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For example, an oil rated 5W flows better at lower temperatures than a 10W oil. The first rating-the “W” (for “winter”) after the number-represents the cold temperature viscosity.Viscosity is based on a scale created by SAE International, formerly known as the Society of Automotive Engineers (SAE). Oil with a low viscosity remains thinner at lower temperatures, promoting better flow through the engine, making it easier to start and more efficient to run. Higher viscosity oil is better at protecting and lubricating the engine when operating at high temperatures and at peak load (high RPMs). Viscosity refers to the thickness of the oil. The motors on electric snowblowers don’t require engine oil.
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Although some 4-cycle engine oils are labeled for “small engines,” it’s actually the same oil commonly used in cars and trucks.ĭon’t use 2-cycle engine oil in a snowblower, as it will not properly lubricate the engine and will damage it. The oil container has “4-cycle” or “2-cycle” clearly printed on the label. Identifying the right type of engine oil is easy. This type of small engine uses an oil and gas mixture that goes into one tank. Smaller engines, such as those on a chainsaw, have a 2-cycle engine. The gas fuels the engine, while the oil lubricates it, each from its own tank. Gas-powered snowblowers use 4-cycle engine oil, which is oil for engines that use separate tanks for gas and oil, much like a car engine. Ahead, learn how viscosity, oil type, and other factors affect engine oil performance in a snowblower.
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The right maintenance engine oil can make the difference between a snowblower that starts right up and one that’s sidelined with a gummed-up engine. Photo: What to Consider When Choosing the Best Oil for Snowblowers