View Full Version : Diesel Additives

Jerry White
06-30-2007, 11:08 AM
Looking for suggestions for fuel additives to supplement the new low sulphur diesel. Anyone have a favorite?

F250 7.3L

06-30-2007, 07:59 PM
I don't use additives but through my many hours of reading, Stanadyne and Diesel Kleen seem to be the most popular. Diesel Kleen I think wins out because most Wally Worlds carry it and easy to get. ---Ken

06-30-2007, 09:21 PM
I use Stanadyne in my 6.0 PSD. Works fine, no issues with the new fuel.


Uncle Rog
07-01-2007, 05:44 PM
Jerry, havn't tried any, going with the 100k mile warranty!

07-01-2007, 08:43 PM
I have been using Stanadyne from day one.

07-02-2007, 04:38 PM
Power service (gray bottle) with MMO. Three parts PS to one part MMO. Dose at a rate of 3/4 oz mixture per gal of fuel. Have better idle (smooth) and improved fuel mileage!

12-13-2008, 09:26 PM
I drive a 2002 Ford F250 with a 7.3 Power Stroke and I have been adding about a quart of 2 cycle oil to each tank of fuel. I have been doing this since shortly after buying the truck two years ago. It runs a lot smoother and seems to have more power with the two cycle oil. Make sure it says 'ashless' on the container. Costs about $8 a gallon at Walmart.

I read about adding 2 cycle oil on an internet forum when I first bought my truck. A lot people wrote that it worked for them so I figured what the heck, I'll try it. Glad I did. It's supposed to help keep the injectors lubed. Research some of the diesel forums before you try 2 cycle oil on your rig. I seem to remember reading that it helps older engines more than the newer ones that are designed for the lower sulfer fuels.

Ken Gordon
Fairbanks, Alaska

12-14-2008, 07:00 AM
I drive a 2005 Ford F350 with the 6.0 Powerstroke, in it I use Motor Kote it is sold at Flying J's or on line at Motorkote.com. it comes in a 8 ounce bottle and I use a third of a bottle per tank in my 38 gallon tank.
I have been using it for over a year now. Also they have a product that you put in your engine every fourth oil change. My MPG improved slightly using this product. It is not cheap, around $20 for the 8 oz bottle of fuel treatment. The stuff you put in your engine is around $90 a gallon.( I am not associated with this company any in shape or form )
I heard about this product on a late night truckers talk show on XM radio.
Cheers Ken

12-14-2008, 09:51 AM
You might want to check where you buy your fuel, the place I usually buy mine is not selling the low sulfur. They have a notice on the pumps warning about using their fuel in 2007 and later model year vehicles. I have a 2006 so am ok without adding anything.

12-14-2008, 10:09 AM
I would think if there was a notice on the pump, as stated in the last post, then the fuel would be ultra low sulfur diesel. Back when the new fuel came out, I saw a report on diesel fuel additives with different products rated to their lubricity effectiveness. I was shocked to see that some products can even make it worse. Diesel Kleen and Stanadyne were almost at the top of the list. Biodiesel was at the top of the list. 2- stroke oil was down pretty far but still was in the "can help" category. Personally I use B5 biodiesel. When I'm travelling and it is unavailable I put in Diesel Kleen.

12-14-2008, 10:26 AM
Here's a link from Dieselplace on the testing of additives , thought was interesting. http://www.dieselplace.com/forum/showthread.php?t=177728

12-14-2008, 10:47 AM
I Personally Use Stanadyne As It Ranked Higher On The Lubricity Study Conducted By A Private Firm. There Are A Couple Rated Higher But Hard To Find And Expensive. Do A Search On The Internet On diesel Fuel Lubricity Study.

12-14-2008, 02:36 PM
Has anyone ever used Power PS Service with slick Diesel by Power Service Products, Weatherford TX
A local trucker told me that is all he uses. Your comments would be appreciated.

12-14-2008, 03:59 PM
Has anyone ever used Power PS Service with slick Diesel by Power Service Products, Weatherford TX
A local trucker told me that is all he uses. Your comments would be appreciated.

