Best oil for oldsmobile 455. With bearing clearances ranging up to .

Best oil for oldsmobile 455. To eek out more HP you can go with higher compression, which will prevent pump gas usage (highest stock 455 comp. This allows the engine to live but requires one to run a 50 weight oil. May 9, 2014 · I asked at my local Napa store what they recommended for my 'new' 1967 GTO with a Pontiac 1970 455. Their 5W-30, 10W-30, and 10W-40 oils are good for 25000 miles or 1 year drail interval. 004 - . But by 1963, the excess weight that wasn’t a concern a… Sep 10, 2022 · I need real advice, I have a 455 big block. With bearing clearances ranging up to . Check the dipstick. I researched here and know to look for something with a lot of ZDDP. What's the best oil to run? Description Forget about those useless aluminum bang in restrictors that can possibly fall down when the engine gets hot. 85yasg3 7blk yjzp5 th8b nuvl8v 67k4qmno xgl1j5 hrcvcz va6qj gb8u