Motor Oil Info

With the big hills, high heat and extreme cold they work in, nothing has performed better, for the Waste Co. They had installed other diesel oils in its trucks but none were able to provide the level of protection offered by AMSOIL Synthetic Diesel Oil.

Prior to discovering AMSOIL, the conventional lubricants they used would shear out of viscosity-grade rapidly and need to be changed at approximately 200 hours of service. Upon switching to AMSOIL Synthetic 15w-40 Diesel and Marine Oil, they increased the average drain interval for its trucks from approximately 200 hours to nearly 1,000 hours.

AMSOIL Synthetic 15w-40 Diesel and Marine Oil maintained exceptional lubrication properties for the duration of the 983-hour drain interval. It maintained viscosity better than Shell Rotella T did, Measuring 12.33 centistokes (cSt) when drained. Shell Rotella T, on the other hand, measured 10.17 cSt after its 239-hour oil drain interval.

AMSOIL Synthetic Diesel Oil demonstrated superior shear stability over an extended drain interval, even in severe service. AMSOIL 15w-40 Synthetic Diesel Oil shows a stable trend over the extended service period, well beyond the OEM-recommended drain interval.

A cylinder liner from the DT466 Waste Co. truck, still has the OEM cross-hatch pattern in the cylinder, is still evident, after nearly 8,000 hours of operation,demonstrating AMSOIL Synthetic Diesel Oil’s excellent wear control in spite of the extreme shaking, jarring and revving the motor is subjected to on a daily basis. If sufficient lubrication is not provided, excess heat may cause thermal expansion, which can force the cylinder out of round and significantly increase the potential for wear.

An oil’s ability to maintain corrosion protection throughout its service life is measured by Total Base Number (TBN). AMSOIL Synthetic 15w-40 Diesel and Marine Oil is formulated with a high 12 TBN to ensure corrosion protection from combustion blow-by and exhaust gas recirculation (EGR) for the life of the oil. AMSOIL Synthetic Diesel Oil displayed excellent TBN retention ability for the entire 983-hour drain interval.

 AMSOIL Synthetic 15w-40 Diesel and Marine Oil, along with oil analysis, has allowed a Waste Co. to extend its truck’s oil drain intervals to nearly 1,000 hours-four times the length of service possible when it use Shell Rotella T. Waste Co. trucks are well-protected and experience optimum fuel economy, so they stay out of the shop and on the road.

Use of AMSOIL Synthetic 15w-40 Diesel and Marine Oil saves the Waste Co. thousands of dollars in oil alone, in addition to reduced expenses for labor, filters and waste oil and used filter disposal. AMSOIL  Synthetic Diesel and Marine Oil is installed in all 10 of the Waste Co. trucks, providing an annual savings of $3,963.60 in oil costs along.

AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil (AME) is a premium diesel oil providing excellent performance in all types of diesel engines where highly effective control of wear and deposits is vital. Built with heavy-duty dispersant/detergent additives, its 12 (TBN) total base number, chemistry neutralizes acids and controls soot thickening from EGR and blow-by to protect against corrosion, cylinder bore polishing (wear) and varnish/sludge deposits.

AMSOIL, 15w-40 Diesel Oil resists heat and breakdown better than conventional petroleum oils for long-lasting performance and protection.AMSOIL AME remains fluid down to -44f.

Biodiesel fuels have shown poor oxidation stability, which can result in long-term storage problems. When biodiesel fuels are used at low temperatures, filters can be plugged and the fuel can thicken. Sub-standard biodiesel fuel might contain glycerin that can precipitate out of the biodiesel fuel and plug the filter at low temperatures.

Biodiesel fuel is an excellent media for microbial growth, which may cause operation problems, fuel system corrosion and premature fuel filter plugging. Oxygen and other biodiesel characteristics can contribute to increased NOx emissions.

AMSOIL Synthetic Diesel Oils do not offer extended drain interval when using biodiesel fuels.

Lower Energy Content: The energy content of neat biodiesel fuel is about eleven percent (11%) lower than that of petroleum based diesel fuel, resulting in a power loss in engine operation. Engine adjustment for the power losses could lead to violation of EPA antitampering provisions.

Engine Operation Problems: Neat biodiesel and higher percentage biodiesel blends can cause a variety of engine performance problems, including filter plugging, injector coking, piston rings sticking and breaking, elastomer seal swelling and hardening/cracking and severe engine lubricant degradation.

AMSOIL Synthetic Diesel Oils do not offer extended drain interval when using biodiesel fuels.

The physical and chemical properties of biodiesel are similar to petroleum based diesel in terms of operation of compression ignition engines. Therefore, biodiesel can be used in diesel vehicles without expensive alterations to the engine or fuel system. The other major benefits of using biodiesel include the following:

Biodiesel is biodegradable, non toxic and essentially free of sulfur and aromatics.

Improved lubricity

High cetane number

Improved conductivity, particularly for Ultra Low Sulfur fuel

AMSOIL Synthetic Diesel Oils extended drain interval recommendations do NOT apply to vehicles using biodiesel fuels at any mix ratios with petroleum diesel. When using biodiesel fuels at any mix ratio, follow the OEM recommended oil drain interval.

Biodiesel is a mixture of methyl esters of long chain fatty acids like lauric, palmitic, steric, oleic, etc. It is produced by the transesterification of animal fats and vegetable oils. Typical examples are rapeseed oil, canola oil, soybean oil, sunflower oil palm oil and its derivatives from vegetable sources. Beef and sheep tallow and poultry oil from animal sources and cooking oil are also the sources of raw materials.

The chemistry of conversion to biodiesel is essentially the same. Oil or fat react with methanol or ethanol in the presence of catalyst sodium hydroxide or potassium hydroxide to form biodiesel (methylesters) and glycerin. AMSOIL Synthetic Diesel Oil can be used with biodiesel.

EPA emission mandates taking effect in 2010 require the reduction of nitrogen oxides (NOx) to .2 grams per brake horsepower (g/bhp). To meet this limit, engine manufacturers will use either selective catalytic reduction (SCR), NOx adsorber or advanced exhaust gas recirculation (EGR).

Most over-the-road truck and tractor manufacturers will use SCR technology, with International the only major manufacturer to use high EGR technology. Neither system is expected to increase fuel dilution. Light-duty diesel pickup manufacturers Ford and GM also will use SCR technology in their 2011 model-year trucks. Dodge plans to employ SCR technology in its medium-duty chassis cabs but plans to continue use of its NOx adsorber technology in the company’s light duty pickups.

Although AMSOIL Synthetic Diesel Oils have shown the ability to maintain integrity under fuel-dilution conditions, the abnormally high rate and unknown long-term effects have forced AMSOIL to adjust its drain interval recommendations back to the manufacturer-recommended drain.