15w-50 oil
I have a 99 firebird formula that I drag race every weekend.Is mobil
15w-50 oil too heavy to run on a street/strip car?
thanks for any reply.
sincerely
formula
Daren
Daren
I use 10W30 Amsoil and have seen around a half tenth from it (over conventional racing oil). It holds up very good in a daily driven/strip car. Running oil that is too thick just robs horsepower cause your engine has to pump the thick oil.
I run the Mobil-1 0-30 about thirty passes betwean changes without any bearing issues. The oils that you need to be really careful of are in the 0-10 range and are, in my opinion, only good for a couple of passes.
The main reasons that I run light weight synthetics are;
1. Superior oil film to regular oil.
2. Less windage.
3. Faster drain back.
I never run more than four quarts in my LT1 Stocker motors which go thru the traps at 7200 rpm. As a side note my 2003 Mustang had 5-20 oil from the factory.
Best Regards,
Daren


