economy standard diesel or + more miles diesel fuel

DMK/Happy

Senior Member
Joined
Aug 26, 2020
Messages
384
Reaction score
165
Your Mercedes
SE / Coupe / 2003 / C 220/CDI/A
Does it really make any difference?
 

Tony Dyson

Senior Member
Joined
Aug 26, 2018
Messages
4,038
Reaction score
2,587
Location
God's Country
Your Mercedes
2014 C 220 CDI W204 OM 651
You need to search the forum, it's been discussed in depth more often than you can shake a stick at and quite recently too!
 
OP
DMK/Happy

DMK/Happy

Senior Member
Joined
Aug 26, 2020
Messages
384
Reaction score
165
Your Mercedes
SE / Coupe / 2003 / C 220/CDI/A
  • Thread Starter
  • Thread starter
  • #5
^^^ this , it’s way cheaper :D
If + diesel fuel was better for the engine in general I would use everytime,by the way I have a litre of Dipetane here what do you think of it ?
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,844
Reaction score
13,139
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
If + diesel fuel was better for the engine in general I would use everytime,by the way I have a litre of Dipetane here what do you think of it ?
Never heard of it buddy , only cetane
 
OP
DMK/Happy

DMK/Happy

Senior Member
Joined
Aug 26, 2020
Messages
384
Reaction score
165
Your Mercedes
SE / Coupe / 2003 / C 220/CDI/A
  • Thread Starter
  • Thread starter
  • #11
I’ll stick with my cetane :D
Think from now on I will fill + more miles diesel at Circle K in the cars and hope for the best.
 
Last edited:

Botus

Senior Member
Joined
Jul 29, 2014
Messages
6,287
Reaction score
2,486
Location
UK
Your Mercedes
S500/2010/500
my father's w211 e280cdi of feb 2006 vintage with 107k miles has run on esso std tractor oil for years....

It hasn't been used much and although tractor fuel doesn't deteriorate like modern petrol, we needed to buy some. I'd done a few recent long trips and remember its characteristics quite well over years of intermittent use (by me). And as we had got some shell discount vouchers to burn, I decided to see what happens when you go full monty and buy Shell posh grade tractor fuel. As soon as the shell stuff went in, the car was transformed. It was far smoother from diesel rattle and rough into a different car. Everyone in the car could feel and hear the change. Even my aged mother in the back (who doesn't drive) was very clear she could feel the car was smoother and quieter. It also felt perkier and happier. I didn't do a run that could tell accurately if the mpg helped but I think I was seeing a gain.

This falls inline with what a Ford forum was saying where all the tractor owners swore upon the benefits of "Millers". Using the phase as if everyone had heard of it. I told tractor driving environmental vandal I know about it and he bought a bottle. This guy is a torque feak, who needs to get a fix every 5 seconds or he gets withdrawal symptoms even in heavy traffic. And has been spreading death for many miles and many years in tractors, and even he was startled about the impact of the Millers additive. As he's tighter than the worst scotsman and this stuff makes cocaine look cheap I was surprised he tried it.

But even today he raves about the transformation. Yet he won't buy the higher spec tractor fuel, nor buy real stuff from esso or shell. Convinced it still OK to waste money on supermarket junk and then adds Millers. I think this is foolish, there are lots of things in premium brand fuel we don't understand well enough that looks after the injection system, the engine and the health of what's rotting in the tank far better than getting safeway peasant fuel.

Not sure if I've tried the rocket fuel along side this but I put a brabus tuning box on it. With covid, they're doing so little miles a tank is lasting them a year. The box unlocks a bit more midrange but the difference is pretty pathetic (lucky I didn't pay the £800 the original owner of the box did - its 50 quid's worth of go, not 800 !!!) And the throttle response is ALL wrong, too much round town. It was actually nicer before, then far too little change in the midrange and top end... its a tractor they've never had any.

It was more for my entertainment than any other reason. But with the box its fuel consumption is fractionally improved, drive on a mega economy hunt and it'll get 3 mpg more, drive normally 0.5 mpg more. Boot it and its goes enough go to make it less dangerous for overtakes and if the TC didn't offend you could have fun on roundabouts in ways it never could before.

It seems they did offer dealerships other profile maps which would be interesting, but no idea how to do that??? First 15% of throttle movement needs less go, and 50% needs more and would make it feel like a real engine rather than a boosted to death tractor.

The point is the way the car drives, smoother more refinement and a little extra is enough most of the time.... its probably the uplift in cetane that helps (when using the posh stuff or millers). The dipetane idea will do something I expect.

You can still buy Viagra pills you pop in the petrol tank they developed in ww2, if the car's design or state of tune suites you get a benefit that's just better than a placebo and sometimes that's enough

other times you can flex the conditions to show a story you want to peddle (cold damp conditions and it makes more on a dyno) - must be the additive
https://www.youtube.com/watch?v=03nL8Z0dRkI
 
Last edited:

AIB understand your special Mercedes deserves a special insurance policy. We have a refreshing attitude to insuring high performance, modified, imported or classic and vintage cars and deal with the UK’s leading insurers. We offer discounts for length of ownership, where the vehicle is kept overnight and limiting the mileage and can also cater for those clients who need higher mileage and business use. To obtain a quotation please call the team on 02380 268351 or visit us atAIB Insurance
Top Bottom