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Old 16-09-19, 05:28 PM   #1
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Default Diesel system cleaner.

on my mk 1 peugeot 308 1.6 HDI verve i used REDEX DIESEL SYSTEM CLEANER,i was advised from the dealer's (NOT TO USE IT) is this safe to use on my mk2-1.6 blue hdi 120 s/s.
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Old 16-09-19, 05:45 PM   #2
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Wouldn't it be a better long term solution to use one of the branded super diesel fuels with built in cleaning additives?

Surely a tested proven fuel would be better then sloshing some jollop in the tank.
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Old 16-09-19, 05:45 PM   #3
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I never use any additive unless there is a specific issue, I do however put the odd tank of Premium diesel in the car as it has a slightly higher additive content.
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Old 18-09-19, 10:25 AM   #4
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In reply to your question, YES, it is safe to use as long as you do so correctly.

I regularly use V Power Diesel (best diesel on the market) from a Shell garage near me and Millers Diesel Power Ecomax additive. The bottle itself lasts a long time as it advised to use 25 or 50ml shots when your filling up.

The Redex stuff is good but IMO, not as good as the Millers stuff.

By doing the above, I honestly can't remember the last time the vehicle had to actively carry out a DPF regen, runs smoothly and is free from any nasty diesel smells at start up. Some would say its overkill but I tend to think it the best maintenance I can give it.
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Old 18-09-19, 10:48 AM   #5
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Yes as long as it has been tested to a minimum of CEC F-98-08, preferably CEC F-110-16

No if it hasn't.

None of the fuel additives get tested though which is a shame. Looking at the millers stuff, it's mostly a cetane improver, 2 Ethylhexyl Nitrate. Along with ~30% of naphta solvent. All pretty standard stuff really.

Last edited by BiGK; 18-09-19 at 11:29 AM.
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Old 18-09-19, 11:08 AM   #6
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There is an interesting article in this months car mechanics about exhaust system.

They mentioned additives etc and had a warning about the dpf cleaner additives there have been cases where people have over dosed with the additive (which contains chemicals to help burn off the soot) resulting in the DPF overheating from the burning soot melting the matrix and in some cases the metal casing.

In addition they also mention an older article on DPF fluid where they only recommend the use of OEM fluid as the manufacturer's of PAT and other fluids could not or would not provide any evidence of compatabilty

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Old 18-09-19, 11:23 AM   #7
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I've been a long time user of Millers but I've recently started using this stuff:



Cheaper than Millers and still getting exceptional MPG. When I first used it I thought it had damaged something in the tank because the fuel gauge just didn't seem to move!

I'm not sure I'd use it on a modern diesel though. But then again, I just wouldn't buy a diesel these days.
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Old 18-09-19, 03:39 PM   #8
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Quote:
Originally Posted by windy1603 View Post
In addition they also mention an older article on DPF fluid where they only recommend the use of OEM fluid as the manufacturer's of PAT and other fluids could not or would not provide any evidence of compatabilty

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If you remember a DPF fluid post I wrote a while back:


There are 4 DPF fluids used in pugs:

EOLYSŪ DPX 42 (White ring) (until ~2002)
EOLYSŪ 176 (Green Ring) (2002-2010)
Infineum F7995 (Green ring again) (2010 - 2010)
EOLYSŪ Powerflex (Blue ring) (2010+)


I have also ordered those in terms of date, so DPX42 is in the oldest of cars, Powerflex in the newest. Of course some cars received the newer / older DPF fluid systems on changeover dates and models etc.

Eolys 176 and Infineum F7995 are interchangeable, however the rest must never be mixed / changed!

When it comes for replacement, you can of course go to Peugeot to get the correct fluid.

There are common aftermarket PAT Fluid / JLM PAT fluid is available that supposedly does all three but I would caution against using those.

EOLYS itself is a trademarked name, so when a manufacturer offers a EOLYS, it usually just comes from the same manufacturer PSA uses and is simply repackaged, usually from Solway (Hence why PAT / JLM PAT fluid never says EOLYS on it, as it is their own product and not allowed to).

For Eolys 176, I would recommend Walker 80501 or Bosal 258-971 as both are Eolys branded (Walker preferred as they made the MSDS sheets available and it's definitely from Solvay)

Gibbo: Yep, that is the best way to go. I am not a fan of using solvents. Cetane boosters don't actually clean the system though, it just improves how the fuel burns. Now when it comes to system cleansers... I don't think it is necessary. All diesel fuel in the EU has to conform to a base standard and that standard includes keeping the fuel system clean.

But cetane.... the standard is 51. Shell / BP is supposedly around 53-54, as the fuel all comes from the same refinery, they also must use cetane boosters.
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Old 22-09-19, 03:07 PM   #9
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I wouldnt bother with additive, just run 2-3 tanks of V-Power through the engine to clear up any existing build ups, then 1 a month there after.
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Old 22-09-19, 03:55 PM   #10
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I tried V-Power, couldn't honestly tell any difference from standard Tesco, including fuel economy.
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