What oil do you run in your ABA engine?

20w5 but that is what my engine specifically calls for. It's a "low pressure/high volume" motor. Allegedly.

Like the driver, allegedly. :D

5w30 mobile 1, will probably change as I think the solvent properties of the synthetic may be causing me some issues.
 
I've been very happy with Valvoline VR1 racing oils... till now, it's been all straight 40W; but that doesn't seem to be carried locally anymore, so I now will have to decide between 50W or 20W50... :(
 
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