2 stroke motor oil | Outboard Motor Oil

Two and Four Stroke Oil Formulas

Yesterday we tackled the reasons why 2 cycle and 4 cycle oils are not interchangeable. Today I will explain how the formulas differ. For starters, 4 cycle oil is specifically manufactured with additives, like viscosity index improvers, to inhibit oil consumption. In other words, the formula makes oil harder to burn.

On the other hand, 2 stroke oil is specifically formulated to burn away, leaving minimal residue on spark plugs, cylinders, and exhaust ports. Another aspect of the formula is to inhibit pre-ignition. The formula also protects against rink sticking and crankcase sludge.

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Mixing Fuel for a Mercury Outboard Motor

Older two-stroke Mercury outboard motors require hand mixing of oil and gas. Newer models like the OptiMax motors have an oil injection system that keeps the ratio of gas to oil correct. 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. Close the gas container tightly and then shake the container vigorously to ensure that the oil and gasoline mix thoroughly. Once you are confident that the solution is properly mix, add it to your boat’s fuel tank.

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Environmentally Friendly Boating Tip 3

Topping off has long been a no-no at filling stations nationwide. By trying to get that last little bit of fuel into your vehicle you can end up creating dangerous spills as well as excess and unnecessary fumes and emissions. When you decide not to take the easy route and top off you save the environment and other motorists from unsafe conditions and exposure to fuel gasses ans fumes.

The same is true when it comes to our boats. When filling the engine we must take care not to top off since excess fuel may end up in our waterways. The last thing we want to do is exxpose marine life and marine environments to gasoline and oil. Learn the proper techniques for fueling your boat’s motor and prevent spillage, excess filling and overflow. Fuel slowly and responsibly to help prevent long term damage to the environment created by careless fueling practices. Using the proper 2 stroke oil will also help increase your fuel efficiency this season.

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