Thats not to far out. £10 is only 1.5 gallons. (works out around 22.87 mpg)
Around the town driving with this current cold weather will see fuel consumption increase.

 

£10 of diesel is only one and a half gallons.

So that's 24mpg.
About what I'd expect for stop-start use.
Or a couple of cold starts in the current cold weather.
My 2.0 litre does 18mpg when cold, but will improve to average 32-34 mpg on my 40 mile commute.
Not chipped yet.

 

There's really not enough information to make a reasonable decision on your fuel consumption. Even by filling some of the gaps you would still not have supplied enough to judge by. IF we guess you're buying your fuel at say £1.40 a litre that means you've used 7.14 litres to do 35 miles which works out at 4.9 miles per litre or 22.5 mpg (X 4.55). If those 35 miles were from cold and you were stuck in traffic then it would be reasonable but if you were cruising gently then not so much. To get a more accurate reading do it from using the mileage covered and fuel used from at least 2-3 tank fills.

 

Great cheers, can stop worrying a bit now. Still think I’m gonna get the engine flushed to see if it makes a difference to the performance.

 

Keep us posted on the Terraclean if you get it done.
I've seen the videos etc, and it looks interesting.
Didn't know they did diesels too

 

I panic if my 2.5 does less than 29/30mpg around town. 40+ mpg on a run

Back off the loud peddle and avoid unnecessary braking!

 

dont worry my 1.9 only does 40 for £10

it is -5 to +2 and stop start journeys of 5 miles with cold engine

 

Regeneration of an old thread but anyway ----

My 2.5 tdi t5 2005 is only covering 30 miles on 10 pound of shell diesel. Drove to work at 0639 am yesterday easy drive like miss daisy style - drove back the same distance and a small A road trip just and 30 miles and the lights on again!!!

I'm sure a 6.0 AMG merc doesn't use that much fuel!

It's been terra cleaned 2 month as ago to.

 

How do you measure this?

 

So you've only ever put in a gallon and a half of diesel every time you fill up? What's the point in that?
The only way to get accurate mpg is to fill up and brim the tank then use the whole tank and brim the tank again. Ideally from the same pump but not necessary. Then calculate mpg as usual.

There are too many variables when you are only part filling a tank, when the light comes on for example.

 

10 pounds was just an example!

 

i always put 20 litres in mine (about £30) and it usually does about 150 mile. i reset the trip and refill as soon as it enters the red

2.5tdi with 99k with pendle remap

thats mixed driving serving clients in the north east, van usually lightly loaded with computer bits

 

2006 2.5 TDi 130 120k fully loaded camper with 275/40/20 35mpg very happy

 

I can get 13.5 on a spirited run I:

 

Ok done some quick calculations and it appears that im approx +11% on my wheel/tyre combination over standard!!
So I'm assuming this means that I'm doing 11% more miles than indicated on the tach and therefore the mpg readout is displaying -11% inaccurate. Is this right?

It reads approx 32-35 mpg on a steady run so that would mean it should be reading approx 36-39 mpg (I think!) I hope it not the other way round! But my full tank to full tank will give me a far more accurate number, so ill have to wait and see. Interesting exercise though, particularly if your relying on the digital reading for your economy figures. Ill repost my data once I have filled up to give a comparison of how accurate/inaccurate the readings are and factor in the tyre size.

 

Hi
I think yes there is something wrong.
I have a 90K, 2.5 SWB 2005 T5. 130BHP. Remapped by My-self running 170 ish BHP. With ZERO black smoke.

I get 39.9 mpg on a run.

If I do town driving I get 36.6 mpg.

I don't drive it like a rally car nor do I drive it like a nun.

Its running sports suspension and 20" alloys. 2+1 seats (Heavy) and fully insulated, dynamated and carpeted with a roof rack and tow bar.

Only think I do is put a bottle of fuel injector cleaner through every 5 tanks.

T: