Hello all, nice forum you have here.

I just picked up a 30 Chevy Universal AD Sedan, with a 194" engine. It was rebuilt many years ago, and runs very smoothly. As with any new vehicle purchase, I'd like to change the oil in it especially since it seems a tad on the dark side to me. I read to use 30 weight, possibly 10w-30, and still others recommend Rotella 15w-40. So I'm wondering, is it just a preference thing at this point? I'm not opposed to using synthetic either.

Also, how man quarts of oil should be purchased for these engines?

Thanks


GM Lover
1930 Chevy Universal AD Sedam - 194" 6 cylinder
67 Firebird Street Car - 461" Pontiac
68 Firebird Race Car - Turbo Pontiac in progress
82 Trans Am MSE - Pontiac 301 powered
06 Cadillac STS-V - 4.4L Supercharged Northstar V8