Cetane is the fuel property that is an inverse function to reduce fuel ignition delay.  A fuel treated with Gumout All-In-One Diesel, which contains a good cetane Improver additive, will have a higher cetane number and will perform shorter ignition delay.  The benefits include lowering exhaust emissions, reducing noise, and reducing white smoke at start […]

Lubricity is the fuel property that lubricates the fuel injector and fuel pump to prevent wear in the diesel delivery system. A fuel treated with Gumout All-In-One Diesel, which contains a good Lubricity Improver additive, will have higher lubricity performance.

When cold, diesel fuel wax crystals can accumulate on fuel filters and restrict fuel flow and promote fuel starvation.  That will result in a loss of power, engine stalling, and the inability to restart. A fuel treated with Gumout All-In-One Diesel, which contains a good Cold Flow Improver additive, will have the capability to fight […]

It does not matter.  Just follow the treat rate in the Direction:  Use 8 ounces of Gumout All-In-One Diesel Complete Fuel System Cleaner to treat 20 gallons. Use 16 ounces to treat 40 gallons. Use 32 ounces (one full bottle) to treat 80 gallons/302 liters.

Yes, it does, up to B20.

Use 8 ounces of Gumout All-In-One Diesel Complete Fuel System Cleaner to treat 20 gallons. Use 16ounces to treat 40 gallons. Use 32 ounces (one full bottle) to treat 80 gallons/302 liters.