Excessive fuel useage

[Nobby Junior Member Find all posts View Profile Close Nobby]

I have a 120TDI and am getting 13.4l/100k. This has happened since new- have done 33K now. I don't drive hard and change the oil every 5K. I read that others are getting around 10 - 12 l/100k. Has anyone got any ideas what might be causing this thirst. The service people can't give me an answer. Hope I can get one here. Thanks Nobby

[Matt Senior Member Find all posts View Profile Close Matt]

what fuel are you running it on (brand)..

if its shell, then i would say it has clogged up the injectors.

[Chiefy Lurker Find all posts View Profile Close Chiefy]

That seems a bit excessive. I have the 4.0l V6 and my 2 tank fulls so far have returned 13.0 & 12.8 L/100k's according to the trip computer.

And thats everday Sydney peak hour driving mainly.

Do you have any accessories that might be adding to the weight ? Another thing that sounds stupid is that a mate of mine was driving around for 6 months with the auto in the D position without overdrive, effectively making it a 3 speed. He was also wondering why the fuel usage was high !

[Fazza Senior Member Find all posts View Profile Close Fazza]

Nobby,

What engine is your 120 & what type of driving (city or highway)?
If your 120 is pre- D4D I think you will find that figures are about right.

Cheers,
Fazza

Maybe the moderators can slip this all into the diesel section :idea:

[Nobby Junior Member Find all posts View Profile Close Nobby]

Thanks for that, the answers are, I always use Shell (no loyalty just handy), the motor is a 1KZ-TE (Dec 2005). I do about 80% city driving. I don't have any accessories to speak of - Nudge bar and side steps outside. As I said I don't drive the car hard so this high figure annoys the bejesus out of me. Thanks for the reply, Nobby

[Matt Senior Member Find all posts View Profile Close Matt]

shell fuel can be bad. I know of quite a few cars in which it has been responsible for clogging the injectors by up to 60%.

try some other fuel and run an injector cleaner thru it on the next tank. Use a few tanks of non shell fuel and see how you go.

[Nobby Junior Member Find all posts View Profile Close Nobby]

Will do, thanks for that. I suppose we all assume that all fuel is the same. Might be the reason they offer 4c/litre off - comes out of the bottom of the tanker!!

[clifton Advanced Member Find all posts View Profile Close clifton]

Hi Matt,
Just a simple question, when you say Shell fuel is clogging injectors are you refering to Distillate or ULP :?:

[NoelA Junior Member Find all posts View Profile Close NoelA]

Thanks for the tip on Shell. I use Shell exculsivly because my company provide me with Shell card and I have been wondering why after only 10000k the fuel consumption for my D4D is going up.

[Chippy Addicted PP Member Find all posts View Profile Close Chippy]

If your Shell card allows you to put oils etc on the card you may want to start adding a bottle of injector cleaner every couple of tanks.

Cheers
Chippy

[NoelA Junior Member Find all posts View Profile Close NoelA]

If your Shell card allows you to put oils etc on the card you may want to start adding a bottle of injector cleaner every couple of tanks.

Cheers
Chippy

Thanks Chippy. Good idea.

[Matt Senior Member Find all posts View Profile Close Matt]

Hi Matt,
Just a simple question, when you say Shell fuel is clogging injectors are you refering to Distillate or ULP :?:

both.

i have a shell card, and have nearly always run shell. When away on holidays recently, i filled up with a different brand of fuel. I noticed improvements with economy straight away.

ill continue to use shell, but will use some injector cleaner from time to time.

[Hutch Addicted PP Member Find all posts View Profile Close Hutch]

Matt, i also use shell exclusively, can you gives us more info as to your claims about clogging injectors as my V6 fuel consumption is going up as well as i log every tank of fuel.

[Nobby Junior Member Find all posts View Profile Close Nobby]

Just thought I would update. After my original post and the replys I got, I filled up at Caltex. Have just filled up again and recorder 12l/100k. That is from 13.4 to 12. Much the same driving, so you tell me "Oils aint Oils".

[Nobby Junior Member Find all posts View Profile Close Nobby]

Sorry, made a mistake. Should be 11.56l/100k. 160 litres for 1384K's. Even better. Nobby