Quote:
Originally Posted by Kev0607
Not really, cleaning sprays don't really work. I wouldn't bother wasting your time with them. There's no need to use them if the car is driven properly...
You need to bring the car on a decent motorway drive for at least 20 minutes at a constant speed and let it clear the soot naturally via DPF regeneration. If the car isn't regularly driven on the motorway, you should do this at least once a month to prevent soot building up and blocking the DPF.
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Very true , and you don't need a motorway just a decent run at 50 mph in top gear for 20 + minutes is enough to self regenerate if it is needed.