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Old 09-06-2013, 04:26 PM
My Jeep: 2006 3.7L WK
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Follow up on my post, did the seafoam and drove 30 miles home from work and changed the oil and already up from 14.9 mpg to 15.1 mpg and its running smoother and no hesitation.

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Old 07-17-2014, 05:21 AM
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Re: How To: Sea Foam Automotive Treatment

Just did my first ever seafoam treatment on the 08 5.7l. I used this write up and some info from the comments. I got 2 bottles off amazon on sale for 6.99 each. Full bottle went into 1/2 tank of gas. 1/2 bottle each into oil and break booster line.

I got a rather large puff of smoke and was also able to confirm an exhaust leak that my dealer swears doesn't exist but I fricken always hear and it drives me nuts. As the engine began to smoke I saw a small puff come from under center of the truck. I suspect a gasket or something at one of the connections.

Anyway, it's only been in the truck for about 40 miles. I will be doing plugs, PVC, egr, map, oil change, and serpentine belt this weekend. I think I already see an improvement but nothing major at all. I'll report back after the full tune up.

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