I'm runnin the RBP with cetane boost. The best thing about it is it bonds with the water in the tank and allows it to pass through. Add 1 ounce to 25 gallons i believe so the bottle does 500 gallons. No problems at all out of it and it has the squeeze measuring device on the bottle so ya just fill to the line and dump it in. It is a 5 point cetane booster.