أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
American Petroleum Institute (API), which is used to measure the weight of petroleum liquid compared to water.
API IS AUTO MOTIVE PETROLEUM INDUSTRY
American Petroleum Institute rates automotive lubricant's service quality by which service intervals of any vehicle is determined by automotive manufacturers.
For example, all petrol driven vehicles coded with "S", while Diesel driven are with "C". Current version is SN for Gasoline Vehicles; while CI4Plus for Diesel Vehicles. Both are meant for Resource & Energy saving.
