Here's the one I am considering.

http://www.amazon.com/Stanadyne-Perform ... B000M5NNQ6

 

Here is the one I use. I add 8 oz per tank every 4th or 5th tank.

http://www.amazon.com/Power-Service-03080-06-Cetane-Additive/dp/B001JT1FJ6

 

I always use stanadyne that comes the highest recommended on other diesel forums. it's done well for me in the past.

 

I run diesel kleen from Walmart cause it's easier to pick up when I'm already there vs ordering off amazon and I run it every other tank. I also have a lift pump on my truck to help remove air and extra dirt from the fuel and help the cp4. Extra filtering and lube can't be a bad thing if you ask me

 

Lift pumps are an excellent idea if your dealer won't void your warranty as a result of using it.

Standyne and Optilube XDP are the "best"

 

I run stanadyne every 2-3 tanks in my LLY. It was recommended to me by my mechanic and couple dealers also told me that with the LB7 injector problems it was the only thing besides the gm injector cleaner that the warranty would accept.

 

I have a Chevy Dealer who recommends and sells this. They report satisfied customers.



:arrow: Diesel Injector Clean

 

So many options on the diesel additives, it's nuts. I think it's important for LML owners to use additives with the highest lubricity increases to help the CP4 live long, most of what I see recommended is Optilube and Stanodyne. I've been using stanodyne in my LMM, but i'm never sure which formula to use. On my first tank I used their injector deposits formula, and now using the performance + lubricity formula.

A test was run by spicer a while back showing Optilube as the best choice. I think if you go with any name brand it will serve you well. Amsoil makes kickass oils, but for whatever reason thats where my love affair ends with them. Probably just because they aren't commercially available in my area.

 

I am using Stanodyne Performance (blue label) in my 15... Better safe than sorry I figure...

 

Why do you need to add anything? On my LLY I've never used an additive (277,000 miles) and it runs fine, 22 miles per gallon on the highway and pulls my big trailer with no problems. I have all my routine regular maintenance done at the Chev dealer. What are the symptoms of needing an additive? If it ain't broke do I need to fix it?

 

It can never hurt, it adds lubricity that US spec fuel lacks, boosts cetane, scavenges water and prevents fuel gelling. It basically conditions your fuel into a brew that not only burns better for a more efficient combustion, but cleans and clears your entire fuel system all the way to the injector tips. It also stabilizes fuel for longer term storage. It is vitally important to use on the LMLs, all dmaxs previous have the luxury of not having to worry as much. But it begs the question, if it only helps, why risk not using it if can prevent/prolong the need for expensive repairs while simultaneously increasing peak efficiency. It can also help to prolong the life of your high pressure fuel pump, which is a $600 part with ~$400 labor of you don't DIY.

 

Thanks for the advice. Makes sense. Fleet Farm sells a product called DIESEL CLEAN + cetane boost, injector cleaner and performance improver. Has what they call "slick diesel" lubricator for pumps and injectors. Might be a Slick 50 product. I just go there a lot and it's convenient. Is it necessary to get a particular brand? I'll give it a go. Sometimes I guess loss of performance is so gradual you don't realize it until you try the stuff.

 

Just make sure it's an alcohol free demulsifier.

 

That's true about things degrading gradually. Diesel clean(kleen?) is well liked. Most people tend to say optilube xdp and stanadyne are the best.

 

Thnx for the help. Yeah, spell check got me on the KLEEN. I'll look for the stanadyne, I have noticed on the forum that other guys say it's good, so must be alcohol free too. It must be available at the auto stores, just haven't been looking for it.

