Quote:
Originally Posted by MFKN3
How about people with stokers and/or superchargers? I'd be keen to hear what they are using.
I have both, so my bearing clearances are good.
2 engine builders have told me to go with 10W40 M1 or motul. Or M1 5W50 was also recommended. (I'm currently running TWS)
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If the clearances are set right the 5-50 is not that great of choice. It does not stay 50wt for long anyway. Living where you do a 5-40 or a 10-40 is a good choice. The Mobil 1 High Milege 10-40 is a excellent oil. Dont pay attention to the high mileage thing as it is just a branding for higher add pack and conditioners. Your engine does not have to have a bunch of miles for it to work well.
Another proven blend for supercharged guys is 50-50 mix of 0-40 and 15-50 mobil 1. Change it every 4k miles. This mix has been running in a car on this board that makes big power and has been for quite a while. You can PM me for more info on that. His request was it not be discussed here.