The product you bought is not approved to use in the 6.4 engine but can be used in 6.0s, 7.3s and prior engines. In other words it is not approved to use in engines that require the use of ULSD.

 

OK on the fuel, but outside of coming in a pretty container with a label why do you trust it to cure all the ills that the product supplied by big oil may have? Why do we trust the gasoline and not the diesel fuel?

 

Ryan can answer this better than I but, I'll take a stab at it.

To date, Octane levels have been more heavily regulated from both a state and Federal standpoint. Typically, regular unleaded gas has a minimum octane of 87 whether you buy it in Texas or Wyoming it is the same. Conversely, with the exception of EPA mandated areas like the DFW area, regular diesel fuel can vary from distributor to distributor. One may offer regular diesel with a 40 cetane rating and another may furnish it with a 44 rating.

BTW: Just because a supplier may offer a Premium diesel at a higher price...it does not necessarily mean that it has a higher cetane value.

 

OK on the fuel, but outside of coming in a pretty container with a label why do you trust the additives to cure all the ills that the product supplied by big oil may have?

 

I don't expect it to cures all the ills that big oil may or may not have. I can only address issues that I may have control over. One was to use a quality fuel additive that hopefully would provide a cascade effect of good things for my engine.

Reputation of the company, experience and testimonials of others before me...then my own experience. I started using DK @ 4,000 miles and never had any issues with my 6.0....never blew any smoke...ever...even when I had a programmer.

What are you looking for here? Really?

 

"Reputation of the company, experience and testimonials of others before me...then my own experience. I started using DK @ 4,000 miles and never had any issues with my 6.0....never blew any smoke...ever...even when I had a programmer.

What are you looking for here? Really?"

Well we have never used any fuel additives in our 6.0 and have never had any issues either. In fact we average 150,000 miles per year on 15 diesels and havn't used any fuel additives in 20 years.
I just wonder why we assume the fuel to be lousy and assume the additives to be able to make it good?
I know there are a lot of people out there who are out to make some big bucks selling additives, playing to peoples fear of ULSD just like they did when we went to LSD.

 

I haven't seen the reputable companies play to, or try to create, fear. Standadyne, DK, Howe's etc...bascially stand on the merit of their own product strength...not on the weakness of others. Some, however, do try to create fear...which can be cured, of course, with their product(s). Those are the ones to steer clear of and usually are challenged here.

As I mentioned before, the quality of fuel is diverse. Some time ago I read that the 6.0 was designed for optimum performance at a minimum cetane of 46 and that the national average cetane rating is either 40 or 42.

Using quality fuel additives can't hurt the engine or components. While I urge folks to use it...it still remains a personal choice, either way.

The 9 county North Texas area distributors are mandated by the EPA to provide a minimum 48 cetane rated fuel. Maybe your area has the same or similar mandate.

In any case, it is good to see that you have had excellent 6.0 experience without it.

 

One of two possible issues:
1.Bottle contained something that was not compatible with the 2008 MY 6.4L engine or
2. Bottle did not have label that stated that there was NO sulphur in the bottle.

I understand #2 is a labeling requirement from EPA. Ford is updating the formula and a new version compatible with all diesels is coming out. The outdated stuff is on sale at a lot of suppliers now.

RoyC

 

I have used Diesel Kleen (gray bottle) in every tank since the end of break in period. I have found that DK inproves mileage a tad, quiets cold starts a bit, and seems to agree with my truck. We go to great extents to take good care of our trucks. I honestly don't mind putting a "dose" in every tank. DK is readily available, is not overly expensive and seems to be cheap insurance. I thinks it's an individual choice. Do what you want.

Heck, some of us use synthetic oil every 3,000 miles. How could anyone rationally explain the use of synthetic EVERY 3,000 miles? You can't. It's just a choice.

Fill it up. Run it hard. Enjoy the ride.

 

Pretty much hit the nail on the head Keith.

The precise reason is in your next post on the 46 cetane value minimum for the 6.0. With the emissions (lean burn) comes the headaches of fuel quality as related to in BTU's. Here is an example for you.

If you dropped the hp numbers to 200 on the 6.0 it would never know the difference between 40 and 46 cetane. However by increasing the hp output of the motor, you are really relying on everything being as close to perfect as possible, or as the engineers designed it. Sway from that and "you get what we had here last week" (really last 3 years) strange drivability issues, not constant, nor area specific.

The forum has done 100's if not 1000's of posts on this subject, and let me say this again 99% is not a coincidence. Which is the number of people that run additive all the time that have fuel issues. While its not exact science, for all practicle purposes its "close enough".

Oricharger, you may be one of the lucky ones that gets fuel from a "jobber" that holds higher standards than some of the others. Your fuel may come from a tank battery via pipeline which usually is much better quality fuel due to being "handled" less times and exposed to contaminants. Since I have been up here in the Ark La Tex, I have had no fuel quality issues. However I run powerservice greay at the max dose every tank, so its hard to say. It surely cannot hurt.

 

I do know I am getting quality fuel from a quality supplier, from my experiance I am confident in the fuel and wary of the additives.

OK, but can you be certain that some of the people who "run additive all the time that have fuel issues" aren't really having additive issues rather than diesel fuel issues?

 

Here's a ? At what temp. do most of U switch from the Grey to White bottle of PS?

 

32 degrees

 

Well then I would recommend that if you can't use the product with confidence.... Don't.

We have provided as much technical info as we have available here. We have provided testimonials based on personal successful experience. There really is nothing more that can be added here.

You might want to contact the various fuel additive mfg companies as it seems they are the only ones that may be able to satisfy your concerns...since none of us can.

 

You might want to check out Howes, they gaurantee it in writing.