86°
EXPIRED
STP Diesel Particulate Filter Cleaner - 200ml £5.00 also Oil Treatment & Power Booster £3.00 each @ Halfords
STP Diesel Particulate Filter Cleaner - 200ml £5.00 also Oil Treatment & Power Booster £3.00 each @ Halfords

STP Diesel Particulate Filter Cleaner - 200ml £5.00 also Oil Treatment & Power Booster £3.00 each @ Halfords

STP Diesel Particulate Filter Cleaner - 200ml £5.00 was £9.99 @ Halfords

Also reduced:
STP Diesel Oil Treatment 300ml £3.00 was £5.99
STP Power Booster 200ml £3.00 was £5.99

14 Comments

Voted hot on the price but I really wonder if they work or are they just snake oil?

Ralph888

Voted hot on the price but I really wonder if they work or are they just … Voted hot on the price but I really wonder if they work or are they just snake oil?


I couldn't comment because I don't know - but, if the science is feasible where these things make it through the combustion chamber and act as a catalyst to lower the temperature at which the DPF will regenerate, then I suppose they could be effective?

nomisco

I couldn't comment because I don't know - but, if the science is feasible … I couldn't comment because I don't know - but, if the science is feasible where these things make it through the combustion chamber and act as a catalyst to lower the temperature at which the DPF will regenerate, then I suppose they could be effective?



If there's a simple catalyst to make the dpf function at a lower temperature, why don't the car manufacturers use it?

goldy12

STP Diesel Particulate Filter Cleaner - 200ml £5.00 was £9.99 @ H … STP Diesel Particulate Filter Cleaner - 200ml £5.00 was £9.99 @ Halfords



Only Halfords would ask £9.99 for it. 2 for £9.75 (free delivery) on Amazon.

amazon.co.uk/662…PIM


I got the particulate cleaner for £1.50 (£2) in my store

This stuff doesn't work. Don't waste your money.

Original Poster

[

LesD

Only Halfords would ask £9.99 for it. 2 for £9.75 (free delivery) on A … Only Halfords would ask £9.99 for it. 2 for £9.75 (free delivery) on Amazon.https://www.amazon.co.uk/66200EN-2-Diesel-Particulate-Filter-Cleaner/dp/B00H1STPIM



Still cheaper at Halfords and can pick up today if you only want one £6.29 for one from the same retailer on Amazon

Edited by: "goldy12" 18th Feb

nomisco

I couldn't comment because I don't know - but, if the science is feasible … I couldn't comment because I don't know - but, if the science is feasible where these things make it through the combustion chamber and act as a catalyst to lower the temperature at which the DPF will regenerate, then I suppose they could be effective?


A dpf has to be at a high temperature to regenerate usually around 600°. Terraclean can clean dpf effectively unless it's full of ash rather than soot in which case it will need to be sent off to clean it out

ArthurDent1

If there's a simple catalyst to make the dpf function at a lower … If there's a simple catalyst to make the dpf function at a lower temperature, why don't the car manufacturers use it?


Some manufacturers do, some don't. I think it's urea based and goes in a separate tank on some cars. Others just inject fuel after the combustion stroke so it's exhausted. Others vaporise diesel via a small heater element in the path of the DPF. Why methods dffer is anyone's guess? Patents?

Some vehicles like my Passat can be "instructed"to burn off the DPF if you haven't done sufficient long fast mileages..From what i remember means stationary with the engine racing!!

nomisco

Some manufacturers do, some don't. I think it's urea based and goes in a … Some manufacturers do, some don't. I think it's urea based and goes in a separate tank on some cars. Others just inject fuel after the combustion stroke so it's exhausted. Others vaporise diesel via a small heater element in the path of the DPF. Why methods dffer is anyone's guess? Patents?



Yeah, I wondered if it was just urea like the Ford minibuses we have at work use and Volkswagen engines pretend to use. Apparently it's not; it's Cerium Oxide which, as you said is a catalyst that helps soot burn off at a lower temperature.
My car doesn't have a dpf (but it's just had its EGR valve replaced because it was sticking and I wondered if this might stop it happening again). Hard to say how much this helps clear dpf filters or stop them getting clogged, but there seem to be a few people suggesting it might. No harm in running it through a tank occasionally I suppose. The best advice seems to be to stick it on 4th and drive at 60 or so for at least 20 minutes to burn off soot if you do a lot of town driving.

I read somewhere that a bottle of 2 stroke oil with every tank does the same job. Never tried it myself. Best thing that could happen to the dpf filter is for it to be banned and a proper engineering solution put in its place. Whilst the principle of it being there is good the associated expense for the motorist is not. Looks like small engines petrol turbos are the way forward and if the government was actually bothered about emissions from diesels it would have ensured that diesels paid more road tax compared with the same size petrol yet the reverse happened.

The small petrol turgid have now died a horrible death as they were not the messiah that car companies thought they were they have, if you see have been replaced with sensible engine sizes

Worked for me. Performance of 330d had dropped off slightly & a good run with this in tank really upped performance again. Of course the run at high temps may of been enough. But at 3 quid if it acts as a reminder in the garage before the dpf gets blocked then its worth it. Once the warning has come on in a bmw it cant be cleared unless diagnostic equipment or garage visit is involved.

Edited by: "jp1843" 19th Feb
Post a comment
Avatar
@
    Text