Replacement Of Oil Research Articles

Effects of Replacement of Fish Oil with Microbial Oil (Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues

A 16-week feeding trial was conducted to investigate effects of replacing dietary fish oil (FO) with docosahexaenoic acid (DHA)-rich microbial oil (MO) from Schizochytrium sp. (T18) on membrane lipid composition of Atlantic salmon parr liver and muscle tissues. Four nutritionally balanced diets were formulated with varying levels of FO, MO, and canola oil (CO), including a control diet with 20% FO, a secondary control diet with 10% FO and 10% CO, and two experimental diets that completely replaced FO with a low (5%) and high (10%) proportion of MO. No significant differences were observed in growth parameters (81–98 g; weight gain), total lipid class composition, and total sterol content among the dietary treatments. However, there were significant differences in the proportions of individual ꞷ3 and ꞷ6 fatty acids in both liver and muscle tissues, reflecting the different dietary treatments. Notably, the presence of low eicosapentaenoic acid (EPA) in the MO diets did not affect the growth performance of the fish, suggesting a lower requirement for EPA in the diet and a greater necessity for DHA. The results also showed that DHA was present in very high proportions in the cellular membrane, particularly in muscle tissue, with low levels of linoleic acid and alpha-linolenic acid. Overall, the findings suggest that MO derived from Schizochytrium sp. (T18) could be a potential substitute for FO in the diet of farmed Atlantic salmon.

Effect of replacement of soybean oil by Hermetia illucens fat on performance, digestibility, cecal microbiome, liver transcriptome and liver and plasma lipidomes of broilers

BackgroundIn contrast to protein-rich insect meal, the feed potential of insect fat is generally less explored and knowledge about the suitability of insect fat as a fat source specifically in broiler diets is still limited. In view of this, the present study aimed to comprehensively investigate the effect of partial (50%) and complete replacement of soybean oil with insect fat from Hermetia illucens (HI) larvae in broiler diets on performance, fat digestibility, cecal microbiome, liver transcriptome and liver and plasma lipidomes. Thus, 100 male, 1-day-old Cobb 500 broilers were randomly assigned to three groups and fed three different diets with either 0 (group HI-0, n = 30), 2.5% (group HI-2.5, n = 35) or 5.0% (HI-5.0, n = 35) Hermetia illucens (HI) larvae fat for 35 d.ResultsBody weight gain, final body weight, feed intake, and feed:gain ratio during the whole period and apparent ileal digestibility coefficient for ether extract were not different between groups. Cecal microbial diversity did not differ between groups and taxonomic analysis revealed differences in the abundance of only four low-abundance bacterial taxa among groups; the abundances of phylum Actinobacteriota, class Coriobacteriia, order Coriobacteriales and family Eggerthellaceae were lower in group HI-5.0 compared to group HI-2.5 (P < 0.05). Concentrations of total and individual short-chain fatty acids in the cecal digesta were not different between the three groups. Liver transcriptomics revealed a total of 55 and 25 transcripts to be differentially expressed between groups HI-5.0 vs. HI-0 and groups HI-2.5 vs. HI-0, respectively (P < 0.05). The concentrations of most lipid classes, with the exception of phosphatidylethanolamine, phosphatidylglycerol and lysophosphatidylcholine in the liver and cholesterylester and ceramide in plasma (P < 0.05), and of the sum of all lipid classes were not different between groups.ConclusionsPartial and complete replacement of soybean oil with HI larvae fat in broiler diets had no effect on growth performance and only modest, but no adverse effects on the cecal microbiome and the metabolic health of broilers. This suggests that HI larvae fat can be used as an alternative fat source in broiler diets, thereby, making broiler production more sustainable.

