question about mpg upgrades

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Jan 4, 2011 | 10:54 PM

#16

OOdynamite

CF Veteran

Joined: Oct 2010

Posts: 2,412

Likes: 2

From: York PA/State College PA

Year: 2001

Model: Cherokee

Engine: 4.0L I6

Quote:

Originally Posted by black2000xj

yea i have used that lucas stuff, i usually run a full can of seafoam thru every 3-4 tank....its 7 dollars here, it seems to work good, with good fuel (mobil or shell)

thanks for the tips, maybe i will work on other things and leave the mpg alone while its pretty good for a cherokee

Yup, sounds like you can move on to the next project now

Jan 4, 2011 | 10:58 PM

#17

black2000xj

Thread Starter

Seasoned Member

Joined: Jan 2011

Posts: 493

Likes: 0

From: Grand Haven, Michigan

Year: 1999

Model: Cherokee

Engine: 4.0 I6

good to hear

time for all new fluids

anybody know a trick for putting new fluids in my pumpkins?

last time i did it, it was a mess

hopefully there is a easier way to get it inside when the cover is on

and a gasket, please say there is a gasket instead of that stupid permatex

Jan 4, 2011 | 10:59 PM

#18

ifixit8

Junior Member

Joined: Oct 2010

Posts: 78

Likes: 0

Model: Cherokee

Quote:

Originally Posted by black2000xj

i would be a little careful about seafoam, i use it thru gas alot, and it helps
i have done it thru the brake booster line, didnt get much (smoke as they say)
i got more going thru the throttle body

just fyi, be careful with it, it really work and it can really gum up some parts

i know a guy that poured some into his oil, well it removed the slude, and ruined his motor!

dont know how much he put it, but i do know his vehicle ran fine before he added that seafoam to the oil

just letting you know, little bits at a time

Oh yes I do know the capabilties of Seafoam and how it can actually do worse then good. hence why I only use it yearly thru the tank and only thru the vacuum system as needed or rarely.

Jan 5, 2011 | 12:26 AM

#19

billfrank85

Member

Joined: Sep 2010

Posts: 234

Likes: 1

From: Grand Rapids, MI

Year: 1994

Model: Cherokee

Engine: 4.0

Silly Seafoam, crankcases are for oil.

High quality/fresh fluids, ignition tune up are probably the easiest things you can do to fight the good fight.

Jan 5, 2011 | 01:10 AM

#20

Zab243

Member

Joined: Mar 2010

Posts: 204

Likes: 0

From: Portland, Tn

Year: 1991

Model: Cherokee

Engine: 4.0

296,000 miles on orginial motor, 31x10.50x15 gettin 20mpg

Jan 5, 2011 | 02:43 AM

#21

red97cherokeewithsunroof

Seasoned Member

Joined: Jun 2009

Posts: 472

Likes: 0

From: Middletown, Ohio

Year: 1997

Model: Cherokee

Engine: Straight 6 4.0L

CPS

i had the CPS go out on me. its a yes or no sensor. that means its either good or bad. if its bad your car will NOT start. mine went out on me at about 135xxx miles. it just died in the middle of the road. no warning. it has nothing to do with gas mileage.