i want to seafoam my 91 cherokee, it has 220,000 miles and original owner wasnt too good on tune-ups, i want the good, bad, and the how-to.
i just did oil change about 300 miles ago, and im on a quarter tank of gas. should i fill up or something?

 

http://www.seafoamsales.com/motor-treatment.html

 

I ran a full bottle in a 1/4 tank. Then tore it down afterwards and it was clean. Some guys spray it in the intake, but it can take out your O2 sensor doing that.

 

it's the magic eraser of internal combustion engines.

 

i like to pour it in the TB while it idles.

 

X2 on that...Tj

 

The TB?

And btw, if you've driven 300miles and still have 1/4 of a tank...thats pretty good imho.

 

dont do it too fast or you will hydro lock your engine and get bent rods
tb= throttle body

 

There are tons of threads on here about this next time please use the search funtion