 

I use diesel additive, but I get it at very good pricing from my oil supplier and don't buy the off the shelf varieties. I go thru about four to five 5 gallon pails a year, but then, I go thru about 21,000 gallons of diesel. The cost per application needs to be watched. For me, it averages around 2-3 cents added cost per gallon of diesel for fuel additive for the stuff I use. Recommended dosage at 1 oz per 15 gallons of diesel for summer and 1 oz per 7.5 gallons in winter. Cost effective for my needs. Lubricity is hardly an issue nowadays, as almost all diesel is getting some level of biodiesel in it, and a simple 2% biodiesel raises lubricity significantly higher than anything you can buy off the shelf. And fuel system components have been designed around lower lubricity diesel anyway. But fuel system cleaning is as important as it ever was, and water issues have cropped up more frequently since the advent of ULSD. An additive may not be totally necessary, but is sound advice if one is dealing with poor fuel quality or winter conditions. All it takes is a bad load of fuel and sitting along a roadway changing a fuel filter at -20F to convince anyone.

 

21,000 gallons? Wow, you must be rolling more than 4 wheels at a time! Cost for me isn't an issue, only say that because I burn only about 400 gallons a year. So would you consider stanadyne a good choice in my case?

 

Yeah, it's a good product. I have never used it, but have heard good things about it. As for the amount of fuel, it does take a lot of move a commercial freight tractor/trailer around at about 135,000 miles a year. And add on to that the diesel I use for stuff around the farm. Fortunately, I get substantial commercial discounts off of the pump fuel cash pricing.

 

Thanks Oscyjack and Copperhead. Seems like I just went to the library!

 

No problemo.

Copper, the lubricity may not be problematic with the big rigs. But powerstroke(6.7)/duramax(LML) as well as many other smaller diesels use the Bosch CP4 HPFP, which is meant to run on a fuel with higher lubricity factor than what is available in USA. Bosch claims their HPFP in the LML will have an expected lifespan of 1,000 hours on US spec diesel straight from the pump with no added lubrication. Both Ford and GM have an abundance of failed fuel systems with the CP4. I have a CP3 so I stopped worrying about it, but many diesel specific forums are on fire with this topic. Much like this forum with oil consumption. US diesel fueling a CP4 may indeed go a long time without issue, or it may grenade resulting in a hefty repair bill. my .02.

 

Per testing data, a 2% biodiesel blend raises lubricity to pre ULSD and pre LSD levels. Nice thing, it's included in a lot of pump diesel nowadays so no need to supplement. The diesel I typically get is laced with between 5% and 10%. There is no additive that comes close. Lubricity is not the problem made out to be. Some equate sulfur with lubricity. False. 100% biodiesel has virtually no sulfur but is loaded with lubricity components.

 

Agree on biodiesel, 100%. It outperforms all additives. In MA at least, I have yet to see any % biodiesel available. I'll look more into whether or not it's just not posted.

I was basically making the point that US diesel sans any % bio should warrant the use of an additive

 

According to EPA, biodiesel levels less than 5% are not required to be posted at pumps. Doesn't hurt a bit is someone wants to add something to diesel that doesn't have bio. I fuel from Nebraska to Ohio weekly, and among the major trucking fuel stops, I have not seen one in the last few years that didn't have biodiesel blended in. Maybe a mom and pop might not, but my preference even with a pickup would be to fuel at high volume locations such as commercial truck fueling locations simply because higher volume reduces risk of bad fuel.

 

I hear you, and Agree. I'm anxious to hear whether or not my station has any biodiesel. In my neck of the woods, high volume diesel would require 1/3rd tank journey, making it cost prohibitive

 

I've been Running an additive since I picked up my LML. I emailed the fuel company I fill up at, on their website. Within a few days their response was they put in 5% bio diesel from April to October. (Too cold in alberta to use it in winter). They have no advertisement about any biodiesel content at their pump or on their website. The company I'm referring to is petro Canada. Owned be suncor energy.

Knowing what I do now with my research I'm not adding any additive as long as I fill up at a busy petro can. Other stations I'll use my additive just to be safe.
I wish Canada had B20. Nothing but good stuff (as long as it's warm out). B5 will do the trick for me for now.