I have looked around and can't find any threads on Monster Diesel? I am Perry Hall and found recentley that the Citgo @ Rt 40 and Middle River Rd have it premixed in their fuel. Question is, does anyone use and believe in it? I was told atleast 2 miles per gallon more by a Duramax user and more power as well as cleaner exhaust.

I tow a 9,000lb camper and 2 miles per gallon more would be great if it works and doesn't harm the Cummins.

Any thoughts?

 

I ran two bottles of it and saw no real increase. i did feel a little of a power boost by butt meter.

 

They are local too, HQ is right in Baltimore. Haven't tried it yet, but planned to once back on my feet.

 

Try it and let us know your results.
Personally i think it's Snake oil. There's better things to spend your money on. Look into the cost of it and the "claimed 2 mpg" against savings. Not worth it.
I emailed them to try to get Dyno results or some other hard proof to back up their claims. Nothing!

 

I ran about two bottles never saw an increase in mileage. truck did run a little smoother with a little more power. Overall i dont know if its worth it...