Search results

Based on uoa's does anyone know which oil brand's and their weight's produce the best wear numbers for the 4.0 jeep engine with 110,000 miles. Based on the post here it seems the 4.0 jeep engine has a lot of iron showing up in their uoa's. I am mainly looking at blends or dino oils with a 3000...

I have a 2001 jeep wrangler 4.0 with 110,000 miles. I bought it used so I have no idea what kind of oil the previous owner used. I do know the valve train looked spotless when I replaced the valve cover gasket. Anyhow I have been looking around on this site trying to figure out what brand of oil...