Baking using oleogels

Baking using oleogels

Quenching for the Future—In Memoriam of Sören Segerberg

Sören Segerberg passed away on July 27, 2021 at the age of 78. Born in 1943 he graduated from Materials Science and Engineering at KTH Royal Institute of Technology in Stockholm, Sweden, in 1968 with a degree in metallurgical science. Sören Segerberg was a leading expert in the quenching area. From 1979 on and the next 25 years, he worked in research and development at the Institute for Engineering Technology Research (IVF, today RISE) in Gothenburg, Sweden. He was one of the initiators of the development and sale of IVF’s Quenchotest/ivf SmartQuench, an equipment for quality control of cooling curve measurement. He was also a contributor in the development of ASTM D6200 and ISO 9950.During his time at RISE, many projects in the field of quenching were carried out involving cooling characteristics of quenchants, classification of quench oils and polymers as well as correlation between quenching characteristics of quenching media and hardness. In the early 90s, one focus lay on environmental adapted quenchants and methods. The work included spray-quenching with e.g. water/air-mixtures, fluidized bed and, of course, cooling in gas. The latter was an extensive part of the work, also including an equipment with an atmospheric furnace connected to a cold high-pressure gas cooling chamber.Pressures up to 40 bar helium and up to 10 bar with nitrogen could be used. The aim was to study whether gas cooling could be used as an environmental adapted replacement for oil or salt cooling. Today the use of cooling in gas has substantially increased and has proven to be a sustainable alternative to liquid quenching, especially oils.

Effects of replacement of fishmeal with other alternative protein sources in the feed on hydrochemical parameters and flesh quality of rainbow trout (Oncorhynchus mykiss)

Abstract. The rainbow trout is preferred for cultivation in Bulgaria due to the high rate of growth and its meat quality. The aim of this study was to track the substitution of fishmeal and fish oil with alternative sources of protein and lipids. The results obtained after substitution with such protein sources – soya worm flour, oil seeds – were controversial. The aim of the experiment was to replace fishmeal and fish oil with an alternative - Ω-3 – FORPLUS algea (Alltech Neogreen®). The hydrochemical and growth parameters were examined, along with the chemical composition of meat during the cultivation of rainbow trout in a recirculating system. Each tested fodder was cultivated in four tanks. The experiment continued for 60 days. The substitution of fishmeal and oil did not influence the hydrochemical parameters. The replacement with - Ω-3 – FORPLUS algea did not lower the growth indicators of the rainbow trout. Fishmeal and fish oil replacement did not exert a negative effect on the chemical composition of the meat.

Effects of dietary replacement of fish oil with different lipid sources on growth, fatty acid composition, mineral content and expression levels desaturase and elongase genes in rainbow trout (Oncorhynchus mykiss)

In this study, the effects of alternative lipid sources on growth, mineral content, proximate composition, fatty acid profile and gene expression of rainbow trout were investigated. Four different diets were prepared with isonitrogenous and isolipid casein-gelatin based formulations, consisting of cod liver oil (CO), goose fat (GF), soybean oil (SO) and mixture of cod liver oil, goose fat and soybean oil (BLEND). Rainbow trout were randomly distributed in three replicate research tanks with 25 fish per tank for each diet group, and the feeding trial lasted for 56 days. Dietary lipid sources did not significantly affect growth performance, feed conversion ratio, survival rate and whole-body mineral composition. The crude lipid and neutral lipid contents were found to be highest in the fish fed GF diet and lowest in the CO group. MUFA content was increased by GF, while it was decreased by SO. Diets generally increased the amount of n-6 PUFA while it decreased the amount of n-3 PUFA and the ratio of n-3/n-6 PUFAs compared to control. The GF diet decreased whole body α-linolenic acid (ALA) and linolenic acid (LA) levels, while SO and BLEND increased these levels. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) levels were decreased generally in three diets compared to the control group. mRNA expression levels of delta-6-desaturase enzyme were increased in SO and BLEND groups with highest values in SO in both muscle and liver tissues. Elongase expression levels were increased in GF and BLEND groups with highest values in GF in both muscle and liver tissues. It was concluded that synthesis of EPA and DHA from LA and ALA is limited in fish fed all diets. Goose fat can be promising dietary source due to its potential of increasing the n-6 content, decreasing the moisture holding capacity and positive effect on flesh quality.

Growth and Welfare Status of Giant Freshwater Prawn (Macrobrachium rosenbergii) Post-Larvae Reared in Aquaponic Systems and Fed Diets including Enriched Black Soldier Fly (Hermetia illucens) Prepupae Meal.

