Unfortunately, this deal is no longer available
Redex Diesel Particulate Filter Cleaner 250Ml £4.00 @ Tesco
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Redex Diesel Particulate Filter Cleaner 250Ml £4.00 @ Tesco

£4£850%Tesco Deals
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Posted 26th Jan

This deal is expired. Here are some options that might interest you:

Redex Diesel Particulate Filter Cleaner 250Ml £4.00 @Tesco
This is DPF cleaner not the standard fuel Treatments that are alos on offer at £2.00 each
Great price for this still £8 in Wilko & £10 in Halfords



Redex DPF Cleaner lowers the temperature the soot burns at, meaning it burns away during normal driving without you having to get your engine very hot.

- Cleans and reactivates DPFs

- Clears soot fast

- No costly repairs
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The best way to clean the DPF is by doing a passive regeneration. Basically get on the motorway and drive in a lower gear so that the revs are 3-4rpm for about 10 miles. Do that occasionally and your DPF will probably last well over 100k without issue. Typically cars with 6 gears will most probably be around 2k rpm @ 70mph. Gear down to 5th and it'll be 2.5 - 3k rpm which will help increase the DPF temperature and aid regeneration. Each time your car regenerates it leaves a little residue which will eventually fill your DPF up and it'll be the end of it's serviceable life. There are a few options, You could have it removed and professionally cleaned out or buy a replacement etc.. More town driving and short journeys = more carbon build up hence why they need regenerating more frequently. More regens = a faster DPF death. Of course other problems can cause them to fill up quicker etc.. Like a faulty injector, turbo or sensor etc.. Sadly the very nature of a DPF being an highly effective filter can mask other faults. Often you'll only know a turbo has gone because your DPF is full all the time due to the excessive smoke etc.. If doing active regens then in most cars diesel is injected into a vapouriser in the DPF which helps increase the DPF temperature. Sadly if you disturb the process then it'll have to redo it again the next time you go for a drive etc.. The diesel often ends up in your sump, Which dilutes the oil and will raise the oil level. It also tends to eat away at seals etc.. causing leaks and potentially many other issues. Changing your oil and filter every 5k will certainly help aid your engine far more than this snake oil will. If you're driving, try not to disturb it doing a regen, Continue driving until it completes. You can usually tell if it's doing an active regen by the sound of the engine or the fans might be running etc.. You can help speed things up by driving in a lower gear and get the revs between 3-4k rpm.

If you must use an additive then you would be much better using HYDRA Fuel 2 EHN 2 Ethylhexyl Nitrate Cetane Enhancer Fuel Additive 1L It's a much better cetane booster and the science behind it is that it can potentially lower the combustion temperature.

Personally, I'm not a great fan of additives and your car really doesn't need them.
goldy1226/01/2020 19:23

How did you manage to get the light off in the end, did you use something …How did you manage to get the light off in the end, did you use something else or take it into the garage. Just interested as my light came on yesterday and I have added this today, if it doesn't work wondering where to go from there



I am technically minded, so connected pc(need special software, but if you know where to look, it is free) to cars ECU and set forced DPF regeneration in 1 click All been done in 15 minutes, DPF light gone off and never ever had any more DPF issues in 42k miles, then sold the car. Garages do the same, just for money. All this Redex crap is just waste of money....
weedavemac26/01/2020 17:42

Good bit of preventitive maintenance. Well worth using these products …Good bit of preventitive maintenance. Well worth using these products every now and again rather than trying to sort a dodgy DPF.I would suggest every 1000 miles or so. There are other manufacturers of these types of products... No idea which one is best. I just used the cheapest at the time.


Every 1000 miles, mate you are seriously misunderstanding diesel systems. If you are constantly relying on something like this you should not have a diesel car, they need good consistent motorway runs to clean themselves out.
16 Comments
From the link the DPF cleaner seems to be £4 & the diesel system cleaner is £2
Can you stick this in at any time? Reading the back of the pack it looks like you only stick it in once you get a warning light on the dash.
luvsadeal26/01/2020 17:14

Can you stick this in at any time? Reading the back of the pack it looks …Can you stick this in at any time? Reading the back of the pack it looks like you only stick it in once you get a warning light on the dash.


This is what it says on the Amazon Site:amazon.co.uk/Red…SGM
"When should I use it?
You can use Redex DPF Cleaner either when the warning light comes on to clear the blockage, or during normal driving to prevent problems occurring."
Just do "Italian tune up" and you clean all soot off -and free.
Redex stuff just waste of money...
luvsadeal26/01/2020 17:14

Can you stick this in at any time? Reading the back of the pack it looks …Can you stick this in at any time? Reading the back of the pack it looks like you only stick it in once you get a warning light on the dash.


Good bit of preventitive maintenance. Well worth using these products every now and again rather than trying to sort a dodgy DPF.

I would suggest every 1000 miles or so.

There are other manufacturers of these types of products... No idea which one is best. I just used the cheapest at the time.
weedavemac26/01/2020 17:42

Good bit of preventitive maintenance. Well worth using these products …Good bit of preventitive maintenance. Well worth using these products every now and again rather than trying to sort a dodgy DPF.I would suggest every 1000 miles or so. There are other manufacturers of these types of products... No idea which one is best. I just used the cheapest at the time.



