Not only not needed, but could cause problems with injectors etc. Don't add junk to your fuel. Your Cummins likes clean fuel.

 

u hav a 67 so.................................................................

 

I did it for a few months when I first got my dodge. Didn't notice any diff in power or mpg gain so stopped.

 

I have been doing it the last 30000 miles o problems and i gained a solid 1 mpg . Its not gonna screw up your truck all trucks respond different to different things my advice is try it a couple fill ups and see how it works for you . I put .5 oz of walmart brand twc-3 marine two stroke oil ,a gallon is $11.00 I keep a full 16oz in door pocket .

 

i had an injector sticking and would give me rough idels on start up, started using the ashless 2-stoke over a year ago and it went away right after

 

i had an injector sticking and would give me rough idels on start up, started using the askless 2-stoke over a year ago and it went away right after

... Mine did the same thing.

 

how much oil do people add per gallon?

 

1oz per Gallon

 

16 ounces per 25 gallons is about the most I use on my 06. Experiment ,but that seems work best on mine. I have always kept detailed mileage and do see about a one half mile per gallon gain. Also a little quieter. Varies from truck to truck but works for me

 

I agree with rprice704 about trying it out. Assuming you use the correct oil in the correct amount, you're not likely to screw something up. In all of the research I did before trying it out, I didn't find anyone that had any significant adverse effects from using 2-stroke oil.

My experience is that it has done nothing for my truck. I have been using it in conjunction with PS Diesel Kleen for about 2 months, but have experienced a slight drop in mpg so I plan on stopping for awhile. When the weather is warmer, I'll try it out again for a couple months.

There are benefits to using it even though it may cost you an mpg and thats to lubricate the lift pump and make your injectors a little happier. Some 3rd Gens like it, some love it, some don't really seem to care, and a few don't exactly run well with it.

 

I did it on a trip I took about 800 mile round trip I don't knoe if it was just dumb luck of dirty fuel or if the oil didnt break down good enough but I was only adding 4 onces per tank and my filter gummed up and truck would hardly run after the second tank so haven't tried it since

 

It just makes since to me ulsd does not have lubricants like the old diesel that our trucks were designed for.

 

any diesel engine meant for road use since 2004 was designed for ULSD. after the 07 EPA standards came out it is required in most... you can still get LSD, but i wouldnt recommend it(liquid or otherwise)... clean fuel and clean air will do wonders for your ride... use both.

 

Cant say for sure, but seems like the Walmart oil does help mine. Didn't start adding anything until this last fall at about 100k after I had some injector issues. I have tried PS Diesel Kleen, Howes, Walmart 2 Stroke, and Optilube. Have not had injector or filter issues when running a lube about 12k miles. May be a little smoother and quiet idling. Optilube among other lubes were involved in a test you can search for. I know I have added a link a couple times on this forum. Bottom line, I will run some kind of lube on a regular basis from now on.

 

Tons of threads on this. Consensus is that there is no consensus! Just dont use synthetic 2 stroke!

 

Optilube is cheaper and better if you really want to use an additive.

 

I started useing TCW-3, 2 cycle oil in '06 when ULSD hit the market. I use it to add lubrication to the fuel because much of the lubricate is removed when the sulphur is removed. The lubricant is supposed to be added back but is it and is it enough? I use 2/3 oz per gallon to help lube the CP3 and the injectors. I did not see an increase or decrease in performance but it did quiten the CP3 tick.

Research has shown that Bio 10% and Optilub is better, just haven't used either as the 2 cycle it easier for me to get.

 

Been running walmart 2 stroke oil in every tank of both my trucks. 20 oz of 2-stroke oil and 10 oz of PS diesel kleen. I can tell you that it has smooth out both engines. I have ran the diesel kleen for years and once I added 2-stroke to the mix it was a significant difference in the sound. It quite down the engine on both trucks and smoothed the idle out. I say do it... I keep the 20 oz gatorade and vitamin water bottles to keep the 2-stroke in for fill ups then I just chunk the bottle in the trash at the gas station

 

Good idea on reusing the drink jugs. Have you seen any MPG gains?

 

wow thanks for the info i guess next trip to walmart i will pick up a gallon and try it thanks again

 

Anytime I run the diesel kleen with the 2 stroke I see a MPG drop, 2 stroke by itself (.5 to gallon) a slight gain.

 

Just had a discussion with a friend on this yesterday. I haven't used it yet but plan on starting. My friend uses 12oz every other fill up and says his runs smoother and is quieter (more quiet?), makes less noise. I plan on trying it next tank. Going to use the Walmart stuff too. I think anything with TCW-3 will work.

