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I tried using DXP and to be completely honest I didn't notice a huge difference - but then I've been a bit pedantic about servicing etc and my nearly 400,000km is still on the original injectors showing no signs of needing any attention.We did have a very slight (almost unnoticeable) hunting start to happen (idle surging by 20-30rpm regularly). There were no power issues, it still pulled the van well, started easily - but we had to use Nulon diesel fuel injector cleaner because my preferred brand - Liqui Moly Fuel System Treatment - was not available at the OTR servo at The Bend Motorsport Park where we went for the Supercars round recently.The hunting disappeared fairly quickly so it's probably fair to say that Nulon and Liqui Moly treatments will be composed of similar things. I would not be surprised if others were also very similar in composition.
I tried using DXP and to be completely honest I didn't notice a huge difference - but then I've been a bit pedantic about servicing etc and my nearly 400,000km is still on the original injectors showing no signs of needing any attention.
We did have a very slight (almost unnoticeable) hunting start to happen (idle surging by 20-30rpm regularly). There were no power issues, it still pulled the van well, started easily - but we had to use Nulon diesel fuel injector cleaner because my preferred brand - Liqui Moly Fuel System Treatment - was not available at the OTR servo at The Bend Motorsport Park where we went for the Supercars round recently.
The hunting disappeared fairly quickly so it's probably fair to say that Nulon and Liqui Moly treatments will be composed of similar things. I would not be surprised if others were also very similar in composition.