MPG Diesel economy

simon1 · 24th May 2008, 20:44

When does the 2.2 start to return decent fuel economy? Mine has 400 miles on the clock and is struggling to get 40mpg in conditions where my old Leon would get 45mpg. I assume it will loosen up a bit soon but when should I expect that to happen?

Type S Bournemouth · 24th May 2008, 21:02

You wont get much more than that. After 10000 miles in mine I was getting just over 40mpg. Thats around town mpg. But it was disappointing for me. Apart from that the car was great but Honda vastly exaggerate on the mpg

C1V1C · 24th May 2008, 21:57

I'm on 13000 and I'm just about to finish of a whole tank and have got 51.9mpg. Mostly country lanes too. It's awesome. Switch on the variable mpg indicator and get up the gears. Granted you drive a bit like a grandad but then when you floor it to overtake it feels even better

) Normal (18yr old in a hothatch) driving I usually get about 44.

simon1 · 24th May 2008, 22:03

That's the sort of figures I would have expected, C1V1C. I'm hoping it will get there soon once it loosens up a bit. How many miles before she starts to?

C1V1C · 24th May 2008, 22:09

I had mine with 2900 on the clock straight from Honda UK and have always been in the 40's, even when having a good razz. Serviced last week and got a 50mpg tank. Dunno what they did to it!
Like I said though, you do have to drive a bit more sedately. I've got a fair trek to work and back and the cost of diesel is pi$$ing me off so I tend to enjoy the scenery a bit more at the moment and take it easy. Keep at it, a good 1000 to run it in I'd say

xfield · 24th May 2008, 22:12

I get 39 - 42 mpg around town, as soon as I do a long hop at higher speeds, the mpg will quickly jump to more like 45 to low 50s.

minisweeper · 24th May 2008, 22:12

Mine's done 27k now and I usually get 44-47mpg over a tank. I had hoped for more but ho hum.

Chris_J · 24th May 2008, 22:53

Mine has 4,600 on the clock now, and I've just done 275 miles to the half tank. I've only done 1 fill up so far so can't accurately calculate the mpg. Mine was straight from Honda UK too.

surfdog29 · 24th May 2008, 22:55

Done about 8000 miles since new and averaged 47.1mpg, however over the last month or so this has jumped up to about 50mpg.

simon1 · 24th May 2008, 23:01

So it's not all bad news then from what I can see. Fair to say that things will improve as I put the miles on it?

CavOK · 25th May 2008, 00:12

I get 51.00 mpg round town and work and back. Best on a run 66.2. Car done 13,000 miles

Glepor · 25th May 2008, 18:39

Are all the figures above taken from the computer readings guys? My last tank indicated 51mpg but my calculations put it closer to 46mpg, so I'm a bit scepical about the readings on the dash.

FWH · 25th May 2008, 19:09

Quote:

Originally Posted by Glepor

Are all the figures above taken from the computer readings guys? My last tank indicated 51mpg but my calculations put it closer to 46mpg, so I'm a bit scepical about the readings on the dash.

The in car reading is known to be optimistic in the 8% area.

Yorkshirestoke · 25th May 2008, 19:18

47.5 MPG since new. Covered 36000 miles mostly Mway.

Wait until you reach 800 - 1000 miles. You should see things get better.

Nexxo · 25th May 2008, 19:55

Quote:

Originally Posted by simon1

When does the 2.2 start to return decent fuel economy? Mine has 400 miles on the clock and is struggling to get 40mpg in conditions where my old Leon would get 45mpg. I assume it will loosen up a bit soon but when should I expect that to happen?

Your problem is that you are trying to compare two trip computers which calculate fuel expenditure differently.

The Leon (like all other Volkswagen/Audi cars) measures mpg only while the car is moving. When it is idling stationary, it pauses measurement (indicated by three horizontal bars "--.-" when in "current mpg" mode). The Honda trip computer however measures mpg at all times, including those times that the car is idling stationary and in fact going nowhere.

This means that all those times you are waiting at traffic lights and junctions (or in traffic jams) are taken into the equation, while in the Leon they are not. This is why the Honda seems to be less economical. It is not. If anything, it is a bit more accurate in its estimates.

DeanFYoung · 25th May 2008, 19:58

You should get an improvement eventually. I find for my car: driving heavy footed ~40mpg, driving normally ~ 45mpg. Driving v.carefully ~49mpg
My driving is short stop / start motorway driving and urban.

If I do any longer motorway journeys I see ~55 now, the most I've gotton from a motorway run of 90 miles was 59mpg and this averaged down to 54mpg for the return leg, where I tried even harder!!! ???

It doesn't really bother me though, its such a great car and engine!

DeanFYoung · 25th May 2008, 20:01

Quote:

Originally Posted by Nexxo

Your problem is that you are trying to compare two trip computers which calculate fuel expenditure differently.

