sniper

Because you don't use 15.9 gallons do you? Do you run your tank dry and then have a tow truck pick you up and take you to a gas staion? Come on. It's much simpler if that is waht you are actually doing. LOL LOL LOL LOL. just pickin with ya.

You have to have 2 knowns. How far you have drin and how much fuel you used.

Fill your tank, reset your trip. Then drive till your heart is content. Re-fill your tank and divide the miles driven by the amount in gallons it took to re-fill the tank. ( that is how much fuel you consumed over those miles) Not hard now is it? Viola! There ya have it.

sritter

I posted more on this under My current gas mpg, the saga continues if interested.
But the dealer said these are the problems with the poor gas mileage
1. I live in the suburbs and the EPA forces gas stations to sell a different mixture of gas for the winter. I have seen this over the holidays when I took my car to the Pocono’s and it ran on gas from up there, which has a different mixture and I got 20 mpg. The gas changes back in April
2. I only travel short distances most of the week so the car never really warms up until I am at work already.
3. Using more gas causes the engine to use more oil.
4. The car is not broken in yet (only has 1500 miles).

Blame it on the EPA!

123V

Seriously, could at least one person with the low 12-15 mpg confirm that he/she does NOT divide by 15.9 gal when calculating gas mileage? It would just be really silly for this much mulling to be done due to such a ridiculous error. And if everyone HAS been dividing by 15.9 gal, I'm going to the dealer tomorrow to order mine.

jdl

I don't, but you're welcome to check my calcs here. -jd.

sritter

No not dividing by 15.9. Dividing by the amount of gas put into the vehicle at the pump. Of course it is not 100% accurate (depending on if gas pump fills up the car 100%) but it is close enough to know that my vehicle is only getting betwen 11-13 mpg.

ml2316

hehe. honest mistake. let's put it this way...that's not how the epa does it.