Todays sophisticated European engines produce higher horsepower densities per cubic inch and subject the engines oil to severe operational conditions. Throw in all the emissions management equipment on these cars and the oils used must demonstrate distinctive anti-wear efficiency and meet the strict formulation requirements wanted to meet 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 automotive makers specify oil change intervals that are considerable longer than those of U.S car makers, oils assembly these specs have to demonstrate wonderful high temperature/high shear efficiency (HT/HS) to take care of viscosity and provide adequate engine protection.
In addition, turbocharged direct injection (TDI) engines are frequent in European vehicles. Motor oils used in these applications have to be very thermally stable to handle the high working temperatures and resist deposit formation while providing adequate turbocharger cooling. Thermally stable oils assist preserve oil passages clean and promote fluid circulation so turbocharger bearings stay cool and lubricated
Because of the sophisticated and very environment friendly air pollution management equipment used on European vehicles, almost all European car makers require oil used in these applications to be formulated with lower amounts 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 remedy devices. Diesel particulate filters (DPF’s), for example, require low-SAPS motor oil to assist forestall filter plugging. This is why using motor oil that does not meet the correct specification can cause engine problems and that annoying check engine light to come back on!
Because SAPS additives provide a high degree of wear protection, its reduction has caused some motor oil formulators considerable issue in producing a engine oil that both provides outstanding protection and meets the car makers requirements to be used with their engine advanced pollution management equipment. Essentially the most splendid motor oil for European engine is high grade artificial oils engineered for the above specifications. Artificial oils have very low pour points protecting the engine from oil starvation and providing rapid 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 a few of the biggest names in European vehicles equivalent to Mercedes and Porsche are factory full of synthetic oil and many require the use of synthetic oil to keep up the automobiles warrantee.
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