What oil do you put in your 427 side oiler?

[DanEC]

Depending on if you run a flat tappet cam or a roller cam you need to be concerned about ZDDP. I'm currently running Joe Gibbs in my 3 cars with flat tappet cams but when my current supply runs out I'm going back to Rotella 15W-40 diesel oil as it meets all the necessary criteria. I don't see any need to run synthetic in these cars that get limited mileage.

My opinion on oil weight - I like to have at least 20 lbs pressure at hot idle in the summer. The lightest weight oil that will still achieve that works for me. That opinion is worth not more than 2 cents.

[Bernica]

Originally Posted by DanEC

Depending on if you run a flat tappet cam or a roller cam you need to be concerned about ZDDP.

There is a product out there called "Cam Shield" which is full of ZDDP. But if your are already broken in and running fine, then the above should apply.
After putting my credit card down for a couple of cases of Gibbs, I may look at something else too.