Originally Posted By: SteveSRT8
Skyship,
Coked up rings happens in almost any engine eventually. I've seen ring packs with less than 100k miles that were completely stuck in the grooves with hard carbon/coke. This was on a late model port fuel injected motor.
If you could see the pistons out of a late model new gen Hemi you'd see carbon/coke as well. Most modern engines might run leaner, but many still run pig rich to control knocking and egt's, so they still carbon up unless the driver gets out there and blows them out HARD on the freeway regularly!
Steve why bother feeding him? In Skyship's world you'd either scrap the engine or rebuild it, after all an additive like Kreen for a piston soak is a no-no. After all the car makers design the perfect engine, and the oil companies make the perfect oil. All an owner has to do is follow the owners manual and they'll never, ever, run into a problem like the one you've mentioned, or the one bama mentioned in the service bulletin. These conditions can't exist if you follow the OM, and use a premium synthetic oil can they? Ask Trav if he's ever seen a well cared for engine with problems.
Skyship,
Coked up rings happens in almost any engine eventually. I've seen ring packs with less than 100k miles that were completely stuck in the grooves with hard carbon/coke. This was on a late model port fuel injected motor.
If you could see the pistons out of a late model new gen Hemi you'd see carbon/coke as well. Most modern engines might run leaner, but many still run pig rich to control knocking and egt's, so they still carbon up unless the driver gets out there and blows them out HARD on the freeway regularly!
Steve why bother feeding him? In Skyship's world you'd either scrap the engine or rebuild it, after all an additive like Kreen for a piston soak is a no-no. After all the car makers design the perfect engine, and the oil companies make the perfect oil. All an owner has to do is follow the owners manual and they'll never, ever, run into a problem like the one you've mentioned, or the one bama mentioned in the service bulletin. These conditions can't exist if you follow the OM, and use a premium synthetic oil can they? Ask Trav if he's ever seen a well cared for engine with problems.
