best gas saver for my truck
Champion
Joined: Aug 2009
Posts: 3,015
Likes: 8
From: Western NY,
don't get a hypertech, they're third rate. if you really have to have it i've got one for an 01 i'll sell you cheap. if you want a tuner - get a superchips or SCT.
for best mpg - fix plenum, cat, replace timing chain, tune up, replace o2 sensors, modest all terrain tires to 265 or 285 max, avoid mudders, avoid lift. mild tune and drive like grandma. don't expect more than 15-16 mpg.
for best mpg - fix plenum, cat, replace timing chain, tune up, replace o2 sensors, modest all terrain tires to 265 or 285 max, avoid mudders, avoid lift. mild tune and drive like grandma. don't expect more than 15-16 mpg.
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Registered User
Joined: Feb 2011
Posts: 12
Likes: 0
im getting like 10-11 mpg now ive got a new hughes plenum new plugs wires cap rotor new cherry bomb cat new 285/75/16 wrangler duratracs pretty un-aggressive new 3.92 gears i dont really have to have a tuner just looking for something like that or an intake to give me a couple more mpg for under 500 bucks 02 sensors are next on my list to do
Champion
Joined: Aug 2009
Posts: 3,015
Likes: 8
From: Western NY,
im getting like 10-11 mpg now ive got a new hughes plenum new plugs wires cap rotor new cherry bomb cat new 285/75/16 wrangler duratracs pretty un-aggressive new 3.92 gears i dont really have to have a tuner just looking for something like that or an intake to give me a couple more mpg for under 500 bucks 02 sensors are next on my list to do
some people claim to gain 2-3 mpg in the jeep forums with the 5.2 and bosch "703" injectors which are the newer style and spray a better atomized pattern instead of a jet of fuel...you need to have the fuel sync readjusted afterwards...I just did this mod myself but the truck has been out of commision with a cracked pacesetter header and a misfire to fix so I cant comment on results yet. and you might have gotten better mpg's by going with 4.10 gears which are closer to stock ratio for your tire size...
Last edited by Augiedoggy; Feb 23, 2012 at 11:45 PM.
Champion
Joined: Jun 2004
Posts: 2,811
Likes: 2
From: Ft Campbell, KY/TN
Also, if you are city driving, take your truck out of OD. I get to 40 MPH in only a half mile of my 3.5 mile commute. THe rest is avoiding pedestrians, stoplights/signs and getting stuck behind buses.
I switched to taking OD off and I gained .8 MPG over the course of a week.
I switched to taking OD off and I gained .8 MPG over the course of a week.
Record Breaker
Joined: Aug 2010
Posts: 2,241
Likes: 12
From: Ohio
