How to figure out the MPG of a vehicle?
- Thread starter Edward78
- Start date
CSE/O-level/GCE/GCSE maths should have taught you this.
MPG is an abbreviation for Miles Per Gallon
eg.
You fill your tank, drive 367 miles and fill it again with 18.6 Gallons.
Miles Per Gallons is number of miles driven divided by gallons of fuel.
367 / 18.6 = 19.7 MPG
MPG is an abbreviation for Miles Per Gallon
eg.
You fill your tank, drive 367 miles and fill it again with 18.6 Gallons.
Miles Per Gallons is number of miles driven divided by gallons of fuel.
367 / 18.6 = 19.7 MPG
Parkers.co.uk has the official MPGs of most cars.
But if you want real-world, then you'll need to do as advised - fill it, drive it, refill it and work it out from distance divided by volume of fuel you just put back in. You'll need to do it a few times and take an average if you want accuracy.
But if you want real-world, then you'll need to do as advised - fill it, drive it, refill it and work it out from distance divided by volume of fuel you just put back in. You'll need to do it a few times and take an average if you want accuracy.
Yep, fuelly works great for this. Fill you tank, run it down, record the miles and litres once you fill it up again, enter the info, and it spits out the results...
uk mpg miles litres price
41.91 569 61.721 1.199
40.11 600 68.001 1.189
40.3 594 67.002 1.219
39.48 577 66.442 1.189
39.95 574 65.31 1.179
38.75 579 67.929 1.169
40.2 600 67.861 1.199
38.13 562 67.002 1.179
38.52 574 67.74 1.169
40.1 578 65.529 1.169
40.6 618 69.201 1.139
38.94 583 68.069 1.149
39.23 526 60.96 1.199
39.21 552 64 1.199
39.27 586 67.838 1.149
39.97 593 67.448 1.199
38.59 531 62.55 1.199
37.48 334 40.511 1.269
39.67 545 62.452 1.249
42.11 621 67.04 1.309
42.52 620 66.29 1.319
That was exported ans a table in excel, the forum doesn't format it well.
Build up a history, and you can see where things like winter fuel comes into play, or driving habits.
uk mpg miles litres price
41.91 569 61.721 1.199
40.11 600 68.001 1.189
40.3 594 67.002 1.219
39.48 577 66.442 1.189
39.95 574 65.31 1.179
38.75 579 67.929 1.169
40.2 600 67.861 1.199
38.13 562 67.002 1.179
38.52 574 67.74 1.169
40.1 578 65.529 1.169
40.6 618 69.201 1.139
38.94 583 68.069 1.149
39.23 526 60.96 1.199
39.21 552 64 1.199
39.27 586 67.838 1.149
39.97 593 67.448 1.199
38.59 531 62.55 1.199
37.48 334 40.511 1.269
39.67 545 62.452 1.249
42.11 621 67.04 1.309
42.52 620 66.29 1.319
That was exported ans a table in excel, the forum doesn't format it well.
Build up a history, and you can see where things like winter fuel comes into play, or driving habits.
I would be surprised if you got better than mid teens at best - on a run - out of that thing, U.S. Vehicles - especially of that age and type - were not designed with economy in mind.
That has the same engine as a lot of chevy pickups. your answer should be similar. 14mpg ish
http://www.fuelly.com/car/chevrolet/silverado_3500_hd
Edit*
also when looking at numbers for these remember a US gallon is different to what we call a gallon
Last edited:
Very important!
A UK gallon = 4.54609 litres
A US gallon = 3.785 litres (approx.)
That's partly why US fuel consumptions look really bad to us - their gallons are smaller. I'm trying to get more used to using l/100 km.
Another vote here for browsing fuelly for real-world figures (make sure to choose the right units).
That's 18 per US gallon?
Soldato
- Joined
- 11 Sep 2013
- Posts
- 12,649
You won't ever get a realistic MPG unless YOU drive it... because a lot depends on *how* and *where* you drive.
For example:
If I'm in town, on my bike, during rush hour, going with the traffic and am 3psi down on my ideal typre pressure - I will get maybe 22mpg.
If I am bombing round the motorway, full (legal) speed, tyres bang on, I can expect over 50mpg.
If I am caning it round the twisties and on-off the throttle between 3rd and 4th gear, I will likely drop to 45mpg.
It is in fact largely nonsense though, I always find my mpg is higher than reported on those sites, and owners clubs etc.. It very much depends on what kind of driving you do and how you drive.
So many times I've got into peoples cars and found that they have this bizarre driving ADHD when they get behind the wheel. Constantly wanting to accelerate up to the back of someone, brake, change down and repeat. I find it very odd, you only need a little bit of patience, leave a reasonable gap, read the road ahead (yes that means 10 cars in front, not just 1) and you can maintain a constant speed and drive calmly without being agitated. This has the benefit that you are more efficient with the use of your fuel, tyres, brakes, and ultimately you don't become one of the people that exacerbates the congestion that you are so keen to get ahead of.
So many times I've got into peoples cars and found that they have this bizarre driving ADHD when they get behind the wheel. Constantly wanting to accelerate up to the back of someone, brake, change down and repeat. I find it very odd, you only need a little bit of patience, leave a reasonable gap, read the road ahead (yes that means 10 cars in front, not just 1) and you can maintain a constant speed and drive calmly without being agitated. This has the benefit that you are more efficient with the use of your fuel, tyres, brakes, and ultimately you don't become one of the people that exacerbates the congestion that you are so keen to get ahead of.
Basic division is taught at primary school.
I used to do the numbers for hotel airport shuttles when I worked near Chicago Midway, we had a fleet of half a dozen E-350 and F-550 Fords, I remember the latter as they were newer and had a 6.8 petrol engine in them. As they were mostly driven below 30 mph and idling at airports a lot we were lucky if we saw 6mpg on those things.