your mpg figures pls :)

my 2 litre vRS

on the trip to work cant get above 28mpg
on my recent trip to aberdeen managed 40mpg
can get it under 20mpg on some back road trips though :(

if I'm a good boy its very frugal..if I'm a bad boy its a thirsty beast
 
Getting between 26-29mpg in my Golf 5 GTi DSG around town if I drive nicely. Goes up to about 33mpg on the motorway which I'm not particularly chuffed about :(

Very keen to hear what other GTi owners get.
 
About 18-20 mpg combined generally.

Sorry to hijack the thread a little, but since its all about fuel consumption, is it right that my car is more economical at 85mph than at 60mph? Obviously I would never go that speed on the motorway ;) , but I have very reliable information that says my car is more economical at that speed and I wonder how it could be so. I'd always thought somewhere near 60mph was optimum for fuel consumption.
 
Vauxhall Corsa 1.7 Dti
502 Miles driven since last fill
40 litres put into a 44 litre tank.
57 MPG?! Is that about right?
I do drive like a granddad on Valium though and I rarely need to go above 60 on my current commuting route.
 
About 18-20 mpg combined generally.

Sorry to hijack the thread a little, but since its all about fuel consumption, is it right that my car is more economical at 85mph than at 60mph? Obviously I would never go that speed on the motorway ;) , but I have very reliable information that says my car is more economical at that speed and I wonder how it could be so. I'd always thought somewhere near 60mph was optimum for fuel consumption.
It's unlikely that your car is more economical at 85 than at 60, as it takes 85% more power to maintain that speed. If you have unusual gearing or a rather particular engine then it's possible, but very rare I'd imagine.
 
Are you coasting behind lorries, I never used to get that much ;)

speedob.jpg

Good way to run in the engine and gearbox lol :D
 
Vectra GSI 2.6

27.2mpg - not been reset for about 2000 miles so a mixture of motorway, town, traffic. When pushing on it will drop to below 20, when driving like a grandad I can expect 35.
 
About 18-20 mpg combined generally.

Sorry to hijack the thread a little, but since its all about fuel consumption, is it right that my car is more economical at 85mph than at 60mph? Obviously I would never go that speed on the motorway ;) , but I have very reliable information that says my car is more economical at that speed and I wonder how it could be so. I'd always thought somewhere near 60mph was optimum for fuel consumption.

Its possible that it might be using 4th at 60mph, 5th would be almost labouring the engine, when you come to a hill in 5th at 60 the engine might struggle and certainly wont be running optimally anyway, so either way it wont be superb for economy.
 
About 18-20 mpg combined generally.

Sorry to hijack the thread a little, but since its all about fuel consumption, is it right that my car is more economical at 85mph than at 60mph? Obviously I would never go that speed on the motorway ;) , but I have very reliable information that says my car is more economical at that speed and I wonder how it could be so. I'd always thought somewhere near 60mph was optimum for fuel consumption.

On the Skoda forums people say the same about a remapped vRS being more economical at 80-85 than at 70. On my standard one it isn't the case thats for sure.

I also never realised just how much effect small inclines had on fuel economy :eek: I mean I could feel it in the 306 becuase that had naff all power but with the cruise set on the Octy the difference in one direction of the dual carriageway compared to the other can be massive over say a several mile stretch.
 
I also never realised just how much effect small inclines had on fuel economy :eek: I mean I could feel it in the 306 becuase that had naff all power but with the cruise set on the Octy the difference in one direction of the dual carriageway compared to the other can be massive over say a several mile stretch.

Imagine trying to push it up the hill yourself verses down the hill! :)
 
Its possible that it might be using 4th at 60mph, 5th would be almost labouring the engine, when you come to a hill in 5th at 60 the engine might struggle and certainly wont be running optimally anyway, so either way it wont be superb for economy.

I always feel when not pushing the car that the autobox shifts up to 5th about as quickly as possible. Certainly the difference in RPM shown on the counter between 60 and 85 is negligible. Unless I'm into 3 figure speeds or driving hard, the rev counter never really goes much past 2K.

PMKeates said:
It's unlikely that your car is more economical at 85 than at 60, as it takes 85% more power to maintain that speed. If you have unusual gearing or a rather particular engine then it's possible, but very rare I'd imagine.

Now that sort of makes sense but then I think to myself, on that argument how come the optimal speed for mpg is somewhere between 50 and 60? Surely that requires more power than to keep a car maintained at 40 or 30 or 20 say? My physics and mechanical knowledge are rubbish though, so a brief lesson would be appreciated. I'm guessing it has something to do with gearing?
 
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