Choosing the right gas lawn mower can be the difference between a tedious chore and a satisfying yard maintenance session. With the power and runtime that cordless models can’t always match, gas mowers remain the go-to for tackling larger properties, thick grass, and varied terrain. The key is finding a machine that matches your yard’s specific challenges and your personal comfort needs.
From self-propelled models that do the hard work for you to versatile 3-in-1 systems that handle clippings your way, the options are extensive. This roundup cuts through the noise to present nine of the best gas lawn mowers, highlighting their key features to help you make an informed decision for a perfectly manicured lawn.
The Best Gas Lawn Mowers for a Pristine Yard
- YARDMAX 22 in. 201cc Select PACE 6 Speed CVT High Wheel RWD
- Self Propelled Gas Lawn Mower 20 Inch, 141 cc 4-Cycle Engine
- PowerSmart Gas Lawn Mower 22-Inch, Self-Propelled with 3-in-1 Mulching System
- SENIX Gas Lawn Mower, 22″ Self Propelled Gas Powered Lawnmower
- AMERISUN Self-Propelled Gas Lawn Mower, 170cc OHV Engine
- PowerSmart Gas Lawn Mower 21-Inch 144cc OHV Engine 2-in-1 Push Mower
- AMERISUN 21″ Gas Lawn Mower, 3-in-1 Gas Push Mowers, 144cc 4-Stroke Engine
- AMERISUN 21-Inch 3-in-1 Gas Lawn Mower, Self Propelled with 170cc Engine
- Toro 20333 21-Inch Recycler Gas Lawn Mower with Personal Pace
YARDMAX 22 in. 201cc Select PACE 6 Speed CVT High Wheel RWD

The YARDMAX mower stands out with its industry-leading CVT (Continuously Variable Transmission), which offers superior speed control. By simply selecting one of the six speeds, you can perfectly match the mower’s pace to your natural walking speed, making it exceptionally easy to use on flat, sloped, or uneven terrain.
Aggressive spike tread patterns on the rubber tires provide significant traction and maneuverability, while the high 8-inch front and 11-inch rear wheels glide over obstacles. For maintenance, a dedicated deck cleanout port allows for easy cleaning of the underside after use.
Self Propelled Gas Lawn Mower 20 Inch, 141 cc 4-Cycle Engine

This model is a strong contender for those seeking a lightweight yet powerful self-propelled mower. Its 6-speed control lets you effortlessly set a pace between 0.5 and 4 mph, ideal for various terrains. The rear-wheel drive with 11-inch wheels ensures stability, and the large 50L bagger is capable of handling substantial debris.
Durability is a key feature, thanks to the 16-gauge stamped steel deck that resists rust. A single-lever control adjusts the cutting height across seven levels to adapt to seasonal grass growth, and the low-profile blade housing helps prevent scalping for a consistently even cut.
PowerSmart Gas Lawn Mower 22-Inch, Self-Propelled with 3-in-1 Mulching System

PowerSmart pairs a reliable USA-made Briggs and Stratton 150cc engine with user-friendly features. The engine includes ReadyStart technology for easy starting without priming, and the entire mower assembles quickly out of the box with no tools required.
The rear-wheel drive self-propelled system provides improved traction on hills and uneven ground. You have the flexibility to choose your preferred cutting style with the 3-in-1 system, which offers mulching, rear-discharging, or bagging into the included 1.4-bushel capacity bag.
SENIX Gas Lawn Mower, 22″ Self Propelled Gas Powered Lawnmower

Equipped with a dependable Briggs & Stratton 163 cc engine and a Prime n Pull start, the SENIX mower is built for consistent, powerful performance. The rear-wheel drive and single-speed operation make it straightforward to use for efficient mowing of small to medium-sized yards.
The versatile 3-in-1 cutting system allows for mulching, side discharge, or rear bagging with the included 19-gallon bagger. When the job is done, the foldable handle and vertical storage design help you save considerable space in your garage or shed.
AMERISUN Self-Propelled Gas Lawn Mower, 170cc OHV Engine

This AMERISUN mower is built to handle demanding conditions with its high-performance 170cc OHV engine. A forced air-cooling system ensures the engine runs efficiently even under heavy load, making it suitable for tackling thick, uneven grass without overheating.
The 21-inch steel deck is designed for durability and covers more ground per pass, reducing overall mowing time. The 3-in-1 function gives you the choice to mulch, side-discharge, or collect clippings in the large 1.4-bushel rear bag for a clean finish.
PowerSmart Gas Lawn Mower 21-Inch 144cc OHV Engine 2-in-1 Push Mower

For those who prefer a push mower, this PowerSmart model offers a straightforward and powerful solution. Its 144cc 4-cycle OHV engine, equipped with a recoil starter and auto choke, delivers strong power for a reliable start and consistent cutting performance.
The all-steel deck is built to last and combines both mulching and bagging capabilities. The 21-inch heavy-duty blade allows you to mow more in less time, making this an efficient choice for smaller, flat lawns where a self-propelled system is not necessary.
AMERISUN 21″ Gas Lawn Mower, 3-in-1 Gas Push Mowers, 144cc 4-Stroke Engine

