two stroke diesel engine is used in cargo ships as cross head type engines, two stroke petrol engines used in two wheelers.
The fuel used for both four stroke and two stroke engines is the same: gasoline. Two stroke engines require a small amount of two stroke oil be added to the fuel.
They are - most inboard engines are 4-stroke. But as with land vehicles, you can get a smaller engine with 2-stroke (or more horsepower with a smaller engine) so the small engines like some outboards tend to be 2-stroke.
Two stroke engines are used in dirt bikes, ATVs, snowmobiles, etcetera. You can find them in most small recreational vehicles like that. A lot of outboard boat motors are also two stroke.
The difference between 2stroke engines and 4-stroke engines are pretty much the same regardless of where the engine is used. To read about it, check out the related question below.
Two stroke engines will create a lot of visible smoke pollution and also more noise than four stroke engines. For these reason, many countries have required that all new motorcycles should be four-stroke.
very large is the keyword here. for a very large engines that runs large machines, we need high power engines. two-strike cycle engines produce more power than 4-stroke cycle engines. that's why they are used. as they produce more pollution than 4-strokes, they must be limited to small spaced engines machines or large machines that required very high power.
Some two stroke engines have 4 valves, Detroit Diesel 71 series and 53 series engines for example. Most small 2 stroke engines have no "Valves" at all in the sense of the "POP" valve used in four stroke engines. Some people feel these engine has one valve because the piston acts as the valve covering the ports cut into the cylinder walls.
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GM did make 2 stroke diesel engines used in trucks and busses..they were noisy, requierd a super charger to run, loved to drink but very powerful.
To deliver fuel and oil too the cylinder.
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