in my personal truck i use quaker state 10-30 with a quart of lucas (167,000 with a 5.7 vortec), in the modified, straight castrol gtx 50 weight with a quart of lucas, in the monster trucks, they are sponsered by amsoil, so we use all amsoil stuff in them. i refuse to use penzoil though, too much white froth build up from it.
In the race car we have a Lucas Oil sponsorship so we run 50 Weight full synthetic in the motor, along with Lucas full synthetic gear lube in the rear end and semi synthetic in the tranny. Good stuff!! I also run Lucas 10w 30 semi synthetic in my truck. 140,000 miles and counting!
whatever wally world has on sale in the 230.xxx 4.3 vortec Blazer
Nothing but Brad Penn in the race engines. 54 nights and the bearings look like they were just installed
Valvoline max life 20-50 in the summer 10-40 in the winter for excursion diesel 220,000 miles 93 f350 diesel 268,000 miles dodge avenger 198,000 ford escort 135,000 mitsubishi eclipse 103,000 miles 1939 farmall M volvo penta 130 hp boat 1949 ford with 5.0 mustang engine and various mowers pumps and generators. shell racing oil for alky in the late model dont remember the number on it
penz in the race car and what ever i find in the trunks of the junkers i buy at the auction in my drivers..when i waz racing every week end i would save my oil outa the race car and use it in my fine pre owned cars at the lot,pre owned oil for pre owned cars...lol