* VISUALLY EXPLAINED

Stale fuel, which is gasoline or diesel that has deteriorated over time, can have detrimental effects on engine combustion and overall engine performance. Here's why stale fuel is bad for engines and the importance of using a fuel stabilizer:

1. Reduced Combustibility: Over time, the volatile compounds in fuel, particularly gasoline, can evaporate. This reduces the fuel's combustibility, making it more difficult to ignite in the engine's combustion chamber. Stale fuel may not burn efficiently or at all, leading to poor engine performance.

2. Carbon Buildup: Stale fuel can leave behind deposits of varnish and carbon inside the fuel system and engine components. These deposits can clog fuel injectors, carburetor jets, and even the combustion chamber, impeding airflow and fuel delivery. Carbon buildup can lead to reduced power output, poor fuel efficiency, and increased emissions.

3. Engine Knocking: Stale fuel can also cause engine knocking or pinging. This occurs when the air-fuel mixture ignites prematurely due to uneven combustion, which can result from the altered properties of stale fuel. Knocking can lead to engine damage and reduced efficiency.

4. Starting Problems: Stale fuel can make it difficult to start the engine, especially in cold weather. This is because the reduced volatility makes it harder to vaporize and ignite the fuel. In some cases, it may lead to engine flooding or no start conditions.

5. Fuel System Damage: Stale fuel can be corrosive, causing damage to fuel system components, such as fuel lines, seals, and gaskets. It can also attract moisture, leading to fuel contamination and potential rusting of metal components in the fuel system.

6. Poor Fuel Efficiency: When engines run on stale fuel, they often experience reduced fuel efficiency. Incomplete combustion and carbon buildup can lead to increased fuel consumption, resulting in higher operating costs and greater emissions.

Importance of Fuel Stabilizer:

A fuel stabilizer is a chemical additive specifically designed to counteract the effects of fuel deterioration. Here's why it's important to use a fuel stabilizer:

1. Preserves Fuel Quality: Fuel stabilizers are formulated to maintain the combustibility and quality of fuel over extended periods, helping to prevent varnish and gum formation, as well as evaporation of volatile compounds.

2. Protects Engine Components: By preventing deposits and contaminants from forming in the fuel system and engine, a fuel stabilizer helps protect vital components like injectors, carburetors, and combustion chambers from damage and corrosion.

3. Improves Engine Performance: Using a fuel stabilizer ensures that the engine gets a consistent and reliable fuel supply. This can lead to better combustion, reduced knocking, and improved engine performance and fuel efficiency.

4. Prevents Starting Issues: Fuel stabilizers make it easier to start engines, even after long periods of inactivity. This is particularly important for equipment that is not regularly used, such as seasonal equipment like lawnmowers or boats.

5. Extends Fuel Shelf Life: Fuel stabilizers can extend the shelf life of stored fuel, reducing waste and the need for frequent fuel replacement.

In summary, stale fuel is bad for engine combustion and can result in various issues, including reduced power, poor fuel efficiency, carbon buildup, and starting problems. Fuel stabilizers are essential additives that help preserve fuel quality, protect engine components, and ensure consistent engine performance. They are particularly important for stored equipment and for maintaining fuel during long periods of inactivity.

Here is a good quality stabilizer from Amazon: [ Ссылка ]

The issues around lack of engine function and Stale fuel is more common than most people think. During my years as a repair engineer I have encountered this issue very often indeed (most days, in fact). Although this subject in somewhat controversial at best, I have found that fuel is at its best for around 6 weeks after purchase. It then starts to go stale and this WILL cause engine starting and running issues eventually. Bog Down is something I have most certainly encountered with engines using stale fuel.

I hope you find it useful and please do check out my other videos on related topics.

Many thanks indeed

Craig Kirkman (Owner and Creator of the 'The Repair Specialist' Channel)

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