I know with my old Porsche race car, and my last car (Subaru BRZ that used 0-20=basically water) there were many discussions on oil, weights and brands.
I just recently bought Roger Sharps's car. He tracked the car occasionally, and estimated the engine had maybe 7000 miles on it.
I know with my last 2 cars, oil was hotly dicussed, and there were many opinions about which was best.
The oil in the car now is Castrol GTX I think, and I know he said it was 20-50 weight.
I want to do the best things I can do to my new car, so I plan on running some really good oil.
Car runs with 30-40lbs at idle (warm/hot) and runs around 70 at road speeds. Temps run right around 200.
10 quart oil pan takes quite a while for oil to get up to temp, but pressures seem to 80+ cold idle, dropping to around 35-40 at idle at 200 degrees.
As far as dino oil goes, I know Brad Penn (renamed Kendall oil-the green stuff) or Swepco (recomended and what I used in my hotrod Porsche) both have lots of zinc and ZDDP.
Then there's the synthetic oils, Amsoil, RedLine, Royal Purple, Motul, all are oils I know are really good, and can't go wrong with.
My oil pressures seem to be high (not sure if that's bad or good), I always have gone with the 10 lbs per thousand rpm.
The engine is a monster, all roller, probably in the 500hp range, and I want to run the best brand, type, and weight that I can in my new engine.
I live in CA, so the temps will never get very low, and I'm thinking of running 30 weight synthetic, probably Redline or Amsoil.
Any thoughts or opinions would be greatly appreciated.
Original Post