What do yo know about an 09 6.4 Ford Diesel?

Lumpty wrote:
I had a '10 6.4 F350 King Ranch that Ford bought back after 18 months and 24,000 miles, the last three months it basically sat because it was either in the shop or we would not trust it when it was out. From 5,000 miles on, it had a total loss of drive problem on 5-4 downshifts, melted pistons, had leaky injectors, and the primary turbo was a problem of some sort too. Over $20,000 in warranty work on a totally stock truck that was used well under capacity, only towing about 7500 lbs.

The '11 6.7 Lariat that Ford put me in as a replacement has been 100% trouble free for 2+ years and 25,000 miles. Much better drivability with the 6.7. the 6.4 was a laggy, doggy POS until it spooled up its 33psi (!) of boost.

I also have a 2v 2011 V10 in an E450 chassis Class C. It has been used super hard (20,000lb GCW frequently) since new, and was using a fair amount of 5w-20 Motorcraft Synthetic blend at first, around a quart per 1,000 miles. Now that it is up to 17,000 miles, for whatever reason the oil consumption has dropped off dramatically, to about a quart every 2,500.

While we like the 6.7 alot, it is likely my last diesel truck.

This. Very sad story with what seems like a happy ending! I can under stand not trusting a 6.0 or 6.4! I have a 01 Ram with 267,000 miles and trust it fully!
I believe that Ford has taken the right step with the 6.7 and seems to have no more issues than the other two.