downtheroad wrote:
To the original poster. I have the exact same motor in my truck as you do (LBZ) and have driven the daylights out of it...towing, daily driver, short grocery trips, etc.
I have never put a drop of anything other than fuel in the tank and have never spent a dime on any repairsother than the normal oil and filter change maintenance stuff.
Go figure.
Thanks, but I am going to use an additive based on what I have read about todays ULSD. If there's any benefit at all to using an additive, I'm going to use it. I can tell a difference in fuel mileage and it makes the engine quieter. This is enough for me to use it.
The purpose of this thread was to see if the additives in the list were actually the best, not weather or not I should use anything at all.