increasing MPG on a CDTi
 

guru's

what mods/changes can be done to increase MPG on a CDT?

obviously controlled driving is a must but what else?

ie air intake mod - does it help?

ta

fergy

May I ask if you have a Manual or Autobox?

a good question would be what are you getting now? no point speaking hypothetically when we dont know where to start;)

its a manual matey

i havent actually brimmed the tank yet but my MPG comes across as good to me i dont have a problem im literaly trying to find out what helps and what hurts.

All these modifications are posted all over the forums but nought really on how much they will affect the MPG and as im penny pinching at the moment every little helps :)

People say getting a knackered thermostat fixed should add a few mpg. As a related question, will a faulty theromosat still reduce mpg in the heat of summer?

Check the running temperature using Diagnostic mode test 7. You really need it to run at 90-100C. Most diesels run at 88-90C with a good stat. If you find it's less than 80C, that's one reason for poor mpg. Replacing a defective thermostat is a very effective way of gaining 5mpg or so.

TC

basic things help like a light right foot,keep windows/sunroof shut at all times,no roof boxes either,keep air-con off,make sure tyres are correctly inflated,doing the air intake mod and running a ron box on the correct setting should also increase mpg as torque will be improved doing away with the need to keep changing up and down gears,a de-cat will also help as it stops back pressure in the exhaust system,if you can get a hold of yesterdays sunday times there is a very interesting article on improving mpg in the "in gear" motoring section

By the time you have done all the "mods" you may/may not gain a few mpg. But it will take many many many miles to get your outlay back. :shrug:
...

Yes but your grin will be bigger...:D

Keep windows and Sunroof shut at all times, Don't use air con?

The weight you will lose by sweating will give you at least 2 mpg:D