What are the most common mistakes when changing the oil of a lawn mower?

Common mistakes when changing the oil of a lawn mower

Changing the engine oil of a lawn mower is an important maintenance measure to keep it in good operating condition. Although changing the engine oil of a lawn mower is relatively simple, in actual operation, people often make some mistakes, which may cause damage to the engine of the lawn mower. The following are some of the most common mistakes when changing the oil of a lawn mower, summarized based on the common errors in car oil changes:

The amount of engine oil added is not necessarily the larger the better

Many people think that the more oil they add when changing engine oil, the better. This is a common misunderstanding. In fact, the amount of engine oil added should be strictly in accordance with the markings of the lawn mower manufacturer. If too much engine oil is added, it will lead to a series of problems, such as the formation of carbon deposits, increased detonation probability, increased stirring resistance, and increased internal pressure causing oil leakage from seals, etc. For lawn mowers, excessive engine oil will be overly stirred by the crankshaft when the engine is running, increasing the resistance to the crankshaft's rotation and reducing the engine's output power. In addition, excessive engine oil may also seep into the combustion chamber to participate in combustion, causing the lawn mower to burn oil, emit blue smoke, increase fuel consumption, and increase carbon deposits in the combustion chamber, further increasing the resistance of the piston movement and reducing the engine power.

2. Ignoring the selection of engine oil viscosity

The selection of engine oil viscosity is crucial to the performance of a lawn mower engine. Vehicle manufacturers (including lawn mower manufacturers) have clear recommendations on the viscosity of engine oil, which are derived from a comprehensive consideration of multiple factors such as engine characteristics and working environment. If the wrong viscosity of engine oil is chosen, it is just like putting ill-fitting shoes on an athlete, which will seriously affect the performance of the engine. Engine oil that is too thin cannot form an effective oil film at key parts, providing insufficient protection for the engine and accelerating the wear of components. However, overly thick engine oil will increase the internal operating resistance of the engine, affecting power output and potentially raising fuel consumption by 2%. Therefore, when changing the oil of a lawn mower, it is necessary to choose the oil with the correct viscosity.

3. Missed filter replacement

The function of the oil filter is to filter out impurities and contaminants in the engine oil, just like a "mask" for a car engine. If only the engine oil is changed but the filter is forgotten to be replaced, over time, the filter screen of the filter will be clogged and unable to effectively filter impurities. These impurities, when mixed into the engine oil and circulating within the engine, can cause damage to various components of the engine. For instance, they can scratch the surfaces of delicate parts, significantly reducing the engine's lubrication effect and seriously affecting its normal service life. Therefore, when changing the oil of the lawn mower, the oil filter should also be replaced at the same time.

4. Only replenish the engine oil without changing it

Some car owners are accustomed to frequently checking the level of engine oil so as to replenish it in time to ensure the normal operation of the engine. However, this method cannot fully meet the requirements of engine oil maintenance. Although replenishing engine oil can make up for the insufficiency of the oil quantity, it cannot compensate for the loss of the oil's lubricating performance. As time goes by, engine oil will gradually age and its lubricating performance will gradually decline. Therefore, it is the correct approach to change the engine oil regularly For lawn mowers, merely replenishing the engine oil without replacing it can only make up for the deficiency in oil quantity but not the loss of its lubricating performance. The same applies to the maintenance of lawn mowers.

5. Choosing low-quality engine oil or ignoring the expiration date of the engine oil

The engine requires high-quality engine oil to protect it. Low-quality engine oil cannot provide good lubrication, cooling and cleaning performance for the engine. Long-term use will accelerate the wear of internal engine components and shorten the engine's service life. In addition, engine oil also has a specific shelf life. The chemical and physical properties of expired engine oil will change, and all indicators will decline, failing to meet the normal operation requirements of the engine. When changing the engine oil of a lawn mower, it is essential to carefully check the production date and shelf life of the oil to ensure that the oil used is within its validity period