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Nexcel reconstituted engine oil project

oil vs battery costs

EVs, touted as answers to gas guzzlers, are often electron guzzlers.

BP Nexcel sealed oil system

The objective of this investigation is to demonstrate how the friction and wear performance changed with oil drain intervals. A fleet of three vehicles was run in Las Vegas and oil samples were collected at various drain intervals from 3000 miles to 15000 miles. ...These improvements were observed as early as the 3000 mile drain interval and continued to the 15000 mile drain interval. The composition of tribochemical films formed on the surface with the 3000 mile drain interval is similar to that formed with the 12000 mile drain interval as seen before. ...The composition of tribochemical films formed on the surface with the 3000 mile drain interval is similar to that formed with the 12000 mile drain interval as seen before. These findings could be an enabler for achieving longer drain interval although several other factors must to be considered.

The average oil change interval for passenger vehicles in the USA is gradually increasing, and is currently approaching 8,320 km (5,200 miles). ...As a result, it is predicted that excessively long drain intervals will produce a measurable increase in fuel consumption and associated CO2 emissions. ...However, the data indicate that longer drain intervals are possible for lubricants formulated using synthetic basestocks.

A novel approach to condition the lubricant at a fixed station in the oil circuit is explored as a potential means to reduce additive requirements or increase oil drain interval. ...A novel approach to condition the lubricant at a fixed station in the oil circuit is explored as a potential means to reduce additive requirements or increase oil drain interval. This study examines the performance of an innovative oil filter which releases no additives into the lubricant, yet enhances the acid control function typically performed by detergent and dispersant additives. ...The effectiveness of the filter is demonstrated in tests with two lubricant formulations: an experimental zero-detergent oil and a fully formulated oil. The zero-detergent lubricant contains no detergent additive and is formulated with an ashless antiwear additive.

A flow and heat transfer model of an engine lubrication system has been developed in order to predict sump oil temperature and study heat transfer mechanisms within the lubricating oil circuit. The objective was to develop the capability of simulating all the energy transfers between the oil and the combustion process, the engine coolant, and the engine bay air. ...Included in this simulation is a bearing model for friction heat generation, a combustion heat input model, and component models for each key heat transfer site in the lubricating oil circuit. The model predicts sump oil temperatures under different engine operating conditions and simulation results were compared to test data with good agreement. ...The sensitivity of oil temperature to engine speed, engine load, coolant temperature, piston friction, bearing heat energy generation, piston design, water jacket depth, and oil flow rate(s) was studied.

To find the optimum drain interval of commercially available high performance engine oils of suitable grades for diesel powered rail cars, the durability of the engine oils in field tests and the conditions inside the engines after field tests have been investigated. ...From the series of field test results, a possibility for controlling the drain interval of engine oils based on the traveled distance was suggested and the suitable drain interval of those oils was determined as 45,000km in terms of the distance traveled. ...From the series of field test results, a possibility for controlling the drain interval of engine oils based on the traveled distance was suggested and the suitable drain interval of those oils was determined as 45,000km in terms of the distance traveled.

Four engine oils were field tested in three different types of truck diesel engines using 100,000 mile drain intervals. Periodic oil samples from each test vehicle were analyzed. After 100,000 miles engines were dismantled, inspected and rated. ...Results of this test work indicate that drain intervals much longer than currently recommended are possible with current engine and oil technology. ...Included in this paper are analytical data from the used oil samples and engine inspection reports for the four oil formulations tested.

Analysis results of used oils sampled from many engines operating in the field show that the most critical factor governing the limits of oil use is insoluble fraction concentration in oil. Hence, the authors developed a new oil and by-pass oil filter to increase soot trapping efficiency, so as to extend oil change interval. ...Hence, the authors developed a new oil and by-pass oil filter to increase soot trapping efficiency, so as to extend oil change interval. Soot trapping efficiency could be improved from 30% to more than 80% using a bigger oil filter with fine mesh and a newly developed low soot dispersancy oil. ...Test results proved superior engine lubrication performance of the new oil. THE INTERVAL between lubricating oil changes for diesel engines is twenty to forty thousand kilometers, depending on engine manufacturers' recommendations (1)*.

The engine wear is more a function of silica concentration, load factor and age than the API category of the oil. Oil drain interval is found to be proportional to the sump volume for the same stress on the oil. ...Vehicle field run data were composed and analyzed with intended duty cycle for engine oil drain life estimation. The intermediate commercial vehicle trucks with sump capacity 0.083- 0.104 liter/HP and SAE 15W40 viscosity of oil meeting API CH-4, API CI-4+ from group-I and group-II base stocks are considered. ...Total base number of a minimum of 9 and Max 11.5 is sufficient for BS-III and BS-IV fuel without affecting the oil drain interval. Wear elements like ferrous; copper; chromium; lead; aluminum and silicon Dirt (external) are also within limits.

