I'm game to try this ABRO additive out one time and post my findings here. Question is, is it likely to cause any damage? This is my first diesel and I'm still learning about the system and maintenance aspects. In the recent 1000 or more km, I've not ventured out on a highway and never got a chance to rev the engine at all. After reading here on TFI yesterday about revving the car once in a while to clean out any deposits, I tried this today, on a 100m stretch with low traffic. Only got a chance to max out in 2nd gear though. I was surprised at the result: I left a veritable cloud of black smoke behind me when I accelerated hard. Never seen that before. I then tried again on another stretch a kilometer later, but this time there was no black cloud. Seems like this rev thingie does have some very positive effects in cleaning! Comments please.