regeneration
its not critical to give your car a good thrashing, as long as you retain over 2500 rpm, do a continuous run with out droping below 40mph, and keep the car in 4th gear, it will regenerate,you will not be aware this is happening. with the exception of your fuel not going as far, because more fuel is injected into the engine by the ecu when it sences the filter needs cleaning, this is done to raise the tempreture to 600c,in order to burn off the soot
however,should your diesel particulate filter warning light come on,do as above until the warning light goes out, regeneration is now completed,its best to check your oil level after this is done, as excess fuel could accumilate in your sump above the maximum fill mark.
the purpose of the cleaner additives is for cars doing low urban journeys, and who do not have close access to a motorway or duel carrigeway to clear the warning light, the additive is claimed to do this, as it contains cirium which forms a catalyst around the soot which lowers the soot burn off tempreture to around 350c
jlm additive also claims to act as a preventative measure,
lowering the tempreture that the soot burns off at, and it also increases the fuel gas tempreture.
