Fuel consumption. CDT to CDTi

[Rooney]

Originally Posted by Colin_NI

Tbh best thing I ever did was a maf less map and change to 15s for my auto. Car. Drove better than ever.

Can you recommend anybody for mapping here Colin?

[klarzy]

Originally Posted by Colin_NI

Agreed. Auto box does effect the fuel but you need to learn how to drive the auto box. 50% throttle or less means it won't drop a gear.

Tbh best thing I ever did was a maf less map and change to 15s for my auto. Car. Drove better than ever.

and the fuel economy after??

[Robson Rover Repair]

Originally Posted by slim

Can you recommend anybody for mapping here Colin?

Yes. Shall pm you.

[Robson Rover Repair]

Originally Posted by klarzy

and the fuel economy after??

Ive averaged 46mpg brim to brim. Crossing Europe I got it up to 51mpg across 2600 miles. My ipk doesn't work so I can't see the dashs fake mpg lol.

Then the thermostat has gone its dropped to 40mpg now.

[another_clean_sheet]

Originally Posted by Colin_NI

Ive averaged 46mpg brim to brim. Crossing Europe I got it up to 51mpg across 2600 miles. My ipk doesn't work so I can't see the dashs fake mpg lol.

Then the thermostat has gone its dropped to 40mpg now.

Having done a brim to brim mpg check you can then put in a correction factor so that the IPK displays your actual consumption.

[Mike Noc]

Originally Posted by Terryc

I recently changed my 2002(52) 2.0 diesel CDT (110,000 miles) for a 2004(04) 2.0 CDTi. (125,000 miles) Both are Auto. Fuelwise I think I have made a big mistake!
The CDT regularly returned mid 40mpg and on a motorway, cruising at 65/70 mph would be around 50mpg +.
The CDTi is around 10mpg less in all ranges. No matter how gently I drive this I struggle to get it into the 40s. Certainly not worth the slightly
better performance.
Can anyone tell me if this is a normal difference between these two models.

As i do a lot of miles I will be looking for another older CDT.

Very interested in any comments,
Thanks.
Terry.

Same with Mrs Noc's 2004 Auto. You expect poorer fuel consumption with the slushbox, especially round town, but the later cars do seem to suffer more than the older ones.

[Robson Rover Repair]

Originally Posted by another_clean_sheet

Having done a brim to brim mpg check you can then put in a correction factor so that the IPK displays your actual consumption.

Difficult when you can't read your ipk

[Robson Rover Repair]

Originally Posted by Mike Noc

Same with Mrs Noc's 2004 Auto. You expect poorer fuel consumption with the slushbox, especially round town, but the later cars do seem to suffer more than the older ones.

Never once heard this in all my years or having driven 100s of 75s in my life

[Atcchus]

My 52 auto tourer around 178k on the clock gives me around 20mpg town and 35mpg on the run . Had a health check everything is on the spec apart from a slight oil leak from turbo ? ( Cossie Dunc noticed it ) does it affect the mileage ?

[klarzy]

Originally Posted by Atcchus

My 52 auto tourer around 178k on the clock gives me around 20mpg town and 35mpg on the run . Had a health check everything is on the spec apart from a slight oil leak from turbo ? ( Cossie Dunc noticed it ) does it affect the mileage ?

hills may be heavy on the gas...??