Engine oil

grassy said

Did a search and came up blank..I would have though this had been beaten to death.

I just finished a resto mag that stated that our new engine oil is very bad for our classic cars because there isn't enough lube for the tappets.

The suggest a good quality , non synthetic, with a 1/3 of a can of Chevy oil additive.

Does anyone have any opinions..assume 5 to 8K Kilometers a year.

Thanks
Ian.

Click to expand...

Ian,
It's dependant on the camshaft you used. There is a ton of misinformation, and technology goes fast when the feds regulate stuff. If your build runs a camshaft that is less than around 230°@.050 (which covers most stuff up to around the 280/480 cams), or a cam design that has been around for years, you dont really need to worry. The modern oils have enough additives to let those live. As cams get bigger and profiles get more modern they require heavier valve springs. The heavier the valve springs, the more important the oil becomes. What is the engine you're worried about?