Internal combustion engines used in lawn mowers come in two and four strokes. What kind of oil should I put in my lawn mower? ![]() In the future, the replacement is done according to the regulations after a certain number of engine hours, or it is drained at the end of the summer season and a new one is poured in the next year. The first refueling is intended to run in the engine after five hours of operation, it is replaced, after which it is possible to work on the new grease for the whole season. For lawn mowers, most often a cold start is not required in the cold, which greatly reduces the service life of a car engine and requires low-temperature properties from lubrication. On the other hand, lawn mowers operate mainly in positive ambient temperatures and the load on their engines is not as severe as on car engines. Due to this design, the viscosity of the lubricant must be sufficient to retain the oil film on the parts, while it must not be too thick to interfere with the movement of parts or form a hard crust. The engine oil in the mower engine is distributed by the crankshaft: it is scooped out of the crankcase and sprayed onto the parts.
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