Anyone Use Power Service Cetane Boost

when I bought my used 05 Cummins Ram it had 22k on the clock. It immediately started an intermittant problem of a very very rough idle on start up. This problem caused me to take it to the dealer for service where they replaced two injectors. It continuted to do it occasionally. The problem would go away after a very rough idle for probably 30 seconds. It did this when the engine was hot or cold.

I started using Power Service in the gray bottle and the problem went away after the first tank full never to return again. This has been 4 years ago. I believe in this product and have used it every fill up since then.

OK...

Post trip experience using PS Gray bottle.
I added 18 oz to 36 gallons of petroleum diesel before departing.

Just installed shocks on the truck.
Had front of the TV aligned.
80 lbs in the trailer tires.
Hauled maybe 20 gallons of clear water.

Climbing up I-80 to Reno we were holding 55 most of the way in 6th gear.
Normally downshifting is required in a few spots to stay above 50 mph.

Filled the truck in Susanville before pulling up and over to the lake.
Last time up there at 202 miles we took 24 gallons to full.
This trip at 204 miles the truck took 20.39 gallons of fuel.

Added another 10 oz of Power Service at the pump.
I checked under the hood while we camped and found the truck oil level down a quart and topped up.
The air filter gauge was in the red also so I changed that.
On the trip home we averaged 13.4 mpg and of course 35% of the distance is downhill.
I was quite surprised we held 55 mph from Truckee to Castle Peak in 6th!
It's usually 45\50 mph in the truck lane sitting in 5th gear.

Overall the Cummins seemed as though it struggled much less towing our usual estimated weight.

Next trip out I'll make sure everything is topped so I can get a little better comparison with PS.

FishOnOne wrote:
The only fuel additive that actually improved fuel economy in my trucks is the Motorcraft product and that was in my 6.0 psd.

My '12 6.7 psd it doesn't seem to improve fuel economy on a already steller fuel economy performer as is.

When it come to increasing MPG, I don't think that is the purpose or claim of most fuel additives. The purpose is to add additional lubrication to the low sulfer fuels. I use the opti lube products on my Duramax and of course I see no measurable results, only faith that it is doing what it was designed to do.

I have a 01 7.3 PSD and use it pretty regular. I am pretty anal about checking my mpg per fillup and it does help on lubricity and mpg, a little about .5 mpg but it helps the injectors and the vehicle needs the extra lubricity.

john&bet wrote:
After all this discussion I will not own a Ford Diesel. If ford could not design its new engine to function with our current fuel,since they started with a clean sheet after the reduced sulfur, then they did not use thier big brain power to its fullest. JMHO.

I think you are mis-interpreting what it says in the Ford owner's manual. Nowhere have they said that their 6.7 liter engine cannot operate on the standard ULSD that you and I purchase at the pump every day. Their comment in the manual (note it says CAN not MUST) is just a way to sell Motorcraft brand cetane improver and anti-gelling additives. They want a piece of that business rather than giving it to Power Service, Howes, etc.

Similar example. My Honda dealer tried to sell me injector cleaning and a new timing belt at 30K miles on my Accord, even though the manual says to change the timing belt at 105K miles. Does that make the Honda engine a poor design? Uh.... No. It means they are trying to sell parts and service to folks who do not know any better. This is not really rocket science here folks.

john&bet wrote:
After all this discussion I will not own a Ford Diesel. If ford could not design its new engine to function with our current fuel,since they started with a clean sheet after the reduced sulfur, then they did not use thier big brain power to its fullest. JMHO.

It is not Ford. They designed what I think could be a very good motor.

The German company Bosch is the culprit here. Ford and GM both wanted horsepower honors with their Powerstroke/Duramax engines and Bosch sold both high pressure fuel pumps that could produce such power.

BUT Bosch fumbled in that they built the pump to meet European diesel fuel standards, which are better than the hogslop diesel we have here in the U.S.

Mind you, before someone starts talking price differences US versus Europe in diesel fuel, Canada has the same diesel standards as Europe. And Canadian diesel price is not a huge amount higher than ours.

I say blame whoever had a role in setting such poor standards for the U.S.

After all this discussion I will not own a Ford Diesel. If ford could not design its new engine to function with our current fuel,since they started with a clean sheet after the reduced sulfur, then they did not use thier big brain power to its fullest. JMHO.

I use Diesel Kleen (grey bottle) occasionally, not on every fill-up. Not sure if I notice a difference in operation but I figure a little can't hurt. Certainly hasn't caused any harm as stated by a previous respondent (fuel gelling).

BTW, the owner's manual for my 2007 Dodge diesel says that fuel additives aren't recommended or required.

I used to use PS cetane boost then switched to Opti Lube and like it. As far as fule mileage improver, can't say, but the evidence of the increased lubricity is worth it as stated the ULSF has changed the need, especially with older trucks.

retired-tech wrote:
per ford use as much cetane boost as you like but not anything with anti gel. the anti gel works weird with the wax in the fuel. the higher the cetane the better the burn.

I don't recall ever seeing anything like that from Ford. Anti-gel additives are okay, and maybe even necessary. However, Ford says to not use any additive with alcohol. Since alcohol disperses into water and fuel, it will cause water in the fuel to pass through the filters and will damage the injectors. Some old style anti-gel additives were mostly alcohol, but I'm not aware that any of those even exist these days. All the manufacturers are pretty clear about no water and no alcohol allowed. No dispersants allowed. The goal is to separate water out, not disperse it into the fuel.