FYI -- The diesel clogging issue is not just for RTVs but most all diesel powered engines. As our inept environmentalists mess with our fuels (and ruin our property) ingenious ways are being found to help. Of note is cleaning exhaust system using UREA to burn off soot. My new Passat diesel has a 5 gallon tank of mostly urine (ad blue) that is sprayed into the catalytic converter when engine shuts off. This system is being looked at for other diesel engines like our RTVs and tractors. The good news is I can get upwards of 60 mpg flat out a/c on at 65 mpg. The bad news is i have 5 gallons of piss in my passat. I wonder if we could use our own. Would be handy for many reasons on the road or in the field.