Gumout Multi-System Tune-Up is recommended for use in all types of engines. But other Gumout fuel additives can also be used in these engines. The treat rate should be ½ oz of Gumout product per gallon of fuel.

Gumout offers two products recommended for use in diesel engines: Diesel Fuel Treatment and Multi-System Tune-Up (formulated for use in gas, ethanol and diesel).

While most Gumout fuel additives are not recommended for vehicles designed to use E-85 fuel, Gumout Multi-System is recommended for use in flexible fuel vehicles. It is specifically formulated to work with all types of engines, including gas, ethanol and diesel.

No.

Gumout fuel additives are not recommended for use as a parts-cleaning solution. However, Gumout offers a line of maintenance aerosol products for cleaning specific parts of an engine or car and other nonpainted metal surfaces. See specific use instructions on each product.

Yes, Gumout Multi-System Tune-Up is formulated for use in all types of engine, including including gas, ethanol and diesel. Gumout additives do not replace the oil used in 2-cycle fuel and Gumout 2-Cycle Oil (or another specified oil) must also be added at the recommended level.

Yes. One bottle can be used in any gasoline tank up to 35 gallons.

Yes. Carburetor deposits are typically easier to clean than fuel injector deposits, and the chemistry used in the fuel injector cleaner will also effectively clean carburetors.

10 octane points = 1 octane level at the gas pump. Gumout Octane Booster increases the octane of fuel by 8 points or by 0.8 levels. Although this may vary depending on the amount of fuel treated and the source of the gasoline itself.