air inlet. The UK distributor, Powerflow Ltd, explains that this cleans the direct injection air intake, including swirl flaps, too. Loosened contamination from these parts enter the DPF to be burned. While this may sound counteractive, the cleaning solution survives the combustion process and, aided by engine heat, breaks-down the resultant carbon within the DPF. While cleaning a contaminated intake will help to reduce DPF loadings, BG Products advises that the operation should include a dose of its BG 245 injector/combustion chamber cleaner fuel additive. This not only cleans the piston rings and enhances their sealing properties but also restores the fuel injectors' atomisation patterns, both of which may have been compromised as a result of regular short trips. An oil flush and change should then follow, with BG's EPR oil flush additive. The results speak for themselves and Powerflow reports that fleets that have followed this schedule have seen DPF issues fall by over 90%. The company reports that, for safe use and to avoid any risk of DPF thermal runaway, it sells its DPF machines only to garages that use scan tools that permit monitoring of the exhaust gas temperatures.
BG Products' 9300 machine cleans the intake and DPF together. Its typical monthly rental rate is £140. A smaller diesel intake machine is available for £30 per month, albeit with reduced functions than the 9300.
A further advantage of aligning yourself with experienced suppliers of DPF cleaning equipment and consumables is that they are designed not to be excessively aggressive. BM Catalysts reports that many cleaning processes are not tested to see how they affect the internal precious metal coatings. The company also highlights that chemical treatments require product knowledge and training if critical damage is to be avoided. For example, it found that certain water-based
DPF'S
OE quality that does more, for less
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With Carwood’s Ca new or OE-approved reman, you’ll get a competitively priced, sustainable part that performs just like the OE - sometimes even better - backed by expert technical support. For a best-practice, right-1st-time vehicle repair that you & your customers can trust. That saves you both time & money. And is kinder to the environment. Now that’s what we call, doing more, for less.
Fuel injection
DPF cleaning
Turbochargers
HVAC
Rotating electrics
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