Official vs Real World Fuel Economy

merlin · 9 Mar 2011 at 16:55

Who's up for a little test?

Starting tomorrow - reset trip/economy computers and don't touch them.

Thursday next week we report our average combined MPG and compare them to the manufacturers official MPG.

Is a week long enough to iron things out so everyone has done a bit of city driving/bit of motorway etc?

DM · 9 Mar 2011 at 16:59

12 to the gallon, you can have mine now

mattyprice4004 · 9 Mar 2011 at 17:20

Go on then.

Lashout_UK · 9 Mar 2011 at 17:21

44.4 to the gallon. Claimed 70.6.

DM · 9 Mar 2011 at 17:22

Lashout_UK said:
44.4 to the gallon. Claimed 70.6.

yea walking don6t count, its quite obvious to me you need to drive!

Spamalot · 9 Mar 2011 at 17:52

Lashout_UK said:
44.4 to the gallon. Claimed 70.6.

What car is this in, 70.6mpg combined?!?

Skilid · 9 Mar 2011 at 17:54

I don't travel on the motorway often at all. My claimed town mpg is 32.4 and I actually get 28-30.

Lashout_UK · 9 Mar 2011 at 17:56

Spamalot said:
What car is this in, 70.6mpg combined?!?

Auris HSD

Company hack!

[TW]Fox · 9 Mar 2011 at 17:58

My figure will be 18mpg because I won't be varying from my usual 5 mile trip to work between now and then.

Vigoro · 9 Mar 2011 at 17:58

I should be able to do this i think 31mpg is the combined figure for mine, doubt i will get that though

Chris1712 · 9 Mar 2011 at 17:59

Toyota Corolla T-Sport

Claimed Combined : 34mpg
Real Life Combined : 32 ish, its ruined by the stupidly short 6th gear.

Claimed Urban : 25mpg
Real Life Urban : 25mpg, driven like a granny

Claimed Extra Urban : 42mpg
Real Life Extra Urban : 35mpg. If Toyota had seen fit to use a 6th gear which wasn't about 250rpm less than 5th gear then this would be a lot better I think!

[TW]Fox · 9 Mar 2011 at 18:03

Please can you guys google 'Extra Urban' before you compare your Motorway economy to the EU Extra Urban figure - Extra Urban isn't Motorway driving.

Frozennova · 9 Mar 2011 at 18:26

Book figure 7.9 l/km (35.75mpg if I've converted it right)
Real world, average over last two tanks 23mpg

mcalladine · 9 Mar 2011 at 18:26

recently picked up a mazda rx8 and its doing about 16.8mpg

Tomsk · 9 Mar 2011 at 18:38

Typically 23.5 mpg, a claimed 25.5 mpg from the trip computer and official 28.0 mpg.

Tomsk · 9 Mar 2011 at 18:38

mcalladine said:
recently picked up a mazda rx8 and its doing about 16.8mpg

Is that petrol or engine oil?

rallyfan1986 · 9 Mar 2011 at 18:50

Chris1712 said:
Toyota Corolla T-Sport

Claimed Combined : 34mpg
Real Life Combined : 32 ish, its ruined by the stupidly short 6th gear.

Claimed Urban : 25mpg
Real Life Urban : 25mpg, driven like a granny

Claimed Extra Urban : 42mpg
Real Life Extra Urban : 35mpg. If Toyota had seen fit to use a 6th gear which wasn't about 250rpm less than 5th gear then this would be a lot better I think!

Exactly the same as my Tsport for the first 2. don't think I've ever had 35mpg out of it!

DanTheMan · 9 Mar 2011 at 19:05

53 Toyota Yaris T3 1.3

Urban: 41.5
Extra Urban: 57.6
Combined: 50.4

Trip computer currently reads 45.4mpg over ~2000 miles, 50/50 commuting/extra urban.

wez130 · 9 Mar 2011 at 19:16

Mk3 Mondeo - official figures combined = 36.2mpg
Mk3 Mondeo actual = 28.8mpg

Same journeys to work, about 2 miles of streets, then either 23 miles of A roads or 17 miles of motorway and 8 miles of A roads, both routes sitting at about 80mph

BigglesPiP · 9 Mar 2011 at 19:20

No lies:

2.5 V6 24V Veloce 2 4d 23 mpg 282 g/km K
http://www.parkers.co.uk/cars/specs/summary.aspx?model=6&page=3

This will tall more about the journeys we make then the lies the manufacturers spout.

Basically I meet or exceed the combined figure doing my daily commute (Unclassified roads, B roads and A roads), I drop to 21 at OcUK meets, and hit 28.5 on the motorway circa 85mph.