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Can i use 5w-30 motor oil?

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Old 08-20-2011, 04:16 PM
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Originally Posted by Browndog
I thought once you used synthetic oil you were not supposed to go back to regular oil?
I'm staying with synthetic just changing the viscosity.
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Old 08-20-2011, 04:19 PM
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10W30 is perfect for your jeep, and YES you can switch to dino at any time. Synthetic IS dino with altered molecules for better lubrication properties, but FILM THICKNESS suffers. Dino quiets the 3.8....
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Old 08-20-2011, 04:21 PM
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Originally Posted by Browndog
I thought once you used synthetic oil you were not supposed to go back to regular oil?
Wives tale! People been doing it for years... I'm sure it's best to stick with one, but it's not going to be an engine killer!
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