The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What's the best oil for a old tired engine?

cjlinkster · 10-06-2011, 10:08 PM

As long as the engine isn't showing signs of excessive blow-by, I would run 10-40w. Some people like to run diesel rated oil like Rotella. I may switch to it at my next oil change. I have been using Rotella in all of my small engines over the last 4 years.

I would not run anything crazy like 20-50w.

10-06-2011, 10:08 PM	#2
cjlinkster Registered User Join Date: Jun 2011 Location: Atlanta ga Posts: 150	Re: What's the best oil for a old tired engine? As long as the engine isn't showing signs of excessive blow-by, I would run 10-40w. Some people like to run diesel rated oil like Rotella. I may switch to it at my next oil change. I have been using Rotella in all of my small engines over the last 4 years. I would not run anything crazy like 20-50w. __________________ 1984 C20, 454, 4 speed named "Gold Member"