Does 2-stroke gas evaporate?
The lighter components of gasoline evaporate very quickly, in as little as 2 weeks. Ever leave a gas can open in your garage, and smell the gasoline when you walk into the garage? That smell is what used to be your throttle response and octane rating.
What kind of oil to use in a Mercury outboard?
Formula 50-D oil can be recommended (at a 50:1 mixture) for use in earlier Mercury outboards regardless of year of manufacture. Formula 50-D also can be used in other brand outboards (at a 50:1 mixture), provided that the manufacturer recommends use of a 50:1 oil mixture.”
What kind of oil does a Mercury autoblend use?
– Mercury or Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil. Autoblend models have an oil reservoir mounted inside the boat that automatically blends oil with the fuel at a constant ratio of 50:1; 2-stroke oil is added to the reservoir and does not need to be mixed with the fuel (unless required for running-in)
Can a 7.5HP engine use a 50 / 1 mixture?
In years past OMC issued a bulletin that all their engines could use the 50/1 mixture, excepting the 1957 7.5hp model, and many boaters were using that 50/1 mixture in all the older models regardless of horsepower. I lost track of that bulletin unfortunately and if anyone has it, I’d appreciate having a copy of it.
What should the fuel to oil ratio be on a 1964 Evinrude?
Stick with 50:1 for the 1964 and newer motors. Models that have working VRO Pumps (Variable Ratio Oilers) do not require oil to be mixed with fuel. The pump is doing the mixing. Below is some additional information from our friend and frequent forum contributor Joe Reeves:
What kind of fuel does a Mercury outboard use?
Pre-Mix Models Fuel/oil ratio: 50:1 (50 parts fuel to 1 part oil) Oil requirement: – Certified TC-W3 2-Stroke Outboard Oil – Mercury or Quicksilver Premium 2-Cycle TC-W3 Outboard Oil
What kind of oil do you put in an outboard motor?
If you are using an older model two-stroke outboard motor, here is some advice for mixing fuel: As a general rule of thumb, add three ounces of Mercury 2 stroke premium outboard motor oil for each gallon of gas. Pour the gas and oil into a singular container.
– Mercury or Quicksilver Premium Plus 2-Cycle TC-W3 Outboard Oil. Autoblend models have an oil reservoir mounted inside the boat that automatically blends oil with the fuel at a constant ratio of 50:1; 2-stroke oil is added to the reservoir and does not need to be mixed with the fuel (unless required for running-in)
What’s the model year of a Mercury outboard?
Mercury did not publish model year information for 1997 & newer outboards. The year is now normally noted on the serial number sticker. NOTE: Mercury DOES NOT Use Model Years For Parts Lookup.