We would like to let everything know about our experience with Lucas Oil Products. We are The Quigly Girls, Dorie, Melissa, and Mandy. All three of us share our 2003 Spitzer Dragster. We run a 555 cu. in injected chevy that runs on alcohol. We have used ONLY Lucas Oil Products from the first day. During the cold months we use 20/50 Plus Racing Oil with one quart of Heavy Duty Oil Stabilizer and in the hot months of racing we use 50 Plus Racing Oil with 1/2 Quart of Heavy Duty Stabilizer. The Best testimony to the quality of Lucas Oil Products is that up to today we have over 700 runs on our original set of JE Pistons. Even our engine builder is impressed. We might only be Three girls but we know you can't go wrong when you use Lucas Oil Products.