Originally Posted by greentengu9
There's a pretty much underground Lotus presence in Berks, Bucks, and Lehigh Counties in PA, with some pre-GM owners using 20w-50 depending on model.
While some owners seem to gravitate to the Valvoline Racing Oils, or "Euro" oils, I actually use the M1 V-Twin full synthetic. So, there are a few "heavyweight" oil users scattered about the region, too.
I also have ST HD 15w-40 (Conventional) in my ‘72 Grand Prix with an AC Delco PF-24.
Get out, my first car was a 72 Grand Prix SJ Model. Dad gave it to me for my 17th birthday present. Mom & Dad would not let me drive till I turned 17. My GP had 72,xxx original miles on it also -- 400 cubic inches 4 barrel with a 400 turbo trans and factory duals.