Due to the limited application of insect meal in giant freshwater prawn (Macrobrachium rosenbergii) culture, the present study aimed to (i) produce spirulina-enriched full-fat black soldier fly (Hermetia illucens) prepupae meal (HM) and (ii) test, for the first time, two experimental diets characterized by 3% or 20% of fish meal and fish oil replacement with full-fat HM (HM3 and HM20, respectively) on M. rosenbergii post-larvae during a 60-day feeding trial conducted in aquaponic systems. The experimental diets did not negatively affect survival rates or growth. The use of spirulina-enriched HM resulted in a progressive increase in α-tocopherol and carotenoids in HM3 and HM20 diets that possibly played a crucial role in preserving prawn muscle-quality traits. The massive presence of lipid droplets in R cells in all the experimental groups reflected a proper nutrient provision and evidenced the necessity to store energy for molting. The increased number of B cells in the HM3 and HM20 groups could be related to the different compositions of the lipid fraction among the experimental diets instead of a nutrient absorption impairment caused by chitin. Finally, the expression of the immune response and stress markers confirmed that the experimental diets did not affect the welfare status of M. rosenbergii post-larvae.

Evaluation of the Antioxidant Properties of Carvacrol as a Prospective Replacement for Crude Essential Oils and Synthetic Antioxidants in Food Storage.

The phenolic structural analogues of synthetic antioxidants such as butylated hydroxytoluene (BHT) in essential oils have been reported to exhibit antioxidant properties. Additionally, their lipophilicity makes them suitable for use in lipid-rich foods. This study evaluated the antioxidant capacity of carvacrol, a monoterpenoid antioxidant compound in the Monodora myristica (Gaertn.) seed essential oil, compared to the seed essential oil and BHT. In vitro studies (ferric reducing antioxidant power (FRAP), metal chelating activity (MCA), and nitric oxide scavenging activity (NOSA)) were conducted to ascertain if the antioxidant capacity of carvacrol was comparable to that of the seed essential oil. The potential binding affinity and molecular interactions between carvacrol and lipoxygenase (LOX) and its homologous model were investigated in silico. The molecular docking was performed using Autodock Vina, and the best poses were subjected to molecular dynamics simulation. The IC50 for MCA and NOSA were: carvacrol 50.29 µL/mL, seed essential oil (SEO) 71.06 µL/mL; and carvacrol 127.61 µL/mL, SEO 165.18 µL/mL, respectively. The LOX model was Ramachandran favoured (97.75%) and the overall quality factor in the ERRAT plot was 95.392. The results of the molecular docking and molecular dynamics simulations revealed that lipoxygenase has a higher affinity (-22.79 kcal/mol) for carvacrol compared to BHT. In the LOX-BHT and LOX-carvacrol complexes, the root-mean-square deviation (RMSD), root-mean-square fluctuation (RMSF), and the radius of gyration (RoG) were not significantly different, indicating similar molecular interactions. The results obtained from this study suggest that carvacrol exhibits an antioxidant capacity that may be explored as an alternative for crude essential oils and synthetic compounds during the storage of lipid-rich foods.

Effect of Dietary Lipid Sources and Their Combinations on Growth and Fatty Acid Composition of Milkfish (Chanos chanos) Larvae

Background: The success of larval rearing is greatly influenced by first feeding regimes and the nutritional quality of weaning diets, with dietary lipids being recognized as one of the most important nutritional factors that affect larval growth and survival. Reports are scanty on milkfish larval nutrition and growth and survival unlike other marine species. Methods: In this investigation during 2020, five larval diets were prepared with 40 g kg-1 of entirely fish oil (F4), corn oil (C4) or fish oil and corn oil in 3:1 (F3C1), 2:2 (F2C2) and 1:3 (F1C3) ratios. Each diet was fed to triplicate groups of milkfish larvae (45 mg) in a flow-through rearing system for 42 days. Result: A growth indices were highest in the F3C1 group, followed by F2C2, F4 and other dietary treatments. The whole-body fatty acid profile was found to change significantly with increasing fish oil replacement with corn oil, i.e., the n-3 polyunsaturated and saturated fatty acid proportions decreased linearly, while the n-6 polyunsaturated fatty acids content increased. Overall, this study reveals that growth and survival of milkfish is dependent on dietary lipid source or combinations that meet the essential fatty acid requirements during the early life stages.

Effect of Feeding Acid Oils on European Seabass Fillet Lipid Composition, Oxidative Stability, Color, and Sensory Acceptance.

