The manual says don't use any fuel additives with an LMM because they could plug the DPF.

Anyone doing it anyways? If so any DPF issues?

I use opti lube XPD and have done so for the last year. There have been no issues with it yet. The main reason I use an additive is for lubrication purposes. A lot of posts on here have said that the ULSD is too 'dry' and does not provide proper lubrication for the trucks fuel system, which is the reason for using an additive.

I used stanadyne most of the time and some 2 cycle every so often. Never had an issue with the DPF for the 20,000 plus I had it on.

Brian

X2 on teh stanadyne, I use the performance formula.

I used it when I had my DPF system on the truck too.

The manual says you can use Stanadyne - I use the performance formula too - way I see it is the injectors and pump are more important

X4 on the Performance Formula Stanadyne for 10K miles now + B5 BioDiesel .... No issues.......

Thanks for the info.

I don't know what brand it is but a local performance shop suggested a C tane booster/lubricant would help a bit on my mileage.

Just ordered more Stanadyne case of 24 8 oz bottles...... If you can beat this price let me know where..... If not google M&S Technical Services.

1 Fuel Additive - Stanadyne Performance Formula (24/case) RO38564C $64.95 $64.95

Subtotal $64.95
Shipping: UPS Ground $17.23
Tax Total $0.00
Total $82.18

Another vote here for Stanadyne Performance Formula. I only use it for colder times of the year. Normally I run B20 with no additive, and straight ULSD with the Stanadyne in the winter. No issues with the DPF for me.

Just don't spill that stuff. Stanadyne has to be one of the stinkiest substances on the planet.

This sticky thread (Fluids forum) shows relative benefits & costs of all the additives.
Lubricity Additive Study Results (http://www.dieselplace.com/forum/showthread.php?t=177728)

I don't use any right now, but looks like OptiLube's summer blend is best bang for the buck.
The General says to avoid all emulsifiers, use only "alcohol-free" additives, i.e., demulsifiers.

Just ordered more Stanadyne case of 24 8 oz bottles...... If you can beat this price let me know where..... If not google M&S Technical Services.

1 Fuel Additive - Stanadyne Performance Formula (24/case) RO38564C $64.95 $64.95

Subtotal $64.95
Shipping: UPS Ground $17.23
Tax Total $0.00
Total $82.18

can remember what size it is but it does about10 tanks. Its not the little bottles, its about a quart or 2 @ under $30 bucks. Ill check this week when I pic up another couple bottles.

does anybody use powerservice (gray bottle) in their LMM? I've used it for a few years in my 6.5 and had used stanadyne before that. I see no difference between the two and the powerservice is easier to come by at the local walmart.

does anybody use powerservice (gray bottle) in their LMM? I've used it for a few years in my 6.5 and had used stanadyne before that. I see no difference between the two and the powerservice is easier to come by at the local walmart.

My buddy uses it in his LB7 and the powerstroke work trucks all the time with no problems, I figured the stanadyne was my best bet (GM approved) so I run only it in my LMM.

PS gave members here fits last winter - and is NOT the type recommended by the General.........

If it makes you feel good use away. I just don't believe they are needed. if they are gm should give them to you. but I have to admit I do use power service in the winter,but only for fear of gelling.

If it makes you feel good use away. I just don't believe they are needed. if they are gm should give them to you.

Why do you not think they are needed? Are you sur the diesel your buying is perfect? I use it for piece of mind....
Its more of a fuel quality thing. Not worried what GM thinks about it.

I use the grey bottle PS in mine since new. It just turned 5000 miles with DPF and no problem. Have also run a few tanks(4 total) of LSD due to not having the ULSD and so far no problems.

My situation is similar to alvareracing.

I just went over 4800 miles (over 3000 of it towing our sig RV) and have used Power Service Diesel Kleen in the gray (silver) bottle since getting the truck with no apparent problems. (IIRC, the white bottle is formulated for winter and has anti-gel additives to it - not needed so much down here in cajun country.) I had to use LSD driving from Houston to Corpus Christi since none of the truck stops had Ultra Low, maybe one tank total. No noticeable change in power or engine performance, or even in the number or length of regens.

PS is alcohol free and they state on the bottle that it will not void the manufacturer's engine warranty. I'm not concerned at all about using it. And it's always available at my local Wally World.

I've not had any luck with the additives. One of my trucker buddies told me about a something he uses on his rig - called Envirochip. Sounds corny, but you put this little bugger on the bottom of the fuel tank. Thought at first is was one of those gas magnets, but found out differently. Uses some new bio science and lasts 3 years. Been using it now for about 5000 miles - seems to work great.

