try to figure this one out

[STERLING STINGER]

a couple months ago, i was having a problem with my gas gauge not reading full, it just went to 3/4 when i filled it.

 

the other day, i got fuel and noticed my gauge went all the way up to full now....

 

here's the kicker....

 

instead of 14mpg....i now get 16..

i have ran 2 tanks of fuel through it now and both tanks i got 16 mpg..... :dunno:

 

I'm not complaining by any means, but i don't have a clue how it happened....i did nothing????

 

any ideas old friends?

[STERLING STINGER]

noone knows how this could of happened???? :dunno: :popcorn:

[alleydog]

It's part of the Jeep Mystique, some things just can't be explained!

[mule13]

mine does about the same thing. sometimes it fill it and it goes to full sometimes it only goes to 3/4ths always holding around 8 gallons .I'm not sure about the mpg mine varies from 13 to 15 mpg

not sure when i never connected the 2 actually :)

[STERLING STINGER]

ya, today it only reads 3/4...lets see the mpg on next fill up

[Eagle]

Winter gas ==> Summer gas

[xjrev10]

Winter gas ==> Summer gas

:hmm: don't think so..

[comanche12]

Winter gas ==> Summer gas

thats would be possible but i forget whats different between winter gas and summer gas? different thick of gas for tempature like Oil's?

[Eagle]

Winter gas ==> Summer gas

thats would be possible but i forget whats different between winter gas and summer gas? different thick of gas for tempature like Oil's?

They change the formulation for winter. I don't remember the specifics, but generally "winter" gas delivers about 2 MPG less than "summer" gas.

 

That could explain the gas mileage difference, but it won't explain the fuel gauge antics.

[STERLING STINGER]

i never knew about the winter/summer gas

 

wow,,,,,,,were getting somewhere...

 

update:

 

now, the gague is reading 3/4 and I'm getting 14mpgs again....