Acid oils (AO) are fat by-products of edible oil refining with a high energetic value, being an interesting option for a more sustainable aquaculture nutrition. This study was conducted to evaluate the effects of the partial replacement of fish oil (FO) in diets by two AO instead of crude vegetable oils on the lipid composition, lipid oxidation and quality of fresh European seabass fillets, and after their commercial refrigerated storage for 6 days. Fish were fed with five different diets, the added fat being FO (100%) or a blend of FO (25%) and another fat (75%): crude soybean oil (SO), soybean-sunflower acid oil (SAO), crude olive pomace oil (OPO), or olive pomace acid oil (OPAO). Fresh and refrigerated fillets were assessed for fatty acid profile, tocopherol (T) and tocotrienol (T3) composition, lipid oxidative stability, 2-thiobarbituric acid (TBA) value, volatile compound content, color, and sensory acceptance. Refrigerated storage did not affect T + T3 total content but increased secondary oxidation products (TBA values and volatile compound contents) in fillets from all diets. The FO substitution decreased EPA and DHA and increased T and T3 in fish fillets, but the recommended human daily intake of EPA plus DHA could still be covered with 100 g of fish fillets. Both a higher oxidative stability and a lower TBA value were found in SO, SAO, OPO, or OPAO fillets, obtaining the greatest oxidative stability in OPO and OPAO fillets. Sensory acceptance was not affected by the diet or the refrigerated storage, while the differences found in color parameters would not be perceived by the human eye. According to the oxidative stability and acceptability of flesh, SAO and OPAO are adequate replacements of FO as energy source in European seabass diets, which implies that these by-products can be upcycled, improving the environmental and economical sustainability of aquaculture production.

Microalgae as Raw Materials for Aquafeeds: Growth Kinetics and Improvement Strategies of Polyunsaturated Fatty Acids Production.

Studies have shown that ancient cultures used microalgae as food for centuries. Currently, scientific reports highlight the value of nutritional composition of microalgae and their ability to accumulate polyunsaturated fatty acids at certain operational conditions. These characteristics are gaining increasing interest for the aquaculture industry which is searching for cost-effective replacements for fish meal and oil because these commodities are one of the most significant operational expenses and their dependency has become a bottleneck for their sustainable development of the aquaculture industry. This review is aimed at highlighting the use of microalgae as polyunsaturated fatty acid source in aquaculture feed formulations, despite their scarce production at industrial scale. Moreover, this document includes several approaches to improve microalgae production and to increase the content of polyunsaturated fatty acids with emphasis in the accumulation of DHA, EPA, and ARA. Furthermore, the document compiles several studies which prove microalgae-based aquafeeds for marine and freshwater species. Finally, the study explores the aspects that intervene in production kinetics and improvement strategies with possibilities for upscaling and facing main challenges of using microalgae in the commercial production of aquafeeds.

Methodology for energy savings assessment, at engine oil change of road vehicles

The presented paper reveals the possibilities of the implementation of a methodology for evaluating energy savings, at changing the engine oil of different road vehicles. The purpose of the developed methodology is to provide an opportunity to evaluate the energy consumption before and after changing the engine oil of the vehicle. The conditions, the practical procedures and the mechanism for evaluating the energy savings after changing engine oils of vehicles are defined. Changing the engine oil of the car covers the replacement of the old oil with a new one within the maximum mileage determined by the manufacturer. The results of the application of the methodology for certain categories of cars allow an easy process of monitoring and verification. And finally, a computational example is considered, proving that the methodology gives correct results for the evaluation of energy savings, after the replacement of the engine oil of the vehicle.

МЕТОДОЛОГИЯ ОПРЕДЕЛЕНИЯ ОПТИМАЛЬНОЙ ПЕРИОДИЧНОСТИ ПРОФИЛАКТИКИ СМАЗОЧНОЙ СИСТЕМЫ АВТОТРАКТОРНОГО ДИЗЕЛЯ

The reliability of automotive engines is an important problem for the country's economy. Wear, and subsequently failures, often cause a rather long downtime of equipment, significant consumption of spare parts, complicate the operation of the machine and tractor fleet. The cost of overhaul of an automotive engine is more than half the amount of the cost of a new one, and the resource after repair is no more than half the resource of a new engine. Over the entire service life of automotive engines, 5-6 times more money is spent on ensuring their operability than on manufacturing. The main operations for the prevention of the lubrication system of a diesel engine are the replacement and refilling of engine oil, on which the engine resource largely depends. Therefore, the volume of refilling and the frequency of oil change determine the efficiency of the engine and are optimization parameters. The function of these factors is the total unit costs of prevention and repair. Minimizing these costs is the essence of the technical and economic method. The paper presents the results of operational studies related to the dependence of refilling parameters, engine oil aging and the failure rate of internal combustion engines. The data on the performance of a diesel engine with and without an oil level regulator are given. According to the results of the work, an adequate mathematical model was obtained with physical variables of the dependence of costs on the frequency of oil change and the volume of one-time topping. The substantiation of the kinetics of the pre-failure state of the main elements of a forced diesel engine during the aging of engine oil was made and the optimal values of preventive parameters were determined.

