>So, if I were to add a data point that I got over 200,000 miles on my 1984 >VW GTI by running it on Valvoline straight 50 weight racing oil, what does >that do to the whole argument? It would say to me that it was garage kept, you commute over 50 miles a day mostly on freeways, it was never started when below 50F, and someone else was paying for the gas. Padgett