This push mower from AMERISUN provides steady performance from its 144cc OHV 4-stroke engine, which features an auto choke for simplified starting. The air-cooling system ensures lasting operation, making it a durable option for regular yard maintenance.
The reinforced 21-inch steel cutting deck is built to handle tough mowing jobs and deliver smooth, even cuts. Excellent traction and smooth movement are provided by the large 7-inch front and oversized 10-inch rear wheels with wide treads, making it easy to navigate rough terrain.
AMERISUN 21-Inch 3-in-1 Gas Lawn Mower, Self Propelled with 170cc Engine

This self-propelled AMERISUN model is built for strength with its powerful 170cc 4-stroke OHV gas engine, providing reliable power to cut through tall, thick grass in medium and large yards. The versatile 3-in-1 design supports side discharge, mulching, and rear bag collection.
The self-propelled drive system is complemented by a high-wheel design, featuring large 10-inch rear wheels and 7-inch front wheels. This configuration makes the mower exceptionally easy to maneuver across uneven terrain, hills, and slopes with minimal effort from the user.
Toro 20333 21-Inch Recycler Gas Lawn Mower with Personal Pace
The Toro Recycler is a well-regarded name in lawn care, known for its innovative Personal Pace system. This feature automatically adjusts the mower’s speed to your walking pace, providing an intuitive and effortless mowing experience without the need to manually set a speed.
Its signature Recycler cutting technology finely mulches grass clippings and returns them to the lawn as natural fertilizer, promoting a healthier turf. Built with a reputation for reliability and a powerful engine, this mower is a top choice for homeowners seeking a high-performance, user-friendly machine.
Buying Guide: What to Look For in the Best Gas Lawn Mowers
Choosing the right gas lawn mower can feel like a big decision. I have been through it myself, standing in the aisle, wondering which one is truly the best fit for my yard. It is not just about power; it is about matching the machine to your specific grass, terrain, and how much effort you want to put in. Let me walk you through the key features I consider when looking at the 9 best gas lawn mowers with key features.
First, think about your yard’s size and layout. For a small, flat yard, a simple push mower with a 21-inch deck is often perfect. It is maneuverable and easy to store. If your property is larger, maybe half an acre or more, a self-propelled model is a game-changer. It does the hard work of pushing for you, which is a huge help on hills or long stretches. For really large or complex lawns, a riding mower might be the right call, but that is a whole different category.
Next, pay close attention to the engine. I look for a reputable brand like Briggs & Stratton or Honda. Engine power is measured in cubic centimeters (cc), and generally, more cc means more power. For tough grass or slight inclines, a engine with at least 140cc is a good starting point. Also, check the starting system. A traditional recoil pull-start is common, but an electric start with a battery is incredibly convenient, especially on a cool morning.
The mower deck is another critical part. This is the housing that covers the blade. Most residential mowers have a 21-inch deck, which is a standard width. A wider deck cuts a larger swath, so you finish the job faster. The deck material matters, too. Steel decks are durable but can rust, while aluminum decks are rust-proof but can be more expensive. Look for adjustable cutting heights that are easy to change. Being able to quickly switch from a short cut to a longer one for the health of your grass is a feature I use all the time.
Finally, do not forget about the extra features that make life easier. A good mulching function chops the clippings finely and returns them to the lawn as fertilizer. A side-discharge chute is handy for dealing with very tall grass. And a bagging system is great for keeping your lawn tidy if you do not like seeing clippings. Some mowers even have all three functions in one, which gives you the most flexibility. Considering these points will help you find a mower that you will be happy with for years.
Frequently Asked Questions
How often should I change the oil in my gas lawn mower?
I make it a habit to change the oil at least once per mowing season, usually in the spring before the first use. If you use your mower very frequently, you might need to do it more often, like every 25 hours of operation. Always check your owner’s manual for the specific recommendation for your model. Fresh oil is the lifeblood of the engine and is crucial for keeping it running smoothly as part of your gas lawn mower’s maintenance.
What is the difference between a push and a self-propelled mower?
A push mower requires you to provide all the physical force to move it across the lawn. It is lighter and often less expensive. A self-propelled mower has a drive system that turns the wheels for you. You basically just guide it and control the speed. It is much less physically demanding, especially on hills or uneven ground, but it is also heavier and costs more.
Can I use ethanol-free gas in my mower?
Yes, and I highly recommend it if you can find it. Ethanol in standard gasoline can attract moisture and cause problems in small engines, like clogging the carburetor, especially if the fuel sits for a long time. Ethanol-free gas is more stable and better for the long-term health of your mower’s engine. If you cannot find ethanol-free, using a fuel stabilizer with regular gas is a good alternative.
Why won’t my gas mower start after winter storage?
This is probably the most common problem I hear about. Nine times out of ten, it is caused by old gasoline that has gone bad and gummed up the carburetor. To prevent this, I either run the engine until the fuel tank is completely empty before storing it, or I add a fuel stabilizer to a full tank and run it for a few minutes to circulate the treated gas. Checking the spark plug and air filter are also good troubleshooting steps.
Is a more expensive gas mower always better?
Not necessarily. While a higher price often gets you a more powerful engine, a durable deck, and convenient features like electric start, you need to consider what you actually need. If you have a small, flat yard, a basic, well-reviewed push mower might be all you need. The best mower for you is the one that matches your yard’s demands without paying for capabilities you will never use.