Replacement of Conventional Vegetable Oil with Granulated Fats of Palm Oil (Prilled Fats and Calcium Soaps) in Broiler Chicken Diet: Performance and Carcass Traits

Replacement of Conventional Vegetable Oil with Granulated Fats of Palm Oil (Prilled Fats and Calcium Soaps) in Broiler Chicken Diet: Performance and Carcass Traits

Исследование надёжности гидромеханических коробок передач городских автобусов в условиях эксплуатации

The article considers the problem of reliability of hydromechanical gearboxes of city buses with the terms of replacement of transmission oils regulated by the manufacturer, which negatively affect operational efficiency and efficiency in real conditions. The motor transport company has collected and processed information statistics on failures, malfunctions and repair activities in the part of hydromechanical gearboxes of city buses, which has been accumulated during operation. Reliability studies of hydromechanical gearboxes of city buses have been carried out. The list of considered hydromechanical gearboxes of city buses for research is summarized. Mathematical expressions are presented for calculating the values of reliability and durability indicators, namely, the main parameters are calculated - the number of failures or malfunctions, the average time to failure, the average resource, the standard deviation, the coefficient of variation, and the failure flow parameter. The key graphs of reliability and durability indicators of the analyzed hydromechanical transmissions of city buses are shown. Schedules for the distribution of nonfailure operating time, the allocation of resources before repair, as well as changes in the probability of repair of hydromechanical gearboxes of city buses are compiled. The scientific and technical groundwork for further promising research in this area is outlined.

Electrical Analysis of Ceiba Pentandra Oil as a Replacement for Mineral Oil in High Voltage Insulation Application

The application of Ceiba Pentandra Oil is introduced as an alternative to the traditional non-biodegradable insulation oil. Through the recent research in vegetable based insulation oil (coconut oil, palm oil, and olive oil), it is identified that the vegetable insulation oil is biodegradable but edible in nature, which leads to the food crisis. To prevent the insufficiency of food, an interesting non-edible oil is extracted from the seeds of Ceiba Pentandra, which has the capability of biodegradation. This work has focused on the utilization of Ceiba Pentandra seeds for the production of vegetable based insulation oil since it is considered as the sustainable energy resource and. A two-step chemical conditioning method and antioxidants are used to produce the Processed Ceiba Pentandra oil (PCPO). Adding to that, the insulation behavior of Processed Ceiba Pentandra oil (PCPO) with and without antioxidant is analyzed. The different concentrations of PCPO and naphthalene based Mineral oil mixtures have been compared as per the ASTM standard. The two-step chemical conditioning method has provided the enhanced behavior of physical properties like Viscosity, Acidity, Flashpoint, Fire points and AC breakdown voltage. While improving the oxidation stability, the electrical property like AC Breakdown voltage has met the dielectric Standards. Thus this Processed Ceiba Pentandra oil (PCPO) has the potential to be an alternative of traditional insulation oil.

Aquaculture nutrition in Australia: challenges and trends

This review provides an outline of some of the challenges facing nutritionists in the Australian aquaculture industry. It commences with a brief description of how aquaculture nutrition differs from that for terrestrial livestock – the challenges of providing nutrition in aqueous environments, the diversity of species and the high trophic level of most. Specific challenges of aquaculture nutrition are then discussed in further detail, including the difficulty of measuring feed intake and digestibility, the limited ability to use carbohydrates for carnivores, and the specific requirements of species for lipids, including cholesterol, phospholipids, long-chain polyunsaturated fatty acids and carotenoids. The review then examines how environmental, social and governance concerns are leading to new trends in nutrition for the Australian industry. This includes topics such as the replacement of wild-caught fish meal and fish oil, in terms of both sources of omega-3 lipids and protein. For the former, possible solutions include greater use of seafood trimming, algal oil, and GMO-derived products. For the latter, solutions can include use of livestock render, plant protein meals, fermented products, and insects. Nutrient discharge is also a concern for the industry and nutritionist can assist by improving digestibility and nutrient retention from feeds. Finally, the carbon footprint of aquaculture is leading to new directions for industry and, in turn, for the field of aquaculture nutrition.

