Looking at a 2008 F250 6.4l

Many happy ovners out ther that has had no problems.
Depends on price and warenty.
Frank

I owned a 6.4 diesel and never had a single issue with it. Ended up selling it cause we wanted a crew cab truck.

FishOnOne wrote:

Grit dog wrote:
If Fish says pass on a Ferd then you know it's a pile of schitt!

Fish does not recommend any dpf equipped diesel without def including the first gen 6.7 cummins which was known to have problems.

I concur with that statement!
Just flipping you some lip........all in fun!

The 6.4 was a huge step above the 6.0 in terms of reliability and issues. The biggest issue with the 6.4 is poor fuel mileage stock. If it were me, and you live an area without emissions testing, I'd save the money on the warranty for a delete package. You'll get better fuel mileage than current diesels and really it's a reliable engine and tranny combo deleted. As long as you are reasonable with your tune, get a custom SCT programmer and tune.

If you keep it stock you'll get in the 14-15 mpg area unloaded. You could get a newer gas engine for the same price and similar mileage.

It's a hard decision. The 6.4 is a way better engine than people give it credit for once you delete everything. But resale isn't the best when you sell it.

Grit dog wrote:

FishOnOne wrote:

Grit dog wrote:
If Fish says pass on a Ferd then you know it's a pile of schitt!

Fish does not recommend any dpf equipped diesel without def including the first gen 6.7 cummins which was known to have problems.

I concur with that statement!
Just flipping you some lip........all in fun!

LOL...

Ironically there's a guy a work who has a 09 6.4PSD that is pushing 300k miles. The only thing repaired on the engine was a idler pulley and the transmission bit the bullet at ~250k miles with the factory transmission oil still in it which reflects the overall maintenance performed on this truck. :E

The truck is driven mostly highway miles in which the first gen emissions can tolerate, but throw in a lot of city driving/idling and that's when the problems really happen.

One of the big knocks on the 6.4 is the fuel system gets contaminated with water and there goes 5-10k to fix it. Check the fuel water separator, if it's full of water don't assume they always checked it with every oil change. Also add an after market F/W seperater and better indicator. Ford still has a very bad rap for their engines. Go Cummins or the LBZ duramax

2001400ex wrote:
The 6.4 was a huge step above the 6.0 in terms of reliability and issues. The biggest issue with the 6.4 is poor fuel mileage stock. If it were me, and you live an area without emissions testing, I'd save the money on the warranty for a delete package. You'll get better fuel mileage than current diesels and really it's a reliable engine and tranny combo deleted. As long as you are reasonable with your tune, get a custom SCT programmer and tune.

If you keep it stock you'll get in the 14-15 mpg area unloaded. You could get a newer gas engine for the same price and similar mileage.

It's a hard decision. The 6.4 is a way better engine than people give it credit for once you delete everything. But resale isn't the best when you sell it.

Negative ghost rider!
The 6.4 was par with the 6.tow at best.
More emissions which gave them fits, terrible fuel economy, more costly to work on, still must remove the cab for major repairs, fuel pump issues, etc. Hardly an improvement. Probably why the 6.4 was only in production for barely 3 yrs vs the 6.tows just over 5.

Greene728 wrote:

2001400ex wrote:
The 6.4 was a huge step above the 6.0 in terms of reliability and issues. The biggest issue with the 6.4 is poor fuel mileage stock. If it were me, and you live an area without emissions testing, I'd save the money on the warranty for a delete package. You'll get better fuel mileage than current diesels and really it's a reliable engine and tranny combo deleted. As long as you are reasonable with your tune, get a custom SCT programmer and tune.

If you keep it stock you'll get in the 14-15 mpg area unloaded. You could get a newer gas engine for the same price and similar mileage.

It's a hard decision. The 6.4 is a way better engine than people give it credit for once you delete everything. But resale isn't the best when you sell it.

Negative ghost rider!
The 6.4 was par with the 6.tow at best.

More emissions which gave them fits, terrible fuel economy, more costly to work on, still must remove the cab for major repairs, fuel pump issues, etc. Hardly an improvement. Probably why the 6.4 was only in production for barely 3 yrs vs the 6.tows just over 5.

X2. Most Ford techs say they would rather have a 6.0L than a 6.4L which really says something. We have a couple of 6.4L trucks at work and they have been terrible with tons of emissions problems and constantly making tons of oil.

FishOnOne wrote:
I would pass on it. Find you a diesel equipped with def.

If FISH says "PASS" I would as he is a die hard Ford guy!!!

Greene728 wrote:

2001400ex wrote:
The 6.4 was a huge step above the 6.0 in terms of reliability and issues. The biggest issue with the 6.4 is poor fuel mileage stock. If it were me, and you live an area without emissions testing, I'd save the money on the warranty for a delete package. You'll get better fuel mileage than current diesels and really it's a reliable engine and tranny combo deleted. As long as you are reasonable with your tune, get a custom SCT programmer and tune.

If you keep it stock you'll get in the 14-15 mpg area unloaded. You could get a newer gas engine for the same price and similar mileage.

It's a hard decision. The 6.4 is a way better engine than people give it credit for once you delete everything. But resale isn't the best when you sell it.

Negative ghost rider!
The 6.4 was par with the 6.tow at best.
More emissions which gave them fits, terrible fuel economy, more costly to work on, still must remove the cab for major repairs, fuel pump issues, etc. Hardly an improvement. Probably why the 6.4 was only in production for barely 3 yrs vs the 6.tows just over 5.

That's why I said If you delete the emissions. If not, you get terrible mileage and Ford did a terrible job with emissions.

The 6.0 was from 2003-2006. The 6.4 was from 2007-2010, same number of years. The 6.4 was stopped because of new emissions required for 2011. Ford decided to stop using international and build an in house engine for the 2011 year as they lost their butt in warranty claims and reputation from the 6.0 and 6.4.

I owned my 6.0 and I actually miss the way it drives when I programmed it, it drives better than current Duramax that if deleted and tuned. My 6.0 has so many other problems I had to get rid of it. I know many people that own 6.0/6.4 and both are great engines once you take care of them.

Point is, if you want a diesel on the cheap, and you know what you are getting into, the 6.4 is a good engine. If you don't want to mess with it, spend the money on a Duramax or Cummins.