sorry, gotcha now took it the wrong way. yeah bottom line it's a p-poor designExactly! It’s sarcasm. I’m not a cp4 or 4.2 fan. There is a lot of young Duramax tuned coal rollers around along with the Dodge boys with their mirrors popped out and their big exhaust tips. There’s a lot more of the Isuzu’s sitting in the driveways with these boys that have had a failure and can’t afford to even fix their truck from the fuel system being damaged. Their all getting the same type of fuel is my point at the pumps/fuel stations. O issues with the CP3. It’s more than just lubrication.