If you're running a 2-stroke engine, your choice of 2-stroke engine oil is important. Castrol® 2 cycle engine oil reduces harmful deposits and controls exhaust smoke.
Two cycle engines, also known as two stroke engines, have a lot to be said for them. Their simple design delivers a great power-to-weight ratio that makes them ideal for everything from scooters to snowmobiles and ATVs.
They are also pretty unusual engines, in that you add the engine oil to the gas tank. You might think that makes your choice of oil less important. The fact is, if you want to control exhaust smoke and reduce harmful deposits, you need the best two-cycle engine oil there is.
Castrol® 2T provides superior protection for 2-stroke engines. It is a mineral-based motorcycle oil designed for use in 2-stroke motorcycles, scooters, ATVs and lawn equipment. Castrol 2T is the go-to motor oil for 2-cycle engines.
Castrol Super Snowmobile 2T provides superior protection for 2-stroke snowmobile engines, thanks to its ability to flow readily at temperatures as low as minus 40C.
Two-stroke or two-cycle engine oils are special motor oils that are designed for use in two-cycle (two-stroke) engines. When using an oil for a two-cycle engine, it is important to use the correct two-cycle oil or else it could damage the engine due to the differences between a two-cycle and four-cycle engine.
Two-cycle engines and four-cycle engines are both used in mechanical equipment, but the type of equipment determines the better engine to use. Where four-cycle engines are commonly used in larger applications such as automobiles, motorcycle, boats and larger engine applications, two-cycle engines are often used in smaller engine applications such as lawn equipment and scooters.
Two-cycle engines do not contain valves due to the engine mechanics of how a two-cycle engine works. Two-cycle engines fire every revolution. Fuel and oil are mixed with air and compressed, then pushed toward the spark plug. The spark plug fires and sends the piston down to complete the compression cycle. As the compression occurs, a reed valve opens that removes the fuel/oil/air mixture and the cycle begins again.
A key difference between a four-cycle engine oil and a two-cycle engine oil is that a four-cycle engine oil does not mix the fuel and oil. Four-cycle engines operate in the following manner:
Since two-stroke engines are often smaller, lighter and simpler than four-stroke engines; they deliver a higher power-to-weight ratio and are often used in smaller equipment applications such as lawn mowers and other garden equipment and also in small engine vehicles (scooters, jet skis, ATF’s and small outboard engines).
Two-stroke oils have similar additives and base oils than four-stroke oils, but there are some significant differences. As previously mentioned, two-stroke oils mix with gasoline when it is used in a two-stroke engine. That means that the oil is consumed at a much higher rate than four-stroke oils (which are not consumed as part of the lubrication in a four-stroke engine). Also, since two-stroke oils are consumed, the ash content of two-stroke engine oils are significantly lower and may contain a significantly different additive package than four-stroke oils.
As with any engine oil, it is vital to use the correct lubricant for your engine. Four-stroke engine oils should not be used in two-stroke applications (and two-stroke engine oils shouldn’t be used in four-stroke engines). Two-stroke engine oils are generally lighter, lower and ash and made to be consumed in two-stroke engines, so they do not last as long as four-stroke engine oils. Always check your owner’s manual for the correct lubricant for your engine. Another great source for the correct lubricant for an application is Castrol’s Oil Selector.