The Leon (like all other Volkswagen/Audi cars) measures mpg only while the car is moving. When it is idling stationary, it pauses measurement (indicated by three horizontal bars "--.-" when in "current mpg" mode). The Honda trip computer however measures mpg at all times, including those times that the car is idling stationary and in fact going nowhere.

This means that all those times you are waiting at traffic lights and junctions (or in traffic jams) are taken into the equation, while in the Leon they are not. This is why the Honda seems to be less economical. It is not. If anything, it is a bit more accurate in its estimates.

Indeed - I have noticed this! And when you reset them, the VW group ones start high and then come down, but the Civic makes you earn a higher reading

.

The civic is much more accurate, its always within 1mpg of my own calculations as well. My last Audi overread by up to 5mpg!

simon1 · 25th May 2008, 20:16

Now that is all very interesting. I must say that the Seat trip computer did seem to start from a higher reading, however I'm not sure I agree that it doesn't take idling into account. I can distinctly remember idling for ages in traffic and watching the average mpg go slowly down as I sat there.

I have noticed one thing though and that is that the stark difference between the spirited 1.9 130bhp tdi in the Leon and the Civic's 2.2. Don't get me wrong - I have never driven a more smooth and quiet diesel than the Civic's, it's a fantastic engine but it's also exremely lazy. By that I mean that there seems to be so much power in it that I have been staying longer in the lower gears, waiting for it to make me want to change up. Today, I started to drive it in the same way I did the Leon, changing up a bit earlier and I got 43mpg on a 35 mile run, mostly on motorway cruising at about 80-85mph. And at say 80mph, the Civic seems to be crawling whereas at the same speed in the Leon, it all seemed to be moving so much quicker.

Essentially, the Civic feels like a much bigger car and therefore the difference in engines, comfort and revs means I will have to try and change my driving style to suit the car. I think I proved that this morning.

congusto · 26th May 2008, 10:32

Quote:

Originally Posted by simon1

And at say 80mph, the Civic seems to be crawling whereas at the same speed in the Leon, it all seemed to be moving so much quicker.

Yeah, I recognize the crawling bit...... still puzzling how I will explain that to the cop giving me a ticket for speeding.

If I drive carefully I do about 45-49 mpg.

C1V1C · 26th May 2008, 10:39

Agreed Simon. I've driven many a diesel before but none the way I drive my civic. Took me ages to get the feeling of when to change and in what condition. I probably haven't got it perfect yet but I'm having a lot of fun.

Enjoy learning! Let me know if you ever find the meaning of Civic!!

24th May 2008, 20:44	#1 (permalink)
simon1 Triangular Exhaust Join Date: 10th December 2007 Location: UK Posts: 313 Thanks: 3 Thanked 5 Times in 5 Posts iTrader: (0)	Diesel economy When does the 2.2 start to return decent fuel economy? Mine has 400 miles on the clock and is struggling to get 40mpg in conditions where my old Leon would get 45mpg. I assume it will loosen up a bit soon but when should I expect that to happen?

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This thread is about: Diesel economy, it's in Engines and Transmission at the Honda Civic forum Civinfo; When does the 2.2 start to return decent fuel economy? Mine has 400 miles on the clock and is struggling to get 40mpg in conditions ...

24th May 2008, 21:02	#2 (permalink)
Type S Bournemouth Supporter Magic Rear Seat Join Date: 3rd October 2006 Location: Bournemouth Posts: 977 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	You wont get much more than that. After 10000 miles in mine I was getting just over 40mpg. Thats around town mpg. But it was disappointing for me. Apart from that the car was great but Honda vastly exaggerate on the mpg

24th May 2008, 21:57	#3 (permalink)
C1V1C Supporter Valve Cap Join Date: 20th January 2008 Location: Bham, UK Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	I'm on 13000 and I'm just about to finish of a whole tank and have got 51.9mpg. Mostly country lanes too. It's awesome. Switch on the variable mpg indicator and get up the gears. Granted you drive a bit like a grandad but then when you floor it to overtake it feels even better ) Normal (18yr old in a hothatch) driving I usually get about 44.

24th May 2008, 22:03	#4 (permalink)
simon1 Triangular Exhaust Join Date: 10th December 2007 Location: UK Posts: 313 Thanks: 3 Thanked 5 Times in 5 Posts iTrader: (0)	That's the sort of figures I would have expected, C1V1C. I'm hoping it will get there soon once it loosens up a bit. How many miles before she starts to?

24th May 2008, 22:09	#5 (permalink)
C1V1C Supporter Valve Cap Join Date: 20th January 2008 Location: Bham, UK Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	I had mine with 2900 on the clock straight from Honda UK and have always been in the 40's, even when having a good razz. Serviced last week and got a 50mpg tank. Dunno what they did to it! Like I said though, you do have to drive a bit more sedately. I've got a fair trek to work and back and the cost of diesel is pi$$ing me off so I tend to enjoy the scenery a bit more at the moment and take it easy. Keep at it, a good 1000 to run it in I'd say

24th May 2008, 22:12	#6 (permalink)
xfield Valve Cap Join Date: 26th October 2007 Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post iTrader: (0)	I get 39 - 42 mpg around town, as soon as I do a long hop at higher speeds, the mpg will quickly jump to more like 45 to low 50s.

