Ryobi Petrol Lawn Mower Review
Ryobi's petrol lawn mowers aim to bridge the gap between budget-friendly electric models and premium commercial machines. This review examines the current Ryobi petrol lineup, focusing on build quality, cutting performance, and real-world reliability based on aggregated owner feedback.
Quick answer
The Ryobi RLM4619E is the top pick for most homeowners needing a reliable self-propelled petrol mower. It offers a robust 190cc engine, a 46cm cutting deck, and excellent mulching capability. For smaller lawns, the budget-friendly Ryobi RLM36X5S is a solid alternative.
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Research updated June 2026.
Ryobi RLM4619E
Best balance of power, deck size, and self-propelled ease.
| Model | Best For | Engine | Deck Width | Rating |
|---|---|---|---|---|
| RLM4619E | Overall best | 190cc | 46cm | 4.5/5 |
| RLM36X5S | Small lawns | 140cc | 36cm | 4.2/5 |
| RLM40B18 | Budget pick | 160cc | 40cm | 4.0/5 |
| RLM48B20 | Large lawns | 200cc | 48cm | 4.3/5 |
Ryobi RLM4619E
Best OverallPros
- Powerful 190cc engine handles thick grass
- Self-propelled drive reduces effort
- Large 60L collection bag
Cons
- Heavy at 32kg
- Plastic wheels feel less durable
The RLM4619E is Ryobi's most popular petrol mower, and for good reason. Its 190cc OHV engine delivers reliable torque for cutting through damp or overgrown grass without stalling. The 46cm steel deck is a practical size for medium to large lawns, and the self-propelled drive system makes maneuvering on slopes much easier.
Owner reviews consistently highlight the effective mulching capability and the large 60L collection bag that reduces emptying frequency. However, some users note that the plastic wheel hubs can crack under heavy use, and the mower is on the heavier side at 32kg. Overall, it offers strong value for its price point.
Ryobi RLM36X5S
Best for Small LawnsPros
- Light and easy to maneuver
- Compact size for tight spaces
- Good value for small lawns
Cons
- Small 40L collection bag
- Not self-propelled
The RLM36X5S is designed for smaller gardens where a larger mower would be overkill. Its 140cc engine is sufficient for regular weekly cuts on lawns up to 300 square meters. The 36cm deck allows it to navigate narrow paths and flower beds with ease.
Owner feedback praises its lightweight design (22kg) and simple operation, making it a good choice for those who prefer a manual push mower. The main drawbacks are the small 40L collection bag and the lack of self-propulsion, which can be tiring on larger or sloping lawns.
Ryobi RLM40B18
Best Budget PickPros
- Affordable price point
- Decent 160cc power
- Foldable handle for storage
Cons
- Basic build quality
- No self-propulsion
The RLM40B18 is Ryobi's entry-level petrol mower, aimed at budget-conscious buyers who still want a petrol engine. The 160cc engine provides enough power for medium-sized lawns, and the 40cm deck is a good compromise between cutting width and maneuverability.
Owner reviews note that it starts reliably and cuts well for the price, but the build quality feels less robust than higher-end models. The lack of self-propulsion means you will need to push it manually, which can be a workout on uneven ground. It is a solid choice for those on a strict budget.
Ryobi RLM48B20
Best for Large LawnsPros
- Powerful 200cc engine
- Wide 48cm cutting deck
- Large 65L collection bag
Cons
- Very heavy at 35kg
- Can struggle on very steep slopes
The RLM48B20 is Ryobi's largest petrol mower, designed for lawns over 500 square meters. The 200cc engine provides substantial power, and the 48cm deck allows you to cover more ground with each pass. The self-propelled drive is essential given the mower's 35kg weight.
Owner feedback highlights its fast cutting speed and the large 65L collection bag. However, the weight makes it difficult to maneuver in tight spaces, and some users report that the self-propelled drive can struggle on steep inclines. It is best suited for large, relatively flat lawns.
Who is a Ryobi Petrol Mower For?
Ryobi petrol mowers are aimed at homeowners who want the power and range of a petrol engine without the premium price tag of brands like Honda or Stihl. They are a good fit for medium to large lawns where an electric corded mower is impractical and a battery-powered mower may lack runtime. Ryobi's models offer a range of engine sizes and deck widths to suit different lawn sizes and budgets.
