What do yo know about an 09 6.4 Ford Diesel?

carringb wrote:

MX-RV wrote:
While I would agree paramedics are hard on vehicles. I would suggest this is from hours or idiling cool (an ambulance should never be cold) full throttle starts and undercooling. Our suspicion is that the vehicles were resting at a higher temp than was speced resulting in the oil being too thin for proper lube and retention by the rings resulting in severe cylinder wash and excessive oil use. All 3 were 25k km in or more and the rest some still in service were driven to 200k or more with constant attention to oil levels etc. that's deff a towing motor

This is the first I have ever heard of this happening. I would also question wether proper oil has been used. Airport shuttles have very similar duty cycles (except airport drivers probably drive them harder.... i.e treat the throttle like an an ON/OFF switch 100% of the time) and most operators don't even check the oil between scheduled changes. I've also idled mine extensively, sometimes for 20 hours straight in 100F+ temps while providing both stationary power and cool resting place for the crews. I do have to add a quart of oil halfway between oil changes which happen somewhere between 8k and 12k miles.

I saw a 2001 E450 shuttle bus with 130,000 miles and 15,000 hours on it. It would usually be started at 5am and shut down around midnight, 5 days a week, and would top 35MPH once a week. It's still in service and I'd be amazed if it didn't have 18,000+ hours on it by now.