Seafoam questions - Page 2 -
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post #16 of 17 Old 05-11-2013, 06:12 PM
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1997 ZJ 
Join Date: Apr 2012
Location: Hammond
Posts: 573

This is a vid of me using seafoamon my 4.0. I pour directly into the throttle body.

good gas mileage is highly overrated.
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post #17 of 17 Old 05-11-2013, 06:23 PM
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Join Date: Mar 2013
Location: Portsmouth
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:ve run seafoam in the tanks and thru vacuum lines on all7 jeeps I've owned, put out more smoke than a football stadium and it really wakes up performance on a 4.0, I usually put a lil in the oil 2-3 miles before changing it, Seafoam is mostly kerosene and cleans carbon build up a lot, as far as dumping down intake tube on FI motor, I would use caution, but revving motor with brake booster vac line...let it smoke n clean,def has better throttle response afterwards
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