Where/how can I find how many miles per gallon my car gets? (It's a used diesal jetta- if that helps)?

Answer 1

I may be missing something here, but the simplest thing is to fill it up, note the mileage on the odometer, drive it, fill it up again, note the mileage on the odometer and the number of gallons it took to fill it up. Subtract the bigger odometer number from the smaller one and you get the number of miles you've driven. Divide that by the number of gallons you just put in your car.

Statistical mileage for a Jetta doesn't help you. Usually they're biased in favor of what mpg they think a new Jetta should get, but you want to know what mpg YOUR car is getting. That's different.

Answer 2

Keep a log. When you fill up the car, write down the odometer (miles on the car) and the amount of gas you put in.

Divide the miles since last fill-up by the gallons you had to replace and you get the actual average miles per gallon between the fill-ups.

The high-tech way is to buy a special instrument (some vehicles come with them from the factory) which tells mpg in real-time, like a speedometer.

An *approximation* is a vacuum gage, which is real-time, but not as accurate, and may not be calibrated (only good for telling when you are getting better or worse mileage)

Answer 3

Seeing you have one, why not do the test yourself? Filler up, mark down the mileage and then drive until the next time you fill it up. Then check the mileage and subtract what it was before and then divide that number by the gallons required to fill it.
Presto ...miles per gallon.

Answer 4

Fill up your tank then drive 100 miles. Fill your tank again and see how many gallons it takes. Divide the number of gallons into 100. If it takes 5 gallons then you are getting 20 miles per gallon.

Answer 5

You can do it your self.
Fill the tank all the way up.
Set the trip meter to 0 or write down current miles
Drive until you need gas again
Fill the tank all the way up
take the amount of miles you drove since the last fill and divide it by the amount of fuel you just put in the tank


Say you drove 420 miles and it took 8.3 gallons of diesel to fill it
420/8.3=50.6mpg

Answer 6

very easy just fill it up with fuel write down the mileage and then when you get fuel again just subtract the mileage and divide that number by the number of gallons it took to fill it up and that is the miles per gallon...have a great day

Answer 7

check out the link below. that should help. but remember a lot of things will affect a cars mileage and those are only estimates based on perfect driving conditions.

Answer 8

Fill you car up with diesel drive it for a few days/miles at least 40, then fill her up again, you'll be able to work it out for yourself.

The manufacturers figures are always innacurate and will not be valid on a used car anyway due to wear and your type of driving.

Answer 9

1. let your tank run almost all the way empty.
2. fill it up and keep note of how much goes in.
3. set your odometer to 0
4. drive till its empty again.
5. note how many miles you went.
6. calculate mpg ... miles/gal=mpg
(ex: 300 miles and 10gal tank gives you 30mpg