Synthetic oils
But what about zink additives?!?!?!?!?! :bootysha::snakeman:
LOL! That's funny!!
I hate to say it but I'm in the process of changing my oil in the cuda with flat tappet cam of course.
What I have been running is VR1 20W-50 racing oil and a bottle of ZDDP from YearOne. The additive alone shipped to my door costs $20!
Now after reading the link /6 Matt posted (Bobtheoilguy) I'm confused as ever. It's a long story but as much of you know most engine comes in at start up which is 90%. These newer oils address this issue with oil ratings at 0w-30, 5w-30 etc...
20w-50 isn't going to protect at start as much as the latter. The stores around here only get the VR1 in 20w-50 and straight 50w. I went by NAPA today but the place was closed. They show that they have it in 10w-30. A friend of mine sold me a 16oz bottle of the GM EOS assembly lubricant. This isn't a oil additive but is the stuff that was being bought off the shelves when GM said they was going to discontinue it (or something like that). EOS stands for engine oil supplement.
Anyways I don't put alot of miles on my car but like demon seed says the moisture is the killer. Oh and I just can't put synthetic in my old muscle car. It sounds good but I have heard some horrible storys also. Royal Purple comes to mind with spun rod bearings. That's just what I've heard.
So as it stands I'll be getting 5 qts of VR1 10W-30, a filter, and add 8 ozs of the EOS and then hope for the best. Or should I use the whole 16 ozs?
I really don't know whats the best use. I don't believe anyone does actually. LOL