Norton
Well-known member
If you can but B20 in it every once in a while. It cleans and quiets the Tdi. I only put Diesel treatment in mine in winter. I ran it on B20 all the time for a couple years until the station closed up. It really ranbetter with bio fuel.
Our older equipment and trucks definitely sound better on B20 lot less engine clacking. I ran B100 for a summer in my Duramax just to test it before we started to run it in our fleet. 0 problems until the colder weather came in the fall gels up real quick. As a bonus it really does smell like McDonald’s!
We use this now and have had good luck. I’ll probably throw a little in the Cummins ever other fill up.