Diesels Hassle
I have been going back and forth between gas and diesel. I drive enough miles (often over 20,000 miles per year) to justify diesel and think I would like the extra torque. I also spend time in the R...
Forum Discussion
joeshmoe wrote:RZAR66 wrote:
You're throwing away some serious money changing your oil so often. You're good for at least 10k with that engine.
Says who?
The 6.0 and 6.4 are extremely temperamental about oil/filter and fuel. Mainly due the close tolerances of the HEUI injectors. Not to mention the HPOP shears the oil almost immediately. Combine those two things with the high heat generated, stretching the intervals out too far, you'll be on the side of the road sooner than later.
The recommended OCI for both engines is 5K. If you have a by-pass filter, maybe 7.5K...MAYBE. It's highly debatable. He's doing it right. 10K, and you're looking at prematurely killing the injectors, the turbo bearings, the HPOP. Oil, fuel and filters NEED to be changed on schedule with these engines. Then there's the coolant side of things, but that's a whole other topic.
We do it at 10k or 320 hours for our fleet of 40 or so 6.4 and 6.7 Fords of various types from personnel hoists to flatbeds. We use bulk Synthetic blend/recycled DEO. No problems at all, oil samples come out good. The 6.4's had coolant problems when new and most were covered under warranty. The personnel hoist trucks have a crazy amount of idle hours due to the nature of how there are used and never had fuel dilution problems.