Analysis of AC breakdown strength of vegetable oils and effect of mineral oil

• AC breakdown strength of coconut oil is studied as against commercial soybean oil. • Analyzed the effect of aging (120 °C, 2 weeks) and mineral oil on AC breakdown strength. • AC breakdown data are statistically analyzed using Normal and Weibull distributions. • Aging or mineral oil reduces the withstand voltage, but the effect is less intense in coconut oil. • Coconut oil can be a potential replacement for traditional mineral oils. The effect of residual mineral oil on the AC breakdown strength of vegetable oil is widely studied to understand vegetable oil's reliability and dielectric integrity in retro-fitting a mineral oil-filled transformer. This paper describes the analysis of experimental results on two types of vegetable oil, namely –refined, bleached, and deodorized (RBD) coconut oil and commercial vegetable oil (MIDEL eN1215) derived from soybean oil seeds. The latter is also to act as a benchmark in analyzing the breakdown performance of RBD coconut oil, which is recently studied as a potential alternative to replace mineral oil from transformers located in tropical countries. The AC breakdown voltage tests were conducted using ASTM D1816 method at normal ambient conditions for both fresh and aged oils and considering 10 and 30% mineral oil in these vegetable oils. It is found that the distributions of breakdown voltages in RBD coconut oil, especially the lowest AC breakdown voltage, are similar to those of commercial vegetable oil for transformers. Therefore, from the viewpoint of AC withstand voltage, RBD coconut oil is equivalent to commercial vegetable oil under new conditions and even better under aged conditions or when mixed with mineral oil.

DEVELOPMENT OF TECHNOLOGY OF BOILED SAUSAGES ENRICHED WITH SPELT FLOUR

DEVELOPMENT OF TECHNOLOGY OF BOILED SAUSAGES ENRICHED WITH SPELT FLOUR

Факторы увеличения срока замены моторного масла в автомобильных дизельных двигателях

The relevance of the research topic is due to the fact that the potential for increasing the replacement period of engine oil in modern and promising automotive engines should have not only a marketing basis, but also a scientific justification for its implementation. The aim of the study is to reduce the unit cost of maintenance of automobile engines by increasing the timing of engine oil change. A particular task within the framework of this article is to establish the factors that cause an increase in the period for replacing engine oil in automobile diesel engines (on the example of the KAMAZ R6 family). The methodological apparatus for solving this problem was based on an in-depth analysis of previously obtained results of experimental studies of the patterns of «aging» of motor oils in diesel engines of the KAMAZ V8 family, depending on various factors in conjunction with the criterion of «rigidity» of the engine oil. For the first time, a quantitative assessment of the influence of the identified factors on the increase in the oil change period is given (ceteris paribus): – the use of oils of higher classes in terms of performance – for example, the transition from CD to CF-4 / SG according to API – by 4,4 times; – reduction of sulfur content in fuel - for example, for the API CG-4 class with a decrease from 0,05% to 0,035% – by 2,6 times, for the API CI-4 class with a decrease from 0,035% to 0,001% – in 2,3 times; – reduction of the criterion of «rigidity» of oil operation A – for example, for API CF-4 / SG class with a decrease (in terms of engine power) from A = 770 to A = 550 – 4 times; for the API CI-4/CG-4 class with a decrease (in terms of oil sump capacity) from A = 1176 to A = 835 – by 2,8 times, and to A = 640 – by 3,1 times. The basic requirements for engine oil of engines of the KAMAZ R6 family are formulated. The selected oils of two brands provided a test-confirmed increase to 150 thousand km. replacement period, and therefore were approved for use by the manufacturer of KAMAZ PJSC. The theoretical value for the development of the branch of science «Operation of road transport» lies in the fact that the identified factors and patterns contribute to the study of the efficiency, quality, characteristics, performance indicators of automotive operating materials. The author sees further research based on this work in a formalized assessment of the influence of the factors under consideration on the period of replacement of engine oil.