the 2 instances that really stand out are when i had a customer turn up for us to price up a dpf for a Toyota Avensis after being quoted by the main dealers £1800, i put in a bottle of the DPF cleaner and the fuel additive and had the driver go off and use the remainder of his fuel which i believe was around the half way mark, about 2 weeks later he returned with a case of beers as this had done the job and the light had not returned. i think your rep was wrong when he said it raises the temp of the DPF to help the burn, im sure i read somewhere where it lowers the temp at which the burn can take place. i would also think that its effectiveness would depend on how far the blockage went, if it were blocked to such an extent where gas flow was reduced to a certain point then so would the effectiveness of the product. i have also used it on my own vehicle which did the same journey every week driven in the same way etc and there was a 3 mpg improvement. only small i know but a definite improvement. i also have a sun carbonvac machine which is an excellent tool but rarely used since using forte.
i think much of its success or lack of would be dependant on the driving of the vehicle, the guy with the Avensis took a long dive to Manchester on the day i put the jollop in his tank this may explain the differing opinions on this product.
cheers chris
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