24th May 2008, 22:12	#7 (permalink)
minisweeper Triangular Exhaust Join Date: 23rd June 2007 Posts: 209 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	Mine's done 27k now and I usually get 44-47mpg over a tank. I had hoped for more but ho hum.

24th May 2008, 22:53	#8 (permalink)
Chris_J Locking Wheelnut Join Date: 25th April 2008 Location: West Mids Posts: 100 Thanks: 0 Thanked 1 Time in 1 Post iTrader: (0)	Mine has 4,600 on the clock now, and I've just done 275 miles to the half tank. I've only done 1 fill up so far so can't accurately calculate the mpg. Mine was straight from Honda UK too.

24th May 2008, 22:55	#9 (permalink)
surfdog29 Valve Cap Join Date: 28th June 2007 Location: UK Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	Done about 8000 miles since new and averaged 47.1mpg, however over the last month or so this has jumped up to about 50mpg.

24th May 2008, 23:01	#10 (permalink)
simon1 Triangular Exhaust Join Date: 10th December 2007 Location: UK Posts: 313 Thanks: 3 Thanked 5 Times in 5 Posts iTrader: (0)	So it's not all bad news then from what I can see. Fair to say that things will improve as I put the miles on it?

25th May 2008, 00:12	#11 (permalink)
CavOK Valve Cap Join Date: 24th April 2006 Location: Midlands Posts: 41 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	I get 51.00 mpg round town and work and back. Best on a run 66.2. Car done 13,000 miles

25th May 2008, 18:39	#12 (permalink)
Glepor Supporter Wheelnut Join Date: 9th April 2008 Location: Lincoln, England Posts: 91 Thanks: 2 Thanked 1 Time in 1 Post iTrader: (0)	Are all the figures above taken from the computer readings guys? My last tank indicated 51mpg but my calculations put it closer to 46mpg, so I'm a bit scepical about the readings on the dash.

25th May 2008, 19:18	#14 (permalink)
Yorkshirestoke Supporter Locking Wheelnut Join Date: 15th September 2007 Location: Halifax Posts: 102 Thanks: 1 Thanked 0 Times in 0 Posts iTrader: (0)	47.5 MPG since new. Covered 36000 miles mostly Mway. Wait until you reach 800 - 1000 miles. You should see things get better.

25th May 2008, 19:58	#16 (permalink)
DeanFYoung Supporter Magic Rear Seat Join Date: 19th June 2007 Location: Southampton Posts: 572 Thanks: 9 Thanked 3 Times in 3 Posts iTrader: (0)	You should get an improvement eventually. I find for my car: driving heavy footed ~40mpg, driving normally ~ 45mpg. Driving v.carefully ~49mpg My driving is short stop / start motorway driving and urban. If I do any longer motorway journeys I see ~55 now, the most I've gotton from a motorway run of 90 miles was 59mpg and this averaged down to 54mpg for the return leg, where I tried even harder!!! ??? It doesn't really bother me though, its such a great car and engine!

25th May 2008, 20:16	#18 (permalink)
simon1 Triangular Exhaust Join Date: 10th December 2007 Location: UK Posts: 313 Thanks: 3 Thanked 5 Times in 5 Posts iTrader: (0)	Now that is all very interesting. I must say that the Seat trip computer did seem to start from a higher reading, however I'm not sure I agree that it doesn't take idling into account. I can distinctly remember idling for ages in traffic and watching the average mpg go slowly down as I sat there. I have noticed one thing though and that is that the stark difference between the spirited 1.9 130bhp tdi in the Leon and the Civic's 2.2. Don't get me wrong - I have never driven a more smooth and quiet diesel than the Civic's, it's a fantastic engine but it's also exremely lazy. By that I mean that there seems to be so much power in it that I have been staying longer in the lower gears, waiting for it to make me want to change up. Today, I started to drive it in the same way I did the Leon, changing up a bit earlier and I got 43mpg on a 35 mile run, mostly on motorway cruising at about 80-85mph. And at say 80mph, the Civic seems to be crawling whereas at the same speed in the Leon, it all seemed to be moving so much quicker. Essentially, the Civic feels like a much bigger car and therefore the difference in engines, comfort and revs means I will have to try and change my driving style to suit the car. I think I proved that this morning.

26th May 2008, 10:39	#20 (permalink)
C1V1C Supporter Valve Cap Join Date: 20th January 2008 Location: Bham, UK Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	Agreed Simon. I've driven many a diesel before but none the way I drive my civic. Took me ages to get the feeling of when to change and in what condition. I probably haven't got it perfect yet but I'm having a lot of fun. Enjoy learning! Let me know if you ever find the meaning of Civic!!