Diesel Fuel additives ?

[chris_freebie]

Can anyone give any opinions on fuel additives for new turbo diesel engines.

Do they make any difference to new cars ? e.g. redex or similar stuff. Good or bad ? The handbook says do not use them.

My engine is the 150bhp 2.0d

What about a certain well known fuel suppliers brand of diesel plus fuel... any good? (hint they have a green logo)

It's only done 700 miles but its already starting to be a torquey monster

Regards,
Chris.

[Alfa dave]

My experience would suggest that they are useful only for cleaning injectors if you have a problem. The engine is designed to run on standard pump diesel so that is what it will be happiest on. The holes in the injectors on modern diesels are very small so any inpurities can cause problems and the pumps run extremely high pressures so they are best left to their own devices.

Incidentaly does your fuel computer give you hugely optimistic figures? Mine (also a 320d) consistently suggests I'm getting 57+ mpg when I work it out over the last three tanks I reckon it's nearer 47. Can't think why it's that inaccurate....

[chris_freebie]

Sounds like a plan, cheaper not to use them anyway.

I don't have a fuel comp... d'oH!

Do you think its quicker to drive the car from 2,000 rpm and change at 4,000 or drive the revs a bit higher ?

[Alfa dave]

I think it's quicker to stay between about 2,000 and 4,500 - it feels like the highest rate of rise of torque exists there and that's what gives performance feel (rather than the absolute torque value)

When I get back in the wife's 316i it feels like a real slug now...

[chris_freebie]

I think thats the thing with turbo diesels, it doesnt feel fast but my Golf GT TDi 130 left my mates 1.8 Focus standing although it feels faster when you're driving the petrol !

Then again the focus pished all over the golf round the bends !