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Topic Review (Newest First)
05-21-2013 08:10 AM
Originally Posted by billybob3358 View Post
Has anyone run rotella 15-40 diesel oil in there jeeps to quietin down the motor
The original Rotella oil was great for diesels but a few years ago they took out the additives that made it good to run in gas engines. It's still better than a lot of oils out there, but not as good as it used to be. I run rotella in most of my cars and trucks.
05-20-2013 10:33 PM
billybob3358 Ok thanks just wondering
05-20-2013 10:31 PM
Jerry Bransford A heavier than recommended lubricant viscosity to muffle lifter noise at the expense of taking longer for the thicker oil to reach all the engine's tiny nooks & crannies doesn't seem like a good thing to me. I'd stick with the factory recommended 5W-30 or 10W-30. A little lifter noise in the 4.0L is normal. If you have excessive lifter noise, I'd have it looked at.
05-20-2013 10:16 PM
rotella oil ???

Has anyone run rotella 15-40 diesel oil in there jeeps to quietin down the motor

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