Evinrude E-NATION, for those dedicated to water, power, fishing and fun
Posts: 1
Registered: ‎04-05-2013

Gas tanks

What is the best way to keep the gasoline Fresh

With gas treratment ?

Full tank of gas ?

Almost empty tank and fill up before going out ?

How long the gas stay fresh ?


I ask these questions, because every Dealer have a different opinion.


Appreciate your answers.....



Posts: 9,517
Registered: ‎07-14-2011

Re: Gas tanks

Unless you are using your boat almost daily, it is best to use a fuel stabilizer following the directions for mixing to the letter. If a certain amount is called for, more does not mean better !


Evinrude's 2+4 Fuel Conditoner is a recommended stabilizer. For storage, then the mixing proportions are different.


Keeping your tank close to full minimizes the air circulation inside the tank and the resulting condensation buildup as the temperature changes.


Untreated gasoline starts to degrade within a few weeks. Exposure to air and to warm temperatures speeds up deterioration. Ethanol fuels will absorb a certain amount of moisture before the water and ethanol combine and settle to the bottom of your tank. Be sure to have a water-separatiing filter installed inside the boat to catch small amounts of moisture that may find its way into your fuel system.




"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 



The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.