i been reading alota forums latley since i bought my 83 gl-10 n/a. i love the thing its great but i noticed i just got about 170miles out of a full tank and that doesnt seem to great i tooking 4x4ing at the begining of the tank but i wouldnt think it would effect it that bad. some info or ideas would be great. thanks.

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A good tune up would be a good place to start. Plugs, cap, rotor, air filter, check PCV, check timing, rebuild carb if necessary.

From what I have seen on here a bad O2 sensor affects gas mileage pretty bad on subarus.

well i dont have a o2 sensor and i did fail to mention i did put a break in my exaust when i went 4x4ing last but i wouldnt think that would effect it. i just put a super coil on it about 2 weeks ago and i also put new plugs. i guess a new cap and rotor wouldnt hurt. i been looking for a impendinzo distro or what ever.

i been reading alota forums latley since i bought my 83 gl-10 n/a. i love the thing its great but i noticed i just got about 170miles out of a full tank and that doesnt seem to great

 

Calculate the mileage for real before you go looking for a problem that may not exist. Average it over 4 full tanks. And do the math - the guage is not accurate, and judging by the tank mileage and not how much fuel you have put in the tank is not the proper way to calculate mileage.

 

GD

well i filled it before 4x4ing then i went 172 miles before i filled it again when the gas light came on which took 12 gallons which is pretty close to a full tank:headbang:

well i filled it before 4x4ing then i went 172 miles before i filled it again when the gas light came on which took 12 gallons which is pretty close to a full tank:headbang:

 

Off-roading can use a lot of fuel for not a lot of miles since you are not really moving a whole lot, doing a lot of idleing and such - it's hard to judge. I usually come in around 20 mpg on my lifted wagon when it's driven on the street (to and from off-road only, but that is sometimes pretty far away - two or more tankfulls). So 15 mpg isn't totally off the wall.... you still need to accurately measure it without the off-roading in there.

 

GD

k thanks sound reasonable to me. plus i did talk to the best subaru mecanic on the northwest dave at dhm he said its a lead foot i told him that would make sence, hehe.