just went to wallmart looking for 2 stroke oil to add as a fuel lubricant replacement and it seems that someone on this forum was saying that the walmart brand is what they were having good luck with. now I know the oil has to be 100% petroleum based with no synthetics and have heard I want an oil with a tcw3 rating but the only oil 2 stroke oil walmart caries is supertech and no where on the bottle does it say if its a petroleum oil or synthetic blend. there isn't even a phone number on the stuff. is this what you guys are running?

 

boating section of most walmarts have Penzoil 2 stroke in quart bottles, and they also carry the PS white bottles....... thats my blend.

 

Sometimes Valvaline brand from AutoZone or Kragen. It's cheap enough. But most of the time I run Yama-lube. I buy it in large quanities since I use that in both my Yamaha Banshee and Honda TRX250R. I used to use Maxima 927 Castor. But I've found that it's a very dirty oil. It leaves all sorts of soot in the top end of the motors and in the pipes. So I reasoned that the same effect would happen to my Cummins also. It sure does smell pretty tho........

 

im using silkolene in mine, smells great but it is kinda expensive, but i use it in my bike so i have it on hand!

 

Buddy of mine said he uses Marvel Mistery oil in his fuel. Anyone else using this? He says it's working good.

 

Wallyworld TCW-3, Usually found by the marine and greases. By the way, Marvel Mystery oil has alot of solvent compounds in it. IMO I wouldn't dose with it...

 

how much two stroke oil do you use?

 

2 cycle oil is meant to be burned so i dont think it matters how much u put in.i like the "if a little is good then lots must be better theory"i use a bottle per tank.mite be to much,mite be not enough whos to say.i dont think theres any proof 2 cycle oil is good or bad in a cummins.some say its quieter some say smoother idle,some say nothing.its just a habit for me,with my vp truck i wanted as much lube in the fuel as i could.

 

I am using the Supertech from Walmart . 2 oz. per. Gallon . My mileage went from 16.5 to 18.5 . I can't believe it . But it's true

 

You would think with as many people that are now doing this, someone would have emailed Cummins by now and asked them what their stance is on this issue. I put a little oil in my fuel from time to time but some of you guys are putting in what I would consider to be a large amount.

 

but what gets me is the fact that super tech doesnt say if its a petroleum based oil or a synthetic blend. I bought some but Im not dumping it in till I know for sure what it is. I will be on the phone today finding out!

 

please let us know what cummins says!!!!

 

what's wrong with synthetic blend? i use it all the time

 

I put Valvoline multi-purpose 2 cycle oil TC-W3. It says it is "ashless", I have gotten better mileage in both my trucks with it. I use 1 quart every tank cause I dont fill up till the light comes on, usually around 30 gallons.

 

ditto here on the valvoline tcw3 ashless they now carry it in Flying J stations