I used to use PS in my 6.0 never had any problems with it, plus used use it in my OTR trucks. Now I use Motor Kote.//heartlandowners.org/images/icons/icon14.gif

Ray LeTourneau
12-14-2008, 04:26 PM
I've used Diesel Kleen w/cetane+ but not all the time. I can tell a slight difference and it even sounds quieter. Too bad I get lazy at times and don't use it regularly.

12-15-2008, 05:34 PM
I do not add anything on a regulat basis but have used alittle Stanadyne ?

12-16-2008, 11:39 AM
The last I checked Stanadyne was the only thing GM approved using. You have to understand these new high tech deisels are not the same as the ones in most big trucks and farm equip.

12-16-2008, 12:24 PM
I have always used a fuel supplement since day one. I personally don't notice a better idle or increased MPG -or maybe just a very slight increase.............but I use it for lubricity. The FCU on my truck has a final output pressure of about 25000 PSI and anything that we use to make the fuel more "slippery" = lubricity has to be a good thing to minimize the wear on the injectors. I like Stanadyne but I have trouble finding it so I used Power Service, although as the study shows- bio fuel is one of the best things to use for increased lubricity. My owners manual says that I don't have to use anything, but I like to...just for the peace of mind!

12-16-2008, 04:20 PM
Well up until I had to replace a fuel filter because of water accumulation I had never used any kind of a supplement. Now I use the Diesel Kleen w/cetane and so far so good. Water accumulates after time if there is nothing to disperse it, so I'm hoping the Diesel Kleen will solve this problem. I also keep my tank filled to the max as much as I can during off use as to prevent condensation.

12-16-2008, 07:51 PM
I use Stanadyne in my '04' Silverado. I bought the truck new and have never had an issue.

Happy Campers
12-29-2008, 12:00 PM
In my owners manual it says " do not use additives ".Addives wern't a problem when i bought the truck but now i'm wondering about it.The truck is still under warranty and i don't want to void it so i don't see an option yet.I have been wondering if i should contact dodge or ? if they have changed the status on additives.Does anyone have a person or department that i should contact besides dealers for some straight answers ?

12-29-2008, 01:52 PM
If you truck is still in warranty I would certainly as the dealer where I get it serviced. They would be the ones to deny a warranty claim if one is made. Just a suggestion.

Happy Campers
12-30-2008, 12:12 PM
That is the problem as i don't live close to the dealer that i bought it from and they have changed around a lot.I havn't had any problems with my truck but they changed my oil under some of the warranty but now i use independents for that as we travel a lot now.At the present time we are over 500 mi. from home and won't be back for several months.I suppose i can call a cummins dealer and see what they recommend as i need filters.I try to keep an extra air filter,oil filter and two fuel filters with me as cummins is cheaper than dealers on filters.

12-30-2008, 04:39 PM
It shouldn't be a problem on the truck in your signature. The problem is with the new 6.7's as the they say the DPF may be damaged if you use additives. Even that is disputed by some. Read the label for compatability and make sure it doesn't contain any alcohol.

Happy Campers
12-30-2008, 07:35 PM
I called cummins in Mesquite,Tx. and was surprised to their answer,the parts man told me that cummins recommends Valvoline fuel treatment.Not only was i surprised by that answer but was shocked when he said they also recommend Valvoline motor oil.Then i called where i bought the truck and the parts man told me they don't use or sell any additives but he transfered me to the service dept and i was told to use any additive that will clean the injectors.

01-29-2009, 01:56 PM
I've started using Howes Lubricator Diesel Treat. Never used anything until I came up to Wyoming for the winter. I've only put @ 20k miles on my truck since coming here, but I do now have 200k total. Here's their website - Howes (http://www.howeslube.com/products/index.php/category/10). Don't think I'm gonna go 3 times farther on a fuel filter, like they claim - I'll continue to change it regularly. I started using this based on recommendations from co-workers - who have been here multiple winters. They swear by the stuff and use it year-round.