:grd:

Guess I can sorta understand choosing GM (or Ford) because, "... that's what Dad always drove."

However, I don't understand why anyone wouldn't read the scientific study of fuel additives that is provided here on DieselPlace by contributions from the membership ... (Lubricity Additive Study Results (http://www.dieselplace.com/forum/showthread.php?t=177728)) ... before choosing a value & benefits-based fuel additive. Even if spending on a lubricity additive just for 'peace of mind,' I'd want some logical basis upon which to spend my money. Caveat: since this is a "summer" thread, few members are spending on additives for anti-gelling capabilities.

It seems to me there are only two logical "cost-benefit" lubricity choices in the following list (ignoring cetane or anti-gel properties). Adding a half-gallon of biodiesel (per tank) provides the most lubricity, and protection, FOR FREE~! (since that half-gallon displaces a half-gallon of ULSD).

Per the study, lubricity does not improve with any greater biodiesel ratio than 2 percent. (Note that a half gallon per 26-tank works out to two percent biodiesel). But it's pretty clear that anyone with a nearby B-05 pump could totally dispense with the effort and cost of any lubricity additives. Absent that nearby bio-pump, OptiLube summer blend provides vastly more "lubricity protection" per buck than the other additives, while still matching pre-ULSD fuels.


DIESEL ADDITIVES HFRR Microns Oz/Tank Cost
(460max) Impvmt /Tank
1)SoyPower biodiesel 221 415 66.56 FREE
2)Opti-Lube XPD 317 319 13.00 4.35
3)FPPF Diesel/Gas trtmt 439 197 5.20 2.60
4)Opti-Lube Summer Blend 447 189 1.11 0.68
5)Opti-Lube Winter Blend 461 175 6.50 3.65
6)Schaeffer Diesel Treat 2000 470 166 3.32 1.87
7)Super Tech 2-cycle oil 474 162 16.64 1.09
8)Stanadyne Lubricity 479 157 3.32 1.00
9)Amsoil Diesel Concentrate 488 148 5.20 2.16
10)Power Service Diesel Kleen 575 61 8.32 1.58
11)Howe’s Meaner Power Kleaner 586 50 3.32 1.36
12)Stanadyne Performance 603 33 6.90 4.35


For those who prefer not to read the free study linked above, here are some hints to the assessments tabulated in this study. There's an industry-standard test of fuel lubricity called the HFFR, which measures a "wear-scar" that it creates within various "baths" of treated fuel. The Engine Manufacturers Association (EMA) recommends a wear-scar no greater than 460 microns, which was the average wear index for pre-ULSD fuels. The wear-scar of untreated ULSD is 636 microns.

HFFR plus Microns Improvement (adding cols. 2 + 3) equals 636 microns
That 636 micron (base-level) represents the wear index of untreated ULSD fuel.
Each additive is ranked by the amount it measured in "protection improvement."
The remaining columns reflect the quantity of additive (per 26-gallon tank)
and the computed cost of such additive, per tankful.

Adding a half-gallon of biodiesel (per tank) provides the most lubricity, and protection, FOR FREE~!



Exactly........ :D

Thanks for the reminder hookedOnDmax. Looks like I can get piece of mind and save money at the same time. Got a love this site.

no problems, been using it 5000 miles plus been using pemex diesel no issues dont believe what people are telling you unless you know someone had used it or try it yourself. Ive been using it for the pass 7000miles fuel from mexico and its only 2.24 gal. 119 on top and 34 bottom.

Moved to the Fuel additives section! ;)

I've used fuel additives in my '08 LMM since it was new (18K miles): PS, Redline, or Ethos Fuel Reformulator ("The blend of esters in Fuel Re-formulator cleans & lubricates the internal parts of the engine without the use of petroleum-derived solvents commonly found in fuel additives.") The only comment I'm making is my truck has never thrown one code, and is apparently regenerating the DPF the way that it's designed to.

After reading that comparison, I started using Opti Lube as soon as I used up the other brands I had. I've used one or another since I bought my LMM a year ago. I agree that Opti Lube is the best bang for the buck. I have almost 25K miles on the truck now, and doubt that the DPF has regened a dozen times yet. I put a Banks 6 Gun on the truck in April; maybe there's something to their claims about being a cleaner tune. I'm fairly certain that the DPF has only regened twice since then.