JQuiroz
New member
I hear you...I was not aware of it prior to purchasing the 4R but now that I have seen everyone else talking about it, and the fact that lubricants quiet the engine now tremendously, I am very happy with the truck. The fuel additive is a plus all around, I now get a little bit better gas mileage (1-2 Mpg overall) and it feels and sounds smooth and quiet. Now I can dedicate some time and $ to mods!!