I have a friend who said he has been adding a quart of 2 cycle oil per tank of diesel and it is increasing his gas mileage by 4 or 5 mpg...................



Is there any truth to this!?!?!

I would love to increase mpg, as I'm sure we all would, but I am not willing to mess up my engine.

thanks

Moved to fluids forum

If 2 cycle oil is added for lubricity purposes make sure you are adding the TCW-3 spec, which is the ashless.

I add it for lubricity. It smooths out my idle and seems to add a bit of "pep" in the old seat of the pants speed sensor - but it has made no noticable increase in fuel mileage. I would be tempted to call BS on 4 or 5 mpg change.

I would not put anything like that in my engine.

to get that kind of mileage improvement you would need to be adding something with a much, much higher energy content/gal than diesel, especially with that small of an amount. 2 stroke oil isn't going to do that. IMHO he's blowing smoke

Assuming you can't change vehicle areodynamics, frontal area, or rolling resistance, there are only a few ways to improve mileage.
1) mproves the vehicle thermal efficiency, (which is very hard to do),
2) use a fuel with a much higher energy content/gal. (also hard to do when using hydrocarbons like gas/diesel. Not much with higher energy content, lot's with lower energy content such as ethanol, LPG, LNG etc.)
3) change your driving habits.

(3) is the easiest to do, but is also the least "fun".

I have a friend who said he has been adding a quart of 2 cycle oil per tank of diesel and it is increasing his gas mileage by 4 or 5 mpg...................



He has been smoking crack as well as adding two stroke oil!!!:D

I'v added 2 stroke to my diesel before, saw no improvement in mpg, mayby a little smoother idle, but probly in my head. only thing i see it good for is its better on the injectors, adds some lubrication to the fuel since this ultra low sulfer crap sucks. I prefer power service for additives.

I've been running 2 cycle oil in mine for a long time and haven't seen any increase in mpg.

no increase in milage just better for your motor. i run lots of it and it runs better every day

I run a pint per fill up and have been for a long time now. No increase in mileage.

Thanks guys!

How much and what kind should a guy add?

Walmart brand is fine. As long as it is TCW3, which it is. I have also used it and have not observed any noticeable fuel mileage increases, however, I have noticed a smoother running engine. I run about 8 oz per tank.

I would not put anything like that in my engine.
Neither would I, dealer would love to blame an engine or injector problem on that crap and deny warranty, 2 stroke oil is for 2 strokes, not diesel engines.....

Neither would I, dealer would love to blame an engine or injector problem on that crap and deny warranty, 2 stroke oil is for 2 strokes, not diesel engines.....

Check out the lubricity study, 2 cycle oil has been used in diesels for a long time. Does wonders for my 6.5 injection pump and injectors, but I'm way out of my warranty period.

However you require an additive of some sort be it powerservice or 2 cycle oil especially with the "dry" diesel we are getting now in the winter. Lots of injection pumps have been lost because of it.

I have used it for some time also, i use outboard motor oil, as its cheaper, mix is 1oz per gallon of fuel. It definately runs smoother, and i too would guess it adds a few ponies, but nothing serious. Makes for some interesting conversations at the fuel pump, add before fueling.

i put about an ounce of the same penzoil tcw3 i run in my golf cart per fill up now, i decided power service costs to much and has little advantage. and i already have tons of penzoil/ west marine brand tcw3 to use up.

i put about an ounce of the same penzoil tcw3 i run in my golf cart per fill up now, i decided power service costs to much and has little advantage. and i already have tons of penzoil/ west marine brand tcw3 to use up.

Please do not get confused between fuel additive (Stanadyne, Power Service, etc) and 2 stroke oil. A good fuel additive conditions the fuel and keeps the injectors clean and allows the fuel to burn optimally and more efficiently. It may not be that good for lubricity, but it has many other good attributes. That is why members are adding 2 stroke oil to their tanks, for better lubricity. I continuously add my Stanadyne, and sometimes add 2 stroke to add lubricity.

The added lubricity is needed for ULSD which has less lubricity than LSD.
I have heard from a diesel shop who gets a lot of cases of failed IP due to ULSD.
Apparently, with less lubricity, the IP gets hotter and failed at a faster rate.

