Shopping Cart

Your cart is empty.

Your cart is empty.

Gumout 510011 Multi-System Tune-Up, 16 oz. (Pack of 2)

4.9 (5) Write Review
Free shipping on orders over $29.99

$15.96

$ 7 .99 $7.99

In Stock

About this item

  • The information below is per-pack only
  • Use in gas, ethanol/flex fuel, diesel & biodiesel engines
  • Restores fuel economy and improves engine performance
  • PEA (polyetheramine) effectively removes carbon deposits from the entire fuel & oil systems
  • Stabilizes fuel and oil for up to 2 years
  • Helps pass emissions testing, Lubricates upper cylinders, and Fights ethanol related rust & corrosion


All engines develop performance issues over time, whether they're gas, diesel or ethanol. Carbon deposits reduce performance and fuel economy. Water and ethanol corrode key engine parts. Gumout Multi-System Tune-Up is the most advanced treatment for all types of engines, from cars to lawn mowers. It cleans and conditions using premium ingredients, like PEA (polyether-amine), to help maximize performance, fuel economy and engine life. Multi-System Tune-Up can be added in the gas tank, the crankcase or via induction. Directions: Add to fuel: For optimal results, add entire can to the tank. Fill the tank with fuel and run to near empty before refueling. One pint treats 18-21 gallons of all types of gas or diesel fuels. Add to oil: Add one ounce per quart of oil. Immediately start engine and run for 5-10 minutes to mix completely. Vacuum Intake Cleaner: May be used with engine decarbonizing equipment through the vacuum system to clean intake manifold, valves and combustion chamber. Follow recommended mechanical procedures for the equipment. Small 4-cycle engines: Add to gasoline using ¾ to 1 ounce per gallon of fuel. Small 2-cycle engines: Add to gasoline using ¾ to 1 ounce per gallon of fuel. Add 2-cycle oil as recommended by engine manufacturer. Gumout Multi-System Tune-Up does not replace 2-cycle oil.


John Romesburg
Reviewed in the United States on January 29, 2025
Works great and got my snow blower working great again.
Jon
Reviewed in the United States on January 24, 2025
A good all round additive
atom mccambridge
Reviewed in the United States on September 18, 2024
High level of PEA for superior cleaning.
rotwiler
Reviewed in the United States on June 13, 2024
My truck, a 2013 Ram hemi, rubs great. But years ago I ran 2 bottles of fuel system cleaner and right before tank was empty the truck had a noticeable pickup in power I did not know I was missing. So ever since, I run 2 bottles in a tank every 6 months. The multi system cleaner has worked great. Most my cars/trucks(5) I cannot tell, but the Ram it makes a great improvement. Also is a good one for my riding and self propelled lawn mowers.
Warrior Poet
Reviewed in the United States on December 31, 2024
Would buy Again