Performance and Cutting Quality
Based on aggregated owner reviews from major retailers, Ryobi petrol mowers generally deliver reliable cutting performance for regular lawn maintenance. The OHV engines are known for easy starting and consistent power delivery. The mulching capability on models like the RLM4619E is frequently praised, leaving a fine clippings distribution that feeds the lawn. The collection bags are large and easy to empty, though the plastic attachments can feel less durable than metal alternatives.
Build Quality and Durability
Ryobi mowers use steel cutting decks, which are durable and resistant to rust. However, some components, such as the wheel hubs and height adjustment levers, are made of plastic. Owner feedback indicates that these parts can be prone to cracking under heavy use or on uneven terrain. The engines are generally reliable, but some users report issues with the carburetor after several seasons of use. Regular maintenance, including oil changes and air filter cleaning, is essential for longevity.
Alternatives to Ryobi Petrol Mowers
For those considering other options, brands like Stihl and Honda offer higher-end petrol mowers with superior build quality and longer lifespans, but at a higher cost. Bosch and Flymo provide excellent electric alternatives, both corded and battery-powered, which are lighter and quieter. For budget-conscious buyers, Einhell offers a range of petrol mowers that compete directly with Ryobi on price and features.
What to Check Before Buying a Petrol Mower
Before purchasing, consider your lawn size and terrain. For lawns under 300 square meters, a smaller, lighter push mower may be sufficient. For larger or sloping lawns, a self-propelled model is recommended. Check the engine displacement (cc) for power, the deck width for cutting efficiency, and the collection bag capacity. Also, consider the availability of spare parts and local servicing options for the engine brand.
Mistakes to Avoid
A common mistake is buying a mower with too small a deck for a large lawn, leading to longer cutting times. Another is neglecting to check the weight of the mower, especially if you need to maneuver it on slopes or through gates. Finally, failing to perform regular maintenance, such as changing the oil and sharpening the blade, will significantly reduce the mower's lifespan and performance.
FAQs
Are Ryobi petrol mowers reliable?
Yes, they are generally reliable for home use, with OHV engines known for easy starting. However, some plastic components may wear faster than metal parts on premium brands.
What size lawn is a Ryobi petrol mower suitable for?
Ryobi offers models for small to large lawns, from 36cm decks for under 300 sqm to 48cm decks for over 500 sqm. Choose based on your lawn's size and complexity.
Do Ryobi petrol mowers have self-propulsion?
Some models, like the RLM4619E and RLM48B20, feature self-propelled drive. Entry-level models like the RLM36X5S and RLM40B18 are manual push mowers.
How do I maintain a Ryobi petrol mower?
Regular maintenance includes changing the engine oil annually, cleaning or replacing the air filter, and sharpening the blade each season. Store fuel stabilizer in the tank during winter.
Can I mulch with a Ryobi petrol mower?
Yes, most Ryobi petrol mowers come with a mulching plug or feature. The RLM4619E is particularly praised for its effective mulching performance.
Are spare parts readily available for Ryobi mowers?
Yes, Ryobi has a wide network of dealers and online retailers that stock common spare parts like blades, belts, and air filters.
How does Ryobi compare to Honda petrol mowers?
Honda mowers are generally more expensive but offer superior build quality, engine refinement, and longevity. Ryobi provides better value for budget-conscious buyers.
What is the warranty on a Ryobi petrol mower?
Ryobi typically offers a 2-year warranty on their petrol mowers for domestic use. Always check the specific warranty terms at the time of purchase.
Is a petrol mower better than a battery mower?
Petrol mowers offer unlimited runtime and more power for thick grass, but they are heavier, louder, and require more maintenance. Battery mowers are quieter and lighter but have limited runtime.
What fuel does a Ryobi petrol mower use?
Ryobi petrol mowers use standard unleaded petrol. It is recommended to use fuel with a maximum 10% ethanol content to avoid engine damage.
Our verdict
For most homeowners, the Ryobi RLM4619E is the best overall choice, offering a strong balance of power, deck size, and self-propelled convenience. For those on a tight budget or with a small lawn, the Ryobi RLM36X5S is a capable and affordable alternative.