Diesel Kleen + Cetane Boost 64-oz 6/1 per Case

Here's my experience with this additive: I track mileage and fuel economy in real time on my old semi. I noticed a dip in fuel mileage and overall performance this month, probably due to a bad quality diesel. So I tried to remedy this situation by using a cetane booster. Without this additive, I average 5.5 mpg. With the additive, I gain 0.5 to 1 mpg depending on terrain and weight. It's significant when running so many miles and fueling so many gallons. It also has the benefit of keeping things cleaner and improving efficiency. There is an obvious difference, and the truck behaves better overall. I add half a container to each tank (~100 gal per tank- there are two tanks). Worth every penny.

This stuff is the best additive you can buy. The Cummins endorsement is huge, they test this very hard. FWIW, also use 2 stroke oil, 1 oz /gallon, to add lubricant to injection pump %26 injectors. Since 2007, lubrication/silver gone. Without this , you may kiss your $3k CP 3 or 4 pump , bye ,bye.😐😑.

Walmart cut the price of this item, so I bought two jugs.i own a 3025 Chevy suburban with the 3.0 L Duramax diesel engine. And yes I baby this vehicle! I want it to last. So everything I read says take care of the fuel pump! So from what I have read this fuel additive is rated very highly, so I add it to my diesel fuel every time I fill up in summer time, it says it helps mileage too. I know tge quality of diesel fuel can really vary, I find cenex is high quality fuel and most others that have the sticker top tier are quality too. I bought a special long spout when dumping additives into tank. Those cap less fuel fills are tricky, watch that U don't try dumping additives in, by just using say a screw driver to push open the fill spout! There is a second spring loaded stopper and if U don't pry it open your additive will end up on the ground under your vehicle!

Was having to replace fuel pump on my Kubota tractor every year until i started using Diesel Kleen. The current pump is on year 6 and still going strong. (All pumps were identical)

I've started using this in a 2019 Cummins ISX Efficiency series motor in a 2019 Lonestar and I actually think it works. I use a gallon a week just to try and I like it.

Hells to the yeah, this stuff rocks. It's the only fuel additive I trust to put in my dodge ram Cummins, and it does not disappoint, can't go wrong here A !!

The lids on their containers leak...every one of them. Once they're opened, you cannot tighten them enough to prevent them from leaking there chemicals all over in your truck.

Great diesel additive to use in the warmer months. Improves lubricity and cetane. I have been using this for 20 years.

great value increase hp run smoother

I put 16 oz in every month when I fill up my diesel MB Sprinter...