James, you need to follow Jerry’s advice to the letter. Then, if it works as advertised and you decide to use the engine, switch to whatever you want, Jerry will never know.🛠

The great oil debate has been beat to death on Stovebolt for many years. Do a search for some interesting reading.

Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)