Diesel Additives

NickP

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Good morning gentlemen, Firstly do you think additives have any benefits, or would I be wasting my money putting diesel additives into an engine, 220CDI that has done 175K?
If there are any benefits by using additives: how often would you recommend that it is added? Now the 64000 Dollar question, which additive? Thanks a lot.
 
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television

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Millers 4 gets very good reviews,, it also raises the cetane level
 

Silver_Star

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Personally I use 2 stroke oil in my C220 CDI. Add it to every fill up in the ratio of 1:200.

I also use a dose of 'Forte Diesel Treatment' every service.

I to have 'heard' very food things about millers however have never personally tried it.
 

Juddian

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Been using Millers for donkeys years, especially since sulphur was all but removed from the fuel....deemed snake oil by many.

I've run Diesels since the early 80's and i've never had a fuelling problem...yet...famous last words, i now have a common rail so we'll see.

I have seen (and didn't bookmark it idiot i am) results in picture and report form from a university test facility where a used Diesel engine was stripped and innards including pistons, head, injectors etc were photgraphed.
The engine was then run for several tankfulls using a good correct dose of Millers.
It was then stripped and rephotographed.
in that short time you could see just how much carbon and gunge had been removed fromthe various parts, especially the injectors.

I have a 2 year old common rail Hilux 3 litre pick up....many of these have had new injectors fitted due to severe cold start rattles, on my make specific forum i seem to have one of the few engines thats relatively quiet at all times (you wouldn't think so compared to an MB mind), now whether this is the Millers helping or because we treat the vehicle with mechanical sympathy, (and change the engine oil more regularly then other's)...allowing it to warm and cool down, i don't know.
It's an ongoing personal experiment, which may give no useful answer in 10 years time.

I use Millers DPS4 in every tankfull, other's swear by a periodic dose of Forte.
 
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*Thumper

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I also use a splash of 2 stroke .......... I have no proof of results, but I can feel a difference ..... a little quieter, a tad more MPG, but nothing I could make a million out of .......
 

Top Cat

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I used to add Millers to a TDI130 VW engined car I once had, and it definately made it quieter and slightly smoother, and also helped reduce some of the smokey haze upon acceleration, but there was no change to the MPG that I could detect. The improvement in 'drivability' was enough in my mind to warrant a dose with every tankful of diesel though.
 

47p2

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I also use Forte at every service
 

Number_Cruncher

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I've run Diesels since the early 80's and i've never had a fuelling problem...

Same here - the difference being I haven't been pouring expensive slop into the tank all the while.

Fuel requirements are listed in your owner's manual. Follow them!
 

Juddian

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Same here - the difference being I haven't been pouring expensive slop into the tank all the while.

Fuel requirements are listed in your owner's manual. Follow them!

I don't mind paying for the expensive slop, and thanks for the advice but i'll carry on with the regime thats served me perfectly well so far.

Many main dealers pour their own particular 'slop' into the tank at service time unless you specifically request them not to, despite what the handbook says.
 

Number_Cruncher

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>>Many main dealers pour their own particular 'slop'

Yes, because the profit margins on the stuff do marvellous things for their workshop target figures!
 

Juddian

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>>Many main dealers pour their own particular 'slop'

Yes, because the profit margins on the stuff do marvellous things for their workshop target figures!

And there was me thinking they were a charity.

Do you explain to those workshops in similar tones they should read their own manuals?
 

rf065

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I buy a bottle of low ash 2-stroke oil from Tesco every now & then, 200ml to a full tank appears to make the engine quieter & smoother.

Also, every now & then I use Redex Diesel treatment, but only when Costco have 4 bottles for £9.95, enough to treat 16 full tanks of diesel.

Russ
 

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