Please do not get confused between fuel additive (Stanadyne, Power Service, etc) and 2 stroke oil. A good fuel additive conditions the fuel and keeps the injectors clean a,d allows the fuel to burn optimally and more efficiently. It may not be that good for lubricity, but it has many other good attributes. That is why members are adding 2 stroke oil to their tanks, for better lubricity. I continuously add my Stanadyne, and sometimes add 2 stroke to add lubricity.


all im shooting for is keeping my original lb7 injectors alive for a while longer.

OK, I would try to continue running both the Power Service and about 8 oz of 2 stroke oil and see if it quiets the motor down and gives you better longevity. The Power Service will keep the injector tips clean and better the spray pattern.

OK, I would try to continue running both the Power Service and about 8 oz of 2 stroke oil and see if it quiets the motor down and gives you better longevity. The Power Service will keep the injector tips clean and better the spray pattern.

Bio-diesel was proven to be the best lubrication on the recent study done here by DP members. I run about 1 - gallon of B100 per tank (34 gal tank on longbeds) and have had good results. Engine runs quieter and smoother.

A good quality 2-stroke oil (TCW3 rated) is also a good additive mixed at 200:1 or 16 oz per 25 gallon tank. Wally World's Supertech 2-stroke is very popular by forum members. It's $8.78 per gallon and is the best deal around. I've run as much as a quart in a tank with no problems. Mileage and power seem to be increased somewhat also.

See: http://www.dieselplace.com/forum/showthread.php?t=177728 for the results of this testing.

Six Pack:

I realize that Bio Diesel is the best, but this thread was about 2 cycle oil. :confuzeld

OK, I would try to continue running both the Power Service and about 8 oz of 2 stroke oil and see if it quiets the motor down and gives you better longevity. The Power Service will keep the injector tips clean and better the spray pattern.

I'm with you I would like to keep running the FPPF Total Power (which I just bought a case of) and use the 2 stroke for lube. I think I want to run synthetic so I can use a smaller dose. Does this make sence or should I just cut my losses with the FPPF sence it did so poorly in the lub study.

I'm with you I would like to keep running the FPPF Total Power (which I just bought a case of) and use the 2 stroke for lube. I think I want to run synthetic so I can use a smaller dose. Does this make sence or should I just cut my losses with the FPPF sence it did so poorly in the lub study.

I run 1/2 ounce per gallon of 2 stroke for lubricity since last Fall. I have run FPPF Total Power in every drop of fuel that has been burned in my truck for 7 years and 156,000 miles. Oh, I'm also still running on my original 2001 injectors.:cool:

We all need to listen to Idle Chatter. That is experience talking right there. He has been around for a while, and he has not had a problem! That should tell us something! ;)

we should try telling some tree huggers there is actually a benefit to running 2 stroke oil! ;) see what they say:p:

I have been running Amsoil diesel concentrate and Amsoil saber 2cycle for 40,000 and no problems in my 04. I want my injector to last.

Can somebody please explain why MY mileage goes down, with 2-cycle as an additive?

2 cycle oil should not have any "real" affect on fuel mileage. It is more of a lubricant. Your fuel mileage drop may be more related to driving style. ;)

I have tried three differant times with all showing approx 2mpg loss. Will stick with Power Service.

I've got some old pre-mix for my dad's old 1980 something evinrude outboard,in a metal cansays it's a SAE 40,can I add that to my fuel at 1/2 ounce per gallon??

Bammer:

With stuff that old, I would use caution. Get some new 2 cycle oil and try that, I know it is not 40W, because it feels much thinner.

Bammer:

With stuff that old, I would use caution. Get some new 2 cycle oil and try that, I know it is not 40W, because it feels much thinner.


Yeah I have set aside as bar/chain oil for the chainsaw,maybe newer stuff would be more appropriate eh!

I have a friend who said he has been adding a quart of 2 cycle oil per tank of diesel and it is increasing his gas mileage by 4 or 5 mpg...................

Could this 4-5 MPG increase be a seasonal change thing, like his fuel Dealer getting rid of winter blended fuel, and now your buddy is running straight #2?

I was talking to a long time trucker this weekend. He hauls heavy, specialized loads, +80,000lbs.

