Re: oil weight opinions
I use Penrite HPR 15. Wouldn't bother with expensive fully synthetic oils in a old design motor.Wouldn't use rediculously heavy oil in a fresh old design motor either, henc my choice of HPR 15 (20W-60). Penrite recommend HPR 50 (40W-70) for a Cleveland, might be OK in a stuffed Cleveland.
1978 XC Fairmont GXL, Emerald green, Jade Int. 351C, 750 VAC, C10, 9" LSD
Air, steer, power windows................