STA-BILSTA-BIL Diesel Fuel Stabilizer And Performance Improver - Keeps Diesel Fuel Fresh For Up To 12 Months - Lubricates And Cleans The Fuel System - Treats 320 Gallons, 32 fl. oz. (22254)

Excellent product

This works well in my 5.9L Cummins. Used it for years with no issues.

I have a 1st gen Dodge Cummins diesel pickup truck. I bought STA-BIL Diesel because it helps deal with any water that might get into the fuel, dispersing it safely so it doesn't cause rust or engine problems. I also really liked the squeeze-to-measure bottle. It's simple, clean, and easy to use. Each 1 oz treats 10 gallons of fuel, so measuring for my 40-gallon tank is straightforward.

Good stuff. Wish it came in a smaller container. This is probably more than I'll use before it expires.

I've always used Lucas oil stabilizers and now recently fuel stabilizers and octane boosters. Its great in engines and as a fuel additive. Engines run hard on Lucas.

Seems to do a good job of keeping the black tank clean

good product use it every tank

A must have for anyone who uses a diesel engine on a boat. My Ericson 38 never had problems with it.