Opti-Lube XPD All-Season Diesel Fuel Additive - 1 Gallon with Accessories (Hand Pump and Standard Accessory Bottles)

This is a top quality additive for my truck. For my truck, it consistently adds 2-3 MPG. This isn't the cheapest additive, but it will make your fuel pump last longer, truck burn cleaner, and add 10-15% to your mileage. With my 33 gallon tank I'm getting another 60-80 miles out of every tank.

Great product! Gone through 3 of these already

This stuff works good on my truck used it for a year now I’m on my 3rd gallon

This is the best diesel fuel additive hands down if you need something for your winter mix. It's not the cheapest, just the best. Keep the diesel engine clean and lubed with the winter anti-gel additive needed., The longer bottles are worth the extra and help you to put the fluid in. Would recommend a measuring cup or something to get the right amount. I just use a 4 oz glass measuring cup that you can find in the cooking section.

Good stuff, engine seems to run smoother and more quiet. I didn't realize how bad ultra low sulfur diesel fuel was for engines until I researched on line. You need to add cetane to the diesel.

Amazing

Product seems to work great but the bottles leaked on first use. Don’t waste your money on the dosage bottles imho.

Good stuff!