Today's sophisticated European engines provide higher horsepower densities per cubic meter and expose engine oil to severe operating conditions. Throwing in all the emission control equipment on these cars and the used oils must show exceptional wear resistance and meet the strict formulation requirements needed to meet the latest European engine oil specifications.
These specifications on this writing are VW 504/00 / 507.00, VW, 502, 505 and 505.01, BMW LL-04, Porsche C-30, ACEA C-3, ACEA A3-B3 / B4, Mercedes Benz 229.31 and 229.51 etc. Because most European automakers indicate oil change intervals significantly longer than US car manufacturers, oils that meet these specifications must show excellent high temperature / high shear performance (HT / HS) to maintain viscosity and provide adequate engine protection.
In addition, turbocharged direct injection engines (TDI) are common in European vehicles. Engine oils used in these applications must be very thermally stable to handle the high operating temperatures and resist the formation of deposits while cooling sufficient turbochargers. Thermally stable oils help keep the oil channels clean and promote fluid circulation so that turbochargers become weak and lubricated.
Due to the sophisticated and extremely efficient contamination equipment used on European vehicles, almost all European car manufacturers require that oil used in these applications be formulated with smaller amounts of sulfate ash, phosphorus and sulfur. (SAPS) SAPS is a common wear additive in engine oils.
The problem is that oils with excessive sulphate ash, phosphorus and sulfur (SAPS) can damage modern exhaust gas purifiers. Diesel particle filter (DPF), for example, requires low SAPS engine oil to prevent filter plugging. This is why using engine oil that does not meet the correct specification can cause engine problems and the annoying check of the engine light!
Because SAPS additives provide a high degree of wear protection, its reduction has caused some engine oil descriptors to have great difficulty in producing an engine oil, both of which provide excellent protection and meet vehicle operators' demands for use with their advanced engine contamination equipment. The most ideal engine oil for European engine is high quality synthetic oils designed for the above specifications. Synthetic oils have very low pour points that protect the engine from oil disturbance and provide immediate oil pressure when the outdoor temperature is low, while its thermal stability resists high temperature / high circumferential breakage to withstand deposition formations that swallow TDI lubrication systems.
That's why some of the biggest names in European cars like Mercedes and Porsche are the factory filled with synthetic oil and many require the use of synthetic oil to maintain the cars warranty.
Amsoil Inc. introduced the first US petroleum engine engine oil in 1972. Today, Amsoil is considered a world leader in high quality synthetic lubrication and offers synthetic engine oils specially designed for the most demanding European automotive applications.