The season is winding down, the leaves are turning, and your lawnmower has probably been put to rest for the winter. But before you tuck it away in the garage, you might be wondering: Do you really need to empty the gas tank? Leaving gas in the tank over winter can lead to problems, but is it really necessary to empty it? This article will explore the reasons why you might want to empty the gas tank and the best ways to do it safely. We’ll also discuss the potential downsides of leaving gas in the tank and offer some tips to help you decide what’s right for your lawnmower.
Short Answer: It’s generally recommended to empty the gas tank of your lawnmower before storing it for an extended period, especially during the winter months. Leaving gas in the tank can lead to problems like gumming and varnish buildup, which can damage your engine.
Why You Should Empty the Gas Tank
Gas Goes Bad
Gas isn’t designed to last forever. Over time, it breaks down and loses its volatility. This process is accelerated by exposure to heat and light. The result? Gum, varnish, and other deposits can form in your fuel system, clogging critical parts like the carburetor and fuel lines.
Engine Problems
Gum and varnish buildup can lead to a range of engine problems, including:
- Hard Starting: The deposits can clog fuel jets and restrict fuel flow, making it difficult to start your mower.
- Poor Performance: The engine may run rough or lose power due to reduced fuel flow.
- Engine Damage: In severe cases, the deposits can cause significant damage to the fuel system, requiring expensive repairs.
Storage Safety
Leaving gas in the tank can also be a safety hazard. Gasoline is flammable and can pose a fire risk, especially in enclosed spaces.
How to Empty the Gas Tank
Safe and Effective Methods
- Use the Lawn Mower: The easiest and safest way to empty the gas tank is to simply run the lawnmower until it runs out of fuel. This ensures the gas is consumed and minimizes the risk of spills or leaks.
- Siphon Method: Use a siphon pump to transfer the gasoline from the tank to a container. You can purchase a siphon pump from most hardware stores. Be careful not to get gasoline on your skin or clothing, as it can cause irritation.
- Drain Plug: Some lawnmower models have a drain plug on the bottom of the tank. This allows you to drain the fuel directly into a container.
Important Tips for Emptying the Gas Tank
- Always work in a well-ventilated area. Gasoline fumes are harmful and can be dangerous.
- Wear eye protection and gloves. This will protect you from spills and contact with gasoline.
- Never dispose of gasoline down the drain. Gasoline is a hazardous material and should be disposed of properly. Contact your local waste disposal authority for information on how to properly dispose of gasoline.
Alternatives to Emptying the Gas Tank
Stabilizer Solution
If you’re not comfortable emptying the gas tank, you can use a fuel stabilizer. Fuel stabilizers are additives that slow down the deterioration process of gasoline, preventing the formation of gum and varnish.
- Follow the Instructions: Make sure to use the fuel stabilizer according to the manufacturer’s instructions.
- Use Fresh Gas: Always add fuel stabilizer to fresh gasoline, not to gas that has already been in the tank for a while.
Conclusion
Whether or not you need to empty the gas tank from your lawnmower is a decision based on your personal preference and the climate where you live. If you live in a cold climate and plan to store your mower for an extended period, emptying the tank is highly recommended. Even in warmer climates, emptying the tank or using a fuel stabilizer can help prevent engine problems and extend the life of your lawnmower. By following the tips outlined in this article, you can ensure that your lawnmower is properly stored and ready for action next season.
Frequently Asked Questions
1. Why should I empty gas from my lawn mower?
It’s best to empty the gas from your lawn mower for several reasons. Firstly, gasoline degrades over time, especially when it’s exposed to air and heat. This degradation can lead to engine problems, like difficulty starting and reduced power. Secondly, storing a full tank of gas increases the risk of a fire or explosion. This is particularly important if you’re storing your mower in a garage or shed, where there’s a higher chance of sparks or heat igniting the fuel. Finally, emptying the gas tank ensures a cleaner and more environmentally friendly approach to lawnmower maintenance.
2. How often should I empty the gas from my lawn mower?
While it’s generally good practice to empty your lawn mower’s gas tank after each use, this isn’t always necessary. If you use your lawn mower frequently, you can likely get away with emptying the tank every few uses. However, if you only use your mower occasionally, it’s best to empty the gas tank after each use to prevent the fuel from degrading. A good rule of thumb is to empty the gas tank every 30 days if the mower won’t be used.
3. How do I safely empty the gas from my lawn mower?
Emptying the gas from your lawn mower is a relatively simple process. First, ensure you’re working in a well-ventilated area, away from any heat sources or open flames. Next, use a siphon pump or a gas can with a spout to transfer the gas from your lawn mower’s tank to a gas container. Be sure to use a container specifically designed for gasoline storage, and seal it tightly after you’ve finished. Dispose of the gas properly, following local regulations.
4. Is it okay to leave gasoline in the tank over winter?
It’s generally not recommended to leave gasoline in the tank over winter, even if you’re using a fuel stabilizer. While stabilizers can help to slow down the degradation process, they don’t completely prevent it. Additionally, the cold temperatures can lead to condensation forming in the tank, which can mix with the fuel and cause further problems. It’s best to empty the tank and store your lawn mower in a dry, well-ventilated area.
5. What happens if I don’t empty the gas from my lawn mower?
Leaving gas in the tank for extended periods can lead to several issues. The fuel will degrade, becoming sticky and difficult for the engine to use. This can lead to starting problems, reduced power, and even engine damage. Additionally, the degraded fuel can clog the carburetor and fuel lines, requiring expensive repairs.
6. Can I put gas in my lawn mower if it has been sitting for a while?
If you haven’t used your lawn mower for a long time, it’s best to empty the old gas, clean the carburetor, and add fresh gasoline before attempting to start it. This will ensure that the fuel is fresh and won’t clog the engine or cause any starting issues. It’s also a good idea to check the spark plug and make sure the engine oil is at the proper level.
7. What should I do with the old gas after I empty the tank?
Old gasoline should not be poured down the drain or into the ground, as it is a harmful pollutant. The best option is to dispose of it properly at a local hazardous waste collection site. Many communities have designated drop-off locations where you can dispose of old gasoline and other hazardous materials safely. You can check with your local waste management agency for more information.