Hello all! I'm new to the 6.7L forum as my '17 F350 should be arriving in the next couple weeks. I'm coming from an '08 F250 with the 6.4L. I generally used Power Service Diesel Kleen at every fuelup (unless it was biodiesel) as it seemed to get slightly better MPG and the truck ran a bit quieter and smoother sounding. Question is, do you guys run it in your 6.7L trucks? I know there's a lot of debate on whether it's necessary or not, and I've seen a few threads, but didn't find many specific to the 6.7L.

So, whatcha got? Do you run it? Do you notice any difference in fuel economy or seat of the pants feel?

 

I use the Opti_lube occassionally. Not very consistent about every fill up. But during really cold weather and when I do a complete fill up vs topping off a half empty tank I add some.

I have never really seen a fuel mileage bump. So I'm not a believer in it giving me better mileage. Mostly looking for Lubrication for the fuel pump and injectors, Anti-Gel in the winter, a bump in Cetane for a cleaner or more complete burn, which hopefully extends the life of my DPF in the exhaust.

I've also run a few bottles of Power Service thru when I found them on sale. I didn't see any difference with that product vs Opti-Lube.

 

I've used Stanadyne pretty religiously in my 2005 6.0, 2011 6.7, and now my 2016 6.7. Cant really say I notice anything other than my pocketbook is lighter. I've mainly stuck with it due to the increased lubrication properties, which the high pressure fuel pump in the 6.7s can benefit from.

 

I use the Stanadyne red and blue, depending on season, for not only lubricity but only for the de-emulsification abilities to help coalesce the water so it can be drained. PowerService tries to emulsify the water and force it pass the filter so the engine can burn it.

 

Never added a thing to my fuel. Over 180,000 miles. Travel the Midwest. Coldest weather the truck has been in was -40F. Started right up with out the block heater as there was no outlet where I was staying. Knock on wood I have never had a fuel related issue. Change my fuel filters every 20,000.

 

I use the Power Service's Diesel Kleen in my '13 without any problems at all. I use the same in my 7.3L Excursion and used it in my '10 6.4L F350 too. No problems to date.

 

I use the Ford PM22/23 every fill up religiously. Don't seem to notice any fantastic mpg from it. As stated above mainly use it for the added lubrication properties. Just have watch the cardboard disc in the cap. Almost got myself with that one about a month back.

 

Thanks for the info all. Sounds like it shouldn't hurt, but not really a necessity. I will likely finish out what's left of the bottle I have (maybe add it every other tank) and see how she does. If I don't notice a difference, I likely won't spend the money on another bottle.

 

I've used more PS than anything else - I agree with what Jon/PH posted. In the summer I used to run Lucas, it seems to quiet things down a little. When I go on my long drives I run additives, just in case.

Chevron stations by me have Power Service added already... So there is some food for though. (no, I don't work or own stock in power service)

At times, when I know its going to be sub zero - I do like a little extra anti-gel for "protection".

Honestly, if you know you are getting good, fresh fuel, running additives is probably a waste. In my case, my fuel is barged up and while I haven't had an issues or noticed anything odd... I prefer to not take chances. Additive will help borderline fuel quality, if it's full of water or bad, nothing will help that out. I don't drive a lot or for a living so the extra penny a mile it costs to run an additive isn't gonna kill me.

 

I use a clear, see-thru half gallon jar to visually inspect a fuel sample each time before fill up. I've driven away from a couple big name places that had cloudy (emulsified water) fuel. I use a lubricant additive too, but IMO it's more important to keep out water.

I never inspect gasoline, but fuel systems on gas pickups and cars don't cost near as much and their injectors don't operate at 20,000psi and fire 50 times per second.

 

I have used the Ford product and the Diesel Kleen stuff. In the winter I try and use it in every other fill up and a little less in the summer. I see about 0.5 MPG better with the Diesel Kleen and not much difference with the Ford stuff. But I like to regularly use one or the other to protect that 10K $$$$ engine.

 

Ditto, since day one.

Rob

 

The 6.7 injectors regularly see 40000 psi...

I agree in keeping the water out...

 

Yeah, I figured that. My diesel is a hair longer in the tooth than a 6.7.

 

Ditto to Rob's ditto