[fishdmax]

My 2002 (build date 12/01) has started to knock at idle after the engine is warmed up( sounds like a Dodge). The truck just turned 40K and the knock started about 38K. It doesn't do in all the time, but it seems to be getting louder when it happens. I've been using Delvac 1 synthetic since 15K and use FPPF Total Power and cetane booster every fill up. I change the fuel filter every 10K. Any suggestions


SteveEdited by: fishdmax

 

[sixfoot]

Is it the classic "tick" that just about everyone has?

 

[fishdmax]

No, I had the "tick". It went away when I changed to Mobil 1