One has to wonder why there is so much fascination with Lucas product. I take my semi to a local Mack dealership in Des Moines that also has a commercial lube shop. They have probably 75% of their entire shelf space loaded up with Lucas stuff. They just can't seem to get it thru their head I want none of it in my engine, as every time I am in there (every 5-6 weeks), they want to know if I want to add Lucas to the oil change. Go over to the many trucking forums and you will be called a freak if you do not worship at the Lucas alter. At every truckstop, there is always a major section in the oil area dedicated to Lucas products. I often ask the other truckers who swear by the stuff to answer this simple question.... "what is unstable about modern engine oils that they need to be "stabilized" by adding Lucas"? I have never gotten any more than anecdotal comments along the line of "I took my engine to 1.2 million without an issue because of Lucas". I respond that I took a '96 Cummins N-14 to 1.4 million without an issue, and all it got for oil was Kendall 15w40.
Now, I have heard some very good things about their fuel injector cleaner product, but that is about it. Forrest Lucas is not going to pay for his name on the stadium in Indianapolis on my dime!