He sees 1 to 1.5 MPG pulling heavy loads when he add 2 cycle oil. His comment was the 2 cycle oil lubricates the upper cylinder and helps ring sealing.

So instead of 4 mpg he can get 5 mpg or more, that's $200 / 1000 miles.


So MPG increase could have more to do with the condition of the engine than any special properies of 2 Cycle oil in increasing mileage.

Would you know of where I could purchase this FPPF Total Power additive in Canada? I did a Google search with no results in Canada. I live on the west coast of British Columbia. Maybe I could order some from somewhere close in the USA? I would appreciate any dealer info.

Would you know of where I could purchase this FPPF Total Power additive in Canada? I did a Google search with no results in Canada. I live on the west coast of British Columbia. Maybe I could order some from somewhere close in the USA? I would appreciate any dealer info.

I don't know about close, but here's some from a supporting Vender:
http://www.kennedydiesel.com/categoryresults2.cfm?Category=9&SubCategory=98

Could this 4-5 MPG increase be a seasonal change thing, like his fuel Dealer getting rid of winter blended fuel, and now your buddy is running straight #2?

It might be a combination of things! Both 2 cycle oil , and good #2 diesel. ;)

I went a tank without any additive a few weeks ago because i forgot, and when i filled up again with 2 stroke, that injector clank got ALLOT quieter, i was surprised. without it she sounded like a powerjoke when i was next to anything to echo off. very noticeable.

FWIW, I have been using 2-stroke for 4 months now and HAVE definitely noticed an increase in mpg. 470 miles to a tank on Power Service and 520 with Super-Tech TCW-3. All the same route and same driving conditions. For those of you using old motor oil, just remember that 2-stroke was MEANT to be ignited and be ashless, whereas old MO is not. Check out other forums that get into this subject in depth. There is some good info to be had on this whole idea, and best I know, NO one has had any problem due to running 2-stroke oil. It just has to be TCW-3 rated, no matter what brand. And, oh yeah, Power Service has a 100 point higher wear rating as far as lubricity goes!:eek::eek: Yeah, no thanks. Hope this helps.

Will the 2 stroke oil I asume added to my fuel improve the mileage on my 07 duramx. I am real new to all this diesel stuff. I am just trying to understand what I can do to improve the mileage & reduce my fuel cost's. My little gas burner truck gets 21 to the gallon. My duramax gets 16 & almost a $1 differance per gallon in fuel cost. Where due I get the 2 stroke stuff.

2 stroke aka 2cycle oil is the same oil used for your weed eater or small engine boat. You can get it anywhere like wally world which is probably the cheapest one out there. HD or Lowes sells it too in their gardening machinery department.

Some people reported increase in mileage some don't but it does improve the lubricity of the ULSD fuel. You have a 6.6L engine and should not be compared with the size of smaller trucks. 16mpg for such a big truck is good.

Will the 2 stroke oil I asume added to my fuel improve the mileage on my 07 duramx. I am real new to all this diesel stuff. I am just trying to understand what I can do to improve the mileage & reduce my fuel cost's. My little gas burner truck gets 21 to the gallon. My duramax gets 16 & almost a $1 differance per gallon in fuel cost. Where due I get the 2 stroke stuff.

You can get cheap 2 cycle oil at walmart. It comes in the blue jugs, and you can get it for less than $9.00. AS long as it is TCW3, you will be OK. Also try running a good fuel additive along with each tank of diesel. Many here run Stanadyne. Check out the tuner section. There is a lot of good reading there regarding tuners and mileage improvement. Any questions, PM me. Hope this helps.

Neither would I, dealer would love to blame an engine or injector problem on that crap and deny warranty, 2 stroke oil is for 2 strokes, not diesel engines.....

Yeah, and your dealer would love to charge you for new injectors 500 miles outside your warranty too. :D

I've run 2-stroke in all my diesels and have for awhile. Supertech TCW-3. They run quieter and smoother and I like the added lubricity with this ULSD. I do not trust the refiners to add what's really needed for injector longevity. super clean fuel (why I love auxiliary fuel filtration too!) + plenty of lubricity = happy injectors. I run about 12 oz. to a tank.