Thus activities in the sump such as the interaction of the oil drops spun from the crank shaft with the sump oil or with the windage tray, and the agitation of the sump oil by the crank case gas, were not major contributors to aeration at the pump inlet. ...The mesh was to prevent direct impact of the oil drops spinning off the crank shaft onto the sump oil, and simultaneously, to provide sufficient drainage so that there was no significant build up of windage tray oil film that would interact with these droplets. ...The mesh was to prevent direct impact of the oil drops spinning off the crank shaft onto the sump oil, and simultaneously, to provide sufficient drainage so that there was no significant build up of windage tray oil film that would interact with these droplets. Aeration at the oil pump inlet was measured by X-ray absorption in a production V-6 SI engine motoring at 2000 to 6000 rpm.

A field study was conducted to determine the impact of engine age, engine oil age, drain interval, and engine oil formulation on vehicle tailpipe emissions and fuel efficiency. ...FTP/HFET emissions and Fuel economy testing was conducted on Ford Vans powered by Ford V10 6.8 Litre gasoline engines at the start of the drain period, mid-way through the drain period and at the end of the drain period. This work was conducted with approximately 50,000 miles on the engine and then repeated at 100,000 miles. ...It was found that engine age, oil age and drain interval influenced emissions and fuel efficiency. These influences are discussed.

The extension of engine oil drain intervals leads vehicle manufacturers to demand ever greater oil oxydation stability. ...The results obtained on three types of oil (mineral, semi-synthetic and synthetic) while extending the oil drain intervals to 20 or 30000 km. As well as the oil thickening, the evolution of piston cleanliness during the vehicle endurance runs will be presented. ...These demands are evaluated by various tests, and particularly with the help of the ASTM III E and the CEC TU3 High Temperature engine test, which allow: the evolution of the viscosity during test to be observed the aptitude of the oil to avoid ring sticking to evaluated the merit rating of piston cleanliness to established (absence of deposits) This article aims to establish a correlation between the degradation of the engine oil in vehicle endurance and during theCEC TU3 High Temperature engine test on the test bench, and in high temperature laboratory tests.

A new method for the determination of antioxidant capacity in lubricants has been utilized for the analyses of new and used engine oil samples. The results derived from these analyses were used for monitoring the antioxidant decay during laboratory and long drain fleet testing and in various correlation studies. ...The results derived from these analyses were used for monitoring the antioxidant decay during laboratory and long drain fleet testing and in various correlation studies. The application of the method provided new insights into the nature of the oxidative deterioration of engine oils as a function of type and initial concentration of antioxidant additives, of type of base oil and of test or engine severity. ...The application of the method provided new insights into the nature of the oxidative deterioration of engine oils as a function of type and initial concentration of antioxidant additives, of type of base oil and of test or engine severity.

Soot accumulation in diesel engine crankcase is the dominant factor which governs engine oil drain interval. So, efficient soot elimination from crankcase oil can be a practical way to achieve drain interval extension. ...So, efficient soot elimination from crankcase oil can be a practical way to achieve drain interval extension. Combination of high performance oil filter and low soot dispersancy oil results in an effective measure to trap soot efficiently. ...Based on these findings, we developed a low soot dispersancy high-performance oil. Detergency of this oil was evaluated by JASO diesel engine oil detergency test. Finally, the field test of 60,000 km with an engine provided with a high-performance filter using a low soot dispersancy high-performance oil was conducted.

Serviço Estendido ou Serviço Extremo! Pesado investimento no setor automotivo tem sido aplicado no desenvolvimento de tecnologias para prolongar o intervalo de serviço e melhorar eficiência trazendo vantagem competitiva para fabricantes e consumidores. Novas tecnologias de Motores, mais eficientes e menos poluentes com maiores reservatórios de óleo, combustíveis mais limpos com combustão mais controlada, lubrificantes com tecnologias de dispersãncia/detergência inimagináveis. Mas nada seria tão radical quanto sugerir 500.000 km ou 4.000 horas rodadas sem troca de óleo. Este é o desafio final prometido para o sistema de gerenciamento contínuo de óleo desenvolvido e patenteado pela Cummins Inc. em 1997, um novo conceito em troca inteligente do óleo do motor pela sua contínua substituição, sem paradas.

Results show that the CH-4 oil is best suited for the subject engines. Oil drain interval is found proportional to the sump volume for the same stress on oil. ...Oil drain interval is found proportional to the sump volume for the same stress on oil. Group-II base oil performed better than Group-I in limiting TAN and controlling oil consumption. ...Cost effective oil with a TBN of eight is sufficient with low-sulphur fuels without affecting oil drain interval.