Originally Posted By: stang5
Originally Posted By: Rick20
Stang5,
Something is not adding up here. The valve train was clean at 100K. Then ran amsoil(very good oil), until 142K and at that time the valve train was filled with gooey stuff. I assume that the amsoil was run for acceptable oil change intervals and not run for 42K. So what caused the motor to gum up on the top end in the first place?
Sprintman has a plausible theory that the motor is running cooler than spec. Any chance of any coolant disappearing slowly over time? Any blockage in the tubing that your pcv valve is attached?
IMO, it sounds to me that the gooey stuff is forming as fast as you can clean it.
I ran the Amsoil at 7K miles max no more than 1 year..Im not loosing coolant, I have zero oil consumption on my 4-5K miles OCI..
check the pcv tubing all clear
Pablo, his oil change intervals are in this thread.