BMW-Specific Oil Info BMW Engine Oil Approvals BMW revises their oil formulations every few years based on contemporary engine design, mileage and emissions requirements, fuel type and quality, region, service plans, and marketing. Each new spec is coded by year and roughly corresponds to new generations of BMW engines. BMW 1-Series. BMW 1-Series belongs to a compact premium class autos which is defined lie C-Segment in Europe. It takes the lowest position in the model line of major German automaker right after BMW 3-Series.Coupes and cabrios were manufactured on base of 1 st gen BMW E81/E87 which had E82 and E88 indexes. Later coupe became separate BMW 2-Series model. . BMW 1-Series competes with such I wanted to know if changing oil was the same as any other BMW. I have a 2010 328 ix sedan Is the oil drained the same way? How do you check the oil level since it has no dip stick? A On most of the newer BMW models that do not have engine oil dipsticks, the actual oil change is really no different than any other model. Until it’s time to refill.