I just swapped an M42 engine (from a later 318is) into my old 318i (used to have an M10).
Engine has been heavily refreshed but didn't rebuild, and using original pistons/valves, etc.
Mileage unknown, but compression is within factory spec.
Car is used primarily for rallycross from March to November, but also driven to events (about 70 miles highway) and driven on weekends for fun. I drive it hard. Almost always. This car isn't for leisurely cruising
I'm near Washington DC, but car is driven in the hot summer and cold winter here and there. Don't mind using different viscosities/oil seasonally though....
For my WRX I use Rotella T5 and/or T6 (depending on what's on sale), which I can get at wally-world of course.
Any suggestions on the best oil for the M42 in the BMW?
Engine has been heavily refreshed but didn't rebuild, and using original pistons/valves, etc.
Mileage unknown, but compression is within factory spec.
Car is used primarily for rallycross from March to November, but also driven to events (about 70 miles highway) and driven on weekends for fun. I drive it hard. Almost always. This car isn't for leisurely cruising
I'm near Washington DC, but car is driven in the hot summer and cold winter here and there. Don't mind using different viscosities/oil seasonally though....
For my WRX I use Rotella T5 and/or T6 (depending on what's on sale), which I can get at wally-world of course.
Any suggestions on the best oil for the M42 in the BMW?