Todays sophisticated European engines produce higher horsepower densities per cubic inch and topic the engines oil to severe operational conditions. Throw in all the emissions control equipment on these automobiles and the oils used should demonstrate exceptional anti-wear performance and meet the strict formulation requirements needed to fulfill the most current European motor oil specifications.
Those specifications at 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. Since most European car makers specify oil change intervals which might be considerable longer than these of U.S automotive makers, oils meeting these specifications need to demonstrate excellent high temperature/high shear efficiency (HT/HS) to maintain viscosity and provide adequate engine protection.
In addition, turbocharged direct injection (TDI) engines are widespread in European vehicles. Motor oils used in these applications must be very thermally stable to handle the high operating temperatures and resist deposit formation while providing adequate turbocharger cooling. Thermally stable oils assist keep oil passages clean and promote fluid circulation so turbocharger bearings keep cool and lubricated
Because of the sophisticated and extremely efficient air pollution management equipment used on European vehicles, almost all European automobile makers require oil utilized in these applications to be formulated with decrease quantities of sulphated ash, phosphorous and sulfur. (SAPS) SAPS is a commonly used anti-wear additive in motor oils.
The problem is that oils with excessive sulphated ash, phosphorus and sulfur (SAPS) can harm modern exhaust treatment devices. Diesel particulate filters (DPF’s), for instance, require low-SAPS motor oil to assist prevent filter plugging. This is why using motor oil that doesn’t meet the correct specification can cause engine problems and that annoying check engine light to come on!
Because SAPS additives provide a high degree of wear protection, its reduction has caused some motor oil formulators considerable problem in producing a engine oil that both provides excellent protection and meets the automotive makers requirements to be used with their engine advanced air pollution control equipment. Probably the most preferrred motor oil for European engine is high grade synthetic oils engineered for the above specifications. Synthetic oils have very low pour points protecting the engine from oil hunger and providing instant oil pressure when the outside temperature is low while its thermal stability withstands high-temperature/high-RPM breakdown to withstand deposit formations that starve TDI systems of lubrication.
This is why some of the biggest names in European cars resembling Mercedes and Porsche are factory filled with synthetic oil and plenty of require using artificial oil to maintain the cars warrantee.
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