Is AutoRx sold retail? I added Diesel Kleen to the front tank yesterday, and it sounds quieter and has more kick than before. (I'm running bio out of the rear tank and will let it clean on it's own time.) It's hard to say how quieter since replacing the rubber fuel lines, the fuel filter, and changed the oil and filter for the first time in probably a year or so--bought it in April--and the engine has quieted down unexpectedly. Tough to gauge the improvements yet. Things to look for?
Added a few things to my signature but realized I don't know what to add. All factory except rubber fuel lines, a jerry rigged hardline fuel return, new solenoids, relay, ignition switch, and driver's negative battery cable, and new mc and power booster.