[Revolution Racing]

There are several good oils on the market, IMO. What is MOST important, and something I have not heard discussed here yet, is what engine you are talking about, and what the builder's reccomendaton is regarding viscosity. I know that most of the Sprint and Midget motors being built today still call for fairly heavy oils, but as manufacturing gets tighter and specifications get updated you will see lighter and lighter oils. It is important to match the weight of the oil you are using with the type of engine you have, the best oil in the world will destroy your engine if it's too light. Or too heavy.

As far as brands, I have to agree with Leaders Edge just about right down the line. AliSyn is the best I've ever tested, followed very, very closely by Royal Purple, and Lucas. Surprisingly, for the motors we do, good 'ol Mobil 1 synthetic right off the shelf from Pep boys was also not bad at all. This opinion is based upon dyno work where RPM, Oil temp. and power were monitored, along with imperical evidence based on tear-downs.

Bottom line - just in my opinion - there are several good oils on the market. Make sure you use ONE OF THEM.

One more thing - if you are running mechanical injection with methanol (I assume you are) then you have to change your oil along the lines of what others are saying here. Just a fact of life....