OIL CHANGE IN A 2020 MTZ BELARUS MOTOR CULTIVATION WITH A 13hp WEIMA ENGINE 09-N, SMORGON PLANT
WE CHANGE OIL IN BELARUS WALK-TILLERS. 25 engine hours, 100 transmission hours.
An engine hour is the time—one hour—that the engine has been running. But it's not that simple! An engine hour isn't exactly linear time. It's one hour of crankshaft operation (the revolutions measured on the tachometer) at a certain RPM or, for passenger cars, when the vehicle is moving at a certain (usually low) speed and in a certain gear.
Engine hours affect a number of indicators and recommendations for a specific vehicle, the most important of which are mileage, its relationship to engine life, and engine life itself, which is more accurately calculated in engine hours rather than simply in kilometers driven, oil change frequency, and so on.
What's the difference between mileage and engine hours? How can you calculate engine hours from a vehicle's mileage? Unfortunately, the answer to this question isn't so simple, or rather, nonexistent – it's impossible to accurately calculate the number of engine hours traveled based on the vehicle's mileage. However, it can be done relatively and approximately.
First of all, it's important to know that most vehicle manufacturers typically set roughly the same conditions for calculating engine hours, and 200-250 engine hours are typically equivalent to 15,000 kilometers traveled in the case of calm, measured driving with moderate traffic and generally idling (since in this case, the mileage doesn't increase, but the engine hours do). However, if, for example, you prefer aggressive driving at high engine speeds, are often stuck in traffic jams, or generally sit with the engine running (for example, warming up in a parked car), then this ratio shifts in favor of engine hours – meaning the latter becomes greater than the mileage. In this case, you'll drain the engine (and some other components) more quickly, requiring more frequent oil changes, and so on. If you mostly drive on the highway in a sedate manner, and your car rarely sits with the engine running and is in motion more often, then calculating engine hours based on mileage should be based on the assumption that with the same 200-250 engine hours, the mileage could reach 20,000 kilometers. However, if we're talking about regularly changing fluids and oils in a car based on this data, then it's precisely a case of "better safe than sorry."
You'll likely find the engine hours calculation (information on the calculation procedure: vehicle speed, crankshaft speed, etc.) in the owner's manual for your car model or in its detailed technical specifications.