You will kill your cars engine doing so every 1000 miles. Thats for sure!
But if won't clean DPF ....I have tested this on Ford Mondeo 17Reg with DPF lights on. Done two treatments with no results at all. Must be snake oil and money spinner, nothing more.
weedavemac26/01/2020 17:42

Good bit of preventitive maintenance. Well worth using these products …Good bit of preventitive maintenance. Well worth using these products every now and again rather than trying to sort a dodgy DPF.I would suggest every 1000 miles or so. There are other manufacturers of these types of products... No idea which one is best. I just used the cheapest at the time.


Every 1000 miles, mate you are seriously misunderstanding diesel systems. If you are constantly relying on something like this you should not have a diesel car, they need good consistent motorway runs to clean themselves out.
Cataclean. Every three months. Keeps my qashqai running perfectly.
dexix26/01/2020 18:36

Every 1000 miles, mate you are seriously misunderstanding diesel systems. …Every 1000 miles, mate you are seriously misunderstanding diesel systems. If you are constantly relying on something like this you should not have a diesel car, they need good consistent motorway runs to clean themselves out.


I actually do understand diesel systems. I never relied on this kind of stuff once. I did regular, daily, motorway miles. And , never , not once, did I have an issue with my DPF.
Bokstas26/01/2020 17:54

You will kill your cars engine doing so every 1000 miles. Thats for sure! …You will kill your cars engine doing so every 1000 miles. Thats for sure! But if won't clean DPF ....I have tested this on Ford Mondeo 17Reg with DPF lights on. Done two treatments with no results at all. Must be snake oil and money spinner, nothing more.


If 'that is for sure', would you care to explain why the car did over 230,000 miles and never once have an issue with the engine?
Bokstas26/01/2020 17:54

You will kill your cars engine doing so every 1000 miles. Thats for sure! …You will kill your cars engine doing so every 1000 miles. Thats for sure! But if won't clean DPF ....I have tested this on Ford Mondeo 17Reg with DPF lights on. Done two treatments with no results at all. Must be snake oil and money spinner, nothing more.


How did you manage to get the light off in the end, did you use something else or take it into the garage.
Just interested as my light came on yesterday and I have added this today, if it doesn't work wondering where to go from there
Companys spend millions testing products like this. It may not off solved every dpf issue. But i would think the product would have some affect.
The best way to clean the DPF is by doing a passive regeneration. Basically get on the motorway and drive in a lower gear so that the revs are 3-4rpm for about 10 miles. Do that occasionally and your DPF will probably last well over 100k without issue. Typically cars with 6 gears will most probably be around 2k rpm @ 70mph. Gear down to 5th and it'll be 2.5 - 3k rpm which will help increase the DPF temperature and aid regeneration. Each time your car regenerates it leaves a little residue which will eventually fill your DPF up and it'll be the end of it's serviceable life. There are a few options, You could have it removed and professionally cleaned out or buy a replacement etc.. More town driving and short journeys = more carbon build up hence why they need regenerating more frequently. More regens = a faster DPF death. Of course other problems can cause them to fill up quicker etc.. Like a faulty injector, turbo or sensor etc.. Sadly the very nature of a DPF being an highly effective filter can mask other faults. Often you'll only know a turbo has gone because your DPF is full all the time due to the excessive smoke etc.. If doing active regens then in most cars diesel is injected into a vapouriser in the DPF which helps increase the DPF temperature. Sadly if you disturb the process then it'll have to redo it again the next time you go for a drive etc.. The diesel often ends up in your sump, Which dilutes the oil and will raise the oil level. It also tends to eat away at seals etc.. causing leaks and potentially many other issues. Changing your oil and filter every 5k will certainly help aid your engine far more than this snake oil will. If you're driving, try not to disturb it doing a regen, Continue driving until it completes. You can usually tell if it's doing an active regen by the sound of the engine or the fans might be running etc.. You can help speed things up by driving in a lower gear and get the revs between 3-4k rpm.

If you must use an additive then you would be much better using HYDRA Fuel 2 EHN 2 Ethylhexyl Nitrate Cetane Enhancer Fuel Additive 1L It's a much better cetane booster and the science behind it is that it can potentially lower the combustion temperature.

Personally, I'm not a great fan of additives and your car really doesn't need them.
goldy1226/01/2020 19:23

How did you manage to get the light off in the end, did you use something …How did you manage to get the light off in the end, did you use something else or take it into the garage. Just interested as my light came on yesterday and I have added this today, if it doesn't work wondering where to go from there



I am technically minded, so connected pc(need special software, but if you know where to look, it is free) to cars ECU and set forced DPF regeneration in 1 click All been done in 15 minutes, DPF light gone off and never ever had any more DPF issues in 42k miles, then sold the car. Garages do the same, just for money. All this Redex crap is just waste of money....
Had Octavia before. Sold it due to constantly blocked PDF because lots of short trips on cold engine. Now own passat B7 and using VAG PDF to monitor PDF so I didn't missed burning stage yet
39773597.jpg
Edited by: "jakbli" 27th Jan
jakbli27/01/2020 11:45

Had Octavia before. Sold it due to constantly blocked PDF because lots of …Had Octavia before. Sold it due to constantly blocked PDF because lots of short trips on cold engine. Now own passat B7 and using VAG PDF to monitor PDF so I didn't missed burning stage yet[Image]


If you do lots of short trips on a cold engine you shouldn't buy a diesel with DPF!
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