Worx Petrol Lawn Mower Review
Worx is a well-known brand in the lawn and garden sector, particularly for its innovative battery-powered tools. This review examines their petrol lawn mower range, assessing power, build quality, and value against established competitors.
Quick answer
The Worx petrol lawn mower range offers reliable cutting performance and thoughtful features at a competitive price point. The WG779E is our top pick for its robust 139cc engine, self-propulsion, and excellent mulching capability, making it a strong choice for medium to large lawns.
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Research updated June 2026.

Worx WG779E
Powerful 139cc engine with reliable self-propulsion for medium to large lawns.
Worx WG779E
Best OverallPros
- Powerful engine handles thick grass
- Smooth self-propulsion system
- Excellent mulching performance
Cons
- Heavy at 31kg
- Grass collection bag could be larger
The Worx WG779E is a robust petrol mower designed for medium to large lawns. Its 139cc engine provides ample power to cut through thick and damp grass without stalling. The 46cm cutting width is a good balance between maneuverability and coverage, allowing you to finish the job in fewer passes.
Owner reviews consistently praise the self-propulsion system, which is easy to engage and offers variable speed control. The mower also features a single lever for adjusting cutting height across seven positions. While the grass collection bag holds a decent 50 litres, some users note it fills quickly in tall grass, requiring frequent emptying.
Worx WG799E
Best for Large LawnsPros
- Larger 51cm cutting deck
- Powerful 170cc engine
- Rear roller for striped finish
Cons
- Very heavy and bulky
- Higher price point
The WG799E is Worx's largest petrol mower, featuring a 170cc engine and a 51cm cutting width. This combination makes it ideal for larger lawns where cutting time is a priority. The larger deck allows you to cover more ground with each pass, and the engine has the torque to power through tall or wet grass without bogging down.
This model includes a rear roller for creating traditional striped lawn patterns, a feature often missing from budget-friendly mowers. The self-propulsion system is robust, but the mower's 38kg weight makes it a challenge to maneuver on slopes or uneven ground. Owner feedback highlights the sturdy build but notes that the large size makes storage and transport more difficult.
Worx WG739E
Best Budget PickPros
- Lightweight and easy to push
- Lower price point
- Simple, reliable design
Cons
- Not self-propelled
- Smaller cutting width
The WG739E is a no-frills push mower that offers good value for smaller lawns. Its 125cc engine is sufficient for regular grass cutting but may struggle with very thick or overgrown areas. The 42cm cutting deck is nimble and allows for easy navigation around flower beds and garden furniture.
This model is significantly lighter than its self-propelled counterparts, making it easier to store and transport. It includes a 40-litre grass collection bag and a single lever for cutting height adjustment. Owner reviews note that it starts reliably and is simple to maintain, but the lack of self-propulsion makes it tiring on larger lawns or slopes.
Worx WG749E
Best for MulchingPros
- Excellent mulching kit included
- Good engine power
- Variable speed self-propulsion
Cons
- Similar weight to WG779E
- Mulch plug can be fiddly to fit
The WG749E is specifically designed for homeowners who prefer mulching their grass clippings. It comes with a dedicated mulching plug that helps chop clippings into fine particles, which are then returned to the lawn as natural fertilizer. The 139cc engine provides sufficient power to handle the extra load of mulching without clogging.
This model shares the same 46cm cutting deck and self-propulsion system as the WG779E. The key difference is the inclusion of the mulching kit as standard, whereas it is often sold separately for other models. Owner reviews highlight the quality of the cut and the health of their lawns after regular mulching, though some find the mulching plug difficult to install securely.
Worx WG759E
Best for SlopesPros
- Rear wheel drive for better traction
- Good power for slopes
- Durable steel deck
Cons
- Heavier than front wheel drive models
- Less maneuverable on flat ground
The WG759E is distinguished by its rear-wheel drive system, which provides superior traction on slopes and uneven terrain. This makes it a safer and more effective option for lawns with inclines, as the drive wheels are positioned directly under the engine weight for better grip. The 139cc engine ensures the mower has enough power to climb hills without slowing down.
While the rear-wheel drive is excellent for slopes, it does make the mower feel less agile on flat ground compared to front-wheel drive models. The steel deck is durable and built to last, but it adds to the overall weight. Owner reviews from those with sloped lawns rate this model highly for its climbing ability and consistent cut quality on hills.
| Model | Best For | Engine | Cutting Width | Rating |
|---|---|---|---|---|
| WG779E | Best Overall | 139cc | 46cm | 4.6 / 5 |
| WG799E | Large Lawns | 170cc | 51cm | 4.5 / 5 |
| WG739E | Budget Pick | 125cc | 42cm | 4.3 / 5 |
| WG749E | Mulching | 139cc | 46cm | 4.4 / 5 |
| WG759E | Slopes | 139cc | 46cm | 4.2 / 5 |
What to Check Before Buying a Petrol Mower
Before purchasing a petrol mower, consider the size and terrain of your lawn. For lawns over 500 square meters, a self-propelled model with a cutting width of at least 46cm is recommended. For smaller lawns, a push mower like the WG739E may be sufficient and more cost-effective.
Check the engine displacement, as a larger engine (139cc and above) will handle thick and wet grass more effectively. Also, consider the type of drive system. Front-wheel drive is good for flat lawns, while rear-wheel drive is better for slopes. Finally, think about storage space, as larger mowers can be bulky.
Mistakes to Avoid
A common mistake is buying a mower with a cutting width that is too large for the garden, leading to poor maneuverability around obstacles. Another error is neglecting to check the availability of spare parts and service centers for the brand. Worx has good support, but it is worth verifying for your region.
Do not overlook the importance of a mulching capability if you want to fertilize your lawn naturally. Finally, avoid choosing a mower based solely on price; a slightly more expensive model with self-propulsion can save significant time and effort over the years.
FAQs
Are Worx petrol mowers reliable?
Yes, Worx petrol mowers are generally considered reliable based on aggregated owner reviews. They use reputable engines and offer solid build quality for their price range.
What engine do Worx petrol mowers use?
Most Worx petrol mowers use engines from established manufacturers like Briggs & Stratton or Loncin. The specific model varies by the mower's power rating.
Do Worx petrol mowers come with a warranty?
Worx typically offers a 2-year warranty on their petrol mowers. You should register your product on the Worx website to activate the warranty.
Can I mulch with a Worx petrol mower?
Yes, many Worx petrol mowers, such as the WG749E, come with a mulching plug. Other models may require the plug to be purchased separately.
Are Worx mowers self-propelled?
Some Worx petrol mowers are self-propelled, like the WG779E and WG799E. Others, like the WG739E, are manual push mowers.
What is the cutting width of Worx petrol mowers?
Cutting widths vary from 42cm on the budget model to 51cm on the largest model. The most common width is 46cm.
How do I change the oil in a Worx petrol mower?
You change the oil by tipping the mower on its side (air filter up) and draining the old oil into a pan. Refill with the recommended SAE 30 oil.
Are Worx mowers good for thick grass?
Models with a 139cc engine or larger, such as the WG779E, handle thick grass well. Smaller engines may struggle with very dense growth.
Can I use a Worx mower on a slope?
Yes, but for slopes, a rear-wheel drive model like the WG759E is recommended for better traction and safety.
Where are Worx petrol mowers made?
Worx products are designed in the United States and manufactured in China, following strict quality control standards.
Our verdict
For most homeowners, the Worx WG779E is the best overall petrol mower, offering a powerful engine, reliable self-propulsion, and excellent mulching. For those on a budget, the WG739E provides a solid, no-frills option for smaller lawns. Both models deliver strong performance and good value.