How to figure out the MPG of a vehicle?

[One]

This, is the vehicle I want to know the MPG for...

 

[Scania]

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.

Jesus H!

I struggle to get 6mpg - UK - from a six axle 44ton HGV (truck) - 13 Litre six pot turbo diesel - on urban driving!

Either European trucks are remarkably good fuel consumption wise or US manufacturers couldn't care less about it! - I suspect the latter!

 

[Clarkey]

To be fair it's not hard to get awful mileage when you're not/barely moving.

 

[Scania]

To be fair it's not hard to get awful mileage when you're not/barely moving.

Indeed, but I rarely dip below 8 mpg when crawling through central London fully loaded!

 

[Hyburnate]

Surely fuelly is useless unless you drain the tank, fill up at X point or completely fill it. Sometimes I don't want to do those... I never like to drain the tank, if I'm doing a long drive I'll fill up as much as I'll need before I go and I never really completely fill the tank.

 

[Jonnycoupe]

No

 

[Hyburnate]

No

Oh I see how it works now... You need the litres too... Ahh okay

 

[bainbridge]

I can't work out mpg accurately because when I have a full tank I get a lead foot.

 

[Clarkey]

Why would you not fill the tank? That time you spend queueing and standing on the forecourt, you'll never get those minutes back..

 

[neoboy]

Jesus H!

I struggle to get 6mpg - UK - from a six axle 44ton HGV (truck) - 13 Litre six pot turbo diesel - on urban driving!

Either European trucks are remarkably good fuel consumption wise or US manufacturers couldn't care less about it! - I suspect the latter!

Story wasn't pretty during the slow months in the winter when there weren't as many runs but the drivers had to keep them idling often for heat as Midwest winters are pretty harsh.

We only had 2 older diesel trucks left and were in the process of getting rid of them as only one driver out of over a dozen actually wanted to drive them. We also had drivers forget to plug the engine block heaters in after a shift during winter and had to have them idling all the time in the winter during shifts as they would just refuse to start up again sometimes. Cost us a fortune in maintenance too being older trucks and whatever diesel engine they had wasn't even particularly good on MPG. That coupled with general diesel dislike in America meant drivers just went for the petrol versions unless all were in the shop for maintenance.

In the end once they saw all the costs involved for the fleet they just about phased out the diesels and started replacing the E-350 shuttles with bigger but fewer F550, which worked out cheaper due to the passenger count, MPG costs seemed to have been the least concern for the management.

As for OP at a guess something like that would produce low to mid teens depending on the condition of the engine and of course how you drive it. What on earth you need one of these for anyway, Mongol Rally team?

 

[danza]

Indeed, but I rarely dip below 8 mpg when crawling through central London fully loaded!

That's actually quite impressive tbh.

 

[xs2man]

That's 18 per US gallon?

No. My fuelly displays as UK MPG when logged in.

 

[eatcustard]

This site?

http://www.fuel-economy.co.uk/calc.html

 

[Hyburnate]

Why would you not fill the tank? That time you spend queueing and standing on the forecourt, you'll never get those minutes back..

I act mostly as a taxi so I don't put money in the tank. When I do I fill it But whenever I go I don't end up queuing it's usually straight in, pump #7

e; although tbh I normally stick £40 in and whilst it's not stopping of its own accord it shows over full.

 

[Scania]

DP

 

[Scania]

Story wasn't pretty during the slow months in the winter when there weren't as many runs but the drivers had to keep them idling often for heat as Midwest winters are pretty harsh.

We only had 2 older diesel trucks left and were in the process of getting rid of them as only one driver out of over a dozen actually wanted to drive them. We also had drivers forget to plug the engine block heaters in after a shift during winter and had to have them idling all the time in the winter during shifts as they would just refuse to start up again sometimes. Cost us a fortune in maintenance too being older trucks and whatever diesel engine they had wasn't even particularly good on MPG. That coupled with general diesel dislike in America meant drivers just went for the petrol versions unless all were in the shop for maintenance.

In the end once they saw all the costs involved for the fleet they just about phased out the diesels and started replacing the E-350 shuttles with bigger but fewer F550, which worked out cheaper due to the passenger count, MPG costs seemed to have been the least concern for the management.

As for OP at a guess something like that would produce low to mid teens depending on the condition of the engine and of course how you drive it. What on earth you need one of these for anyway, Mongol Rally team?

Interesting!

That's actually quite impressive tbh.

Indeed, 44t, drag coefficient of a brick wall, 440bhp and four billion lbft of torque! Not bad!

My Scania averages around 9.5mpg overall, which in the grand scheme of things makes my 530i with its 23mpg long term average very inefficient by comparison.

 

[Simian]

I use fuelly.com for this (you tell it each time you fill up, how many litres, price per litre, and miles driven)

Yep! Me too!! See my Sig