So I originally thought I had an issue with valve stem seals cause I get a little blue smoke on startup. The thing is it only happens when I crank the engine when it's already warm. And sometimes it will do it under load or in reverse. But again it's not much and not every time. Just trying...
Idk. It was swapped at some point. The heads look new. Probably an early tbi model because I found a matching alternator under by searching under a 1988 K1500. Is there any reason I shouldn't use 10w40, though? Kinda irked about upping the weight.
I've been getting a little bit of blue smoke on startup. I'm thinking of going with a thicker oil. I'm running 10w30 conventional now. What's the minimum temperature I should run a 350 with 10w40? We're talking Texas Winters. Think the coldest it ever got here was 11 degress F.