I've been checking mine('89 Renix) the past few fill-ups and have been getting 15.5-15.8 with mostly city driving. I took a trip out to the desert earlier this month and averaged 19.06 mpg. That was with a 5000 foot elevation gain, lots of idling and slow going on dirt roads, and Jeep filled to the headliner with camping stuff (and rum)... plus, a wicked 40 mph headwind most of the way home.

 

Potentially, if your is faulty.

 

Holy **** how'd u get that good of mileage

 

How would I know if it's faulty

 

Change your speedo gear then check again.

 

What would my speedometer have to do with anything

 

look in your repair manual or read this

 

He's suggesting that if your speedo is off it will throw of you mpg calculations, which is true

 

I just want to replace things that help will MPG

 

Start with your speedo gear...at least then your odometer will read correctly, and you can calculate your REAL mpg.

 

My odometer does read correctly

 

If your phone has gps u can get a pretty acurate speed reading.

 

I'm not worried about if my speed is correct I'm just worried about blowing all my money on gas

 

I will admit however I have a bunch of the emissions stuff plugged and have a very bad exhaust leak. that's prob why i get such bad gas mileage, the PO did a bunch of stuff that Im still finding out. The check engine light is not on thought. so Im thinking it is unplugged.

 

Or the fuse is burnt out from always being on