 

http://rivrdog.typepad.com/files/copy-of-diesel-fuel-additive-version-3.pdf

If I didnt make bio, 2 stroke would probably be my second choice.

 

I was just about to find the Spicer Report and link it as well!

To sum the Spicer Report up for you guys:

1. With the swap to ULSD, sulfur went from 500 ppm down to 15 ppm, this reduced the amounts of lubricants in the fuel significantly.

2. Fuel manufacturers are supposed to add lubricants to each specific re-seller's blend as they ask for, but with a minimum national standard they are supposed to meet.

3. Several random samples taken have shown that many do not meet the requirements in their additives to meet this, which could lead to early breakdown of fuel components for lack of lubrication.

4. For the testing, 19 additives were used against each other, including 2-stroke (TCW-3 certified) and transmission fluid.

5. Testing was done by having a fuel and additives sent to an independent lab with the only labeling being the ratio they needed to mix it to. It was then used in the same test the national standard is based off of for fuel lubrication. A ball bearing is slid along a metal surface for a period of time and then examined under a microscope to measure the wear scar. The small the wear scar, the better lubrication the fuel has.

6. Walmart branded "Supertech" 2-stroke oil came in 7th out of 19 tested for how well it lubricates fuel. This is using a 200:1 ratio. Also, it's results tested better than the national standard for how large the wear scar on the ball bearing should be.

So there is the quick summary of it. I've been using 2-stroke for the last 20k miles purely to lubricate the fuel, not looking for MPG's. 200:1 is the ratio that i've been using since reading the report

Here are some quick numbers for the easy math for 200:1. I suggest grabbing a 32oz nalgene or whatever from REI with the graduated oz markings on the side. Seals well and is easy to measure with.

30 Gallons / 20 oz
25 Gallons / 16 oz
20 Gallons / 13 oz
15 Gallons / 9.5 oz
10 Gallons / 6.5 oz

For anything else, take the number of gallons and multiply by 128. Then divide by 200 and that will tell you how many oz of 2-stroke you need for a 200:1 ratio.

 

Been running walmart 2 stroke for 60,000mi now and not a single issue.. Use a 12oz gatorade bottle every fill up. Didn't notice mpg change but motor ticks less and a little more lube never hurts. 120,000mi on truck now and "knock on wood", no injector problems.

 

there is a scientific study on this, use the search button to find it

on that note, the study shows that 2 cycle is bad, it doesn't lubricate like everyone thinks it does. I want to say they tested around 20 different addatives, including 2 stroke and ATF, and there was only a handful of addatives that increased the lubricity of ULSD. Amsoil was one of the best. That's the only fluid I run in all my vehicles and the only thing that goes into my tank besides diesel

 

Which study are you refering to? The one I posted ( http://rivrdog.typepad.com/files/copy-of-diesel-fuel-additive-version-3.pdf ) shows Amsoil as #9 and 2 stroke as #7

 

no, there is a thread that had 2 links to 2 separate studies by independent labs, 2 cycle was definitely near the bottom

 

Find it then post it!:confused013:

 

I don't care what anyone else wants to run in their fuel because Im not paying to fix LP CP3 injectors etc. its up to you to make that call, I believe Bosch also says NOT to use 2 cycle, and they make the fuel system so I will take their word for it (but I could be wrong on the bosch part, but Im pretty sure)

 

That's because they know it will last longer with added lubrication.. it won't last as long without it running only ULSD. It's more money in their pockets when we have to replace the injector pumps b/c it wasn't getting it's fair share of lubrication. Moparman posted an article that showed both VP and common rail pumps that were ran with and without lubrication and the one with only ULSD failed big time...

 

Oh...one more thing. The testing I'm talking about was done with no names. They just numbered them so the people running the tests didn't know what addative they were testing so there wasn't any discrimination. I'll look tomorrow for it

 

I didn't say not to run just fuel. I said read the unbiased research whre th scientists didn't know the name of the products numbers. And Amsoil was one of the few that actually raised the lubricity. I would use any of the ones that raised it. Alot of them were worse and I believe 2 stroke was one of the worst ones. Just my opinion, you can run and believe whatever you want to. Im not saying you 2 stroke guys are dumb at all, I just simply don't believe it does any good for your truck and highly doubt it gives 1-2 mpg. Alot of people say things gave them a huge increase in mpg's. I don't believe most of it, or people claiming 25+ mpg in a 7-8k lbs truck. The old saying is still true "believe half of what you see and none of what you hear"