Thread: ZDDP questoins
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02-01-2011 06:41 PM #8
Any DINO oil that is 40 weight or higher has enough ZDDP. 10/40, 20/50 and 15/40 (diesel oil) are good choices. I use both Rotella T (diesel) 15/40 and Castrol GTX 20/50 in my flat tappet engines with no problems.
For break in, I used GM EOS (me being a Ford guy) for extra protection. The Lucas and Comp Cams stuff is probably just as good.
Personally, I wouldn't use racing oil unless it is specifically marked for use as a regular oil because of different additive packages.Last edited by paul274854; 02-01-2011 at 06:49 PM.
The first model car I built was a 32 Ford roadster by Revell in the mid 50's.
How did you get hooked on cars?