The Ford Barn - View Single Post

d. · 05-20-2015, 06:50 PM

yes I am hanging on... I have several cases of 5w/20 left over from a modern car we sold.
Can I use it in my Model A, unknown history, runs well, no smoking?
Should I blend it with straight 30w, or is it OK on its own? Maybe a little STP additive?

05-20-2015, 06:50 PM	#1
d. Senior Member Join Date: May 2010 Location: Raleigh, NC Posts: 510	5w/20 oil OK to use? yes I am hanging on... I have several cases of 5w/20 left over from a modern car we sold. Can I use it in my Model A, unknown history, runs well, no smoking? Should I blend it with straight 30w, or is it OK on its own? Maybe a little STP additive?