MPG's with Different Brands

[TennesseeDuck]

Anyone ever experiment with mpg's using different brands of fuel. I work with a cummins guy who swears some are better than others in his and it is enough of a difference that it is worth the extra cost vs. the cheap fuels. I've been using walmarts murphy in both of mine and don't seem to get as good as many on here claim they are getting. I'm thinking its time for me to experiment with different brands just to see if I can improve mpg's. I just wanted some input from anyone that has noticed a difference in the brands.

[RollinEarly99]

I tried that once, I bought Chevron diesel for about 4.19 a gallon. I was only averaging about 13 in town, then I went back to the cheap truck stop fuel (3.84) and get 14.( but thats with diesel Kleen additive)

[Bush_Master]

I can usually get better MPG with Hess over Sunoco. But (Duh!) my truck really likes 500..

[Cheeks]

I haven't noticed to much of a difference myself, around me I have sunoco, bp and getgo. Usually the truck gets filled at bp but I've tried the others and no difference to me

[Zaairman]

My only rule is that I don't fill up at the podunk stations that are known for selling cheap gas.

[lifewitlooie]

I use truck stops just cuz I think since the fuel is always being pumped it gets stirred alot?? I made up my own theory

[TennesseeDuck]

Years ago I had a gasser and used Phillips 66 gas because I got better mileage with it. I know around here with gassers there are 2 stations I get better mpg with, Shell and Marathon. I had just never tried it with diesel but I do use Diesel Kleen in both of mine. With the difference in prices being as much as .30 it might not be worth it to try it. I know in cars ethanol is not a very efficient fuel and WalMart mixes ethanol in their diesel so I was just kinda thinking it might be hurting me as far as mpg's go. I kinda make my own theories too Looie, works for me anyway.

[Zaairman]

Try 2 stroke oil instead of Diesel Kleen.

[TennesseeDuck]

Originally Posted by Zaairman

Try 2 stroke oil instead of Diesel Kleen.

Why 2 stroke over Diesel Kleen?

[Zaairman]

Originally Posted by TennesseeDuck

Why 2 stroke over Diesel Kleen?

I ran Diesel Kleen in a few tanks of mine. Didn't notice any changes at all in mileage, start up, power, etc. Switched to a 1:128 ratio of 2 stroke oil (1oz per every gallon of fuel). Truck is much quieter, runs smoother, and I get better mileage. Plus, it adds lubrication that the ULSD has taken away from our trucks.