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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,977
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John,
Most oils are not type specific. That said I have seen several people take oil designed for airplanes and use them in air cooled cars.
Problem is that airplane engines run at a steady RPM for 90% of their life, not going up and down like a car does. As well they run at very low RPM's when compared to a car. Most airplane engines do not get over 2600 rpm's so a 911's engine going 6500 or a motorcycle going 10,000+ is a totally different matter.
I try to use what the maker recommends or if someone like Lubemeister comes up with something better do not mind trying it in the car.
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2021 Subaru Legacy, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB
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