quote:
Originally posted by Eddie:
My 95 Jeep with the 4.0L engine was bought new and run to 150,000+miles and sold without leaks or consumption problems. Oil used since new was Mobil 1 10w30. Sold it to my son-in-law who now has ~ 165,000 miles and is using about 1/2 quart per 5,000 mile oil change. My data sugest that the 4.0L engine likes a good 10w30 oil for use in Nothern Illinois where temps range from -10 to 90 degrees F. Heaver oil will work of course but I don't like the trade-off of probabably higher wear and lower gas millage. eddie
