The Best Petrol Lawn Mowers For Gardens of Every Size

Upgrade your mowing with our handpicked selection of petrol lawn mowers that cater for all budgets and requirements.
Tried & Tested: See Our Testing ↓
Written & Tested By: Archie Rich | Updated:
Best Petrol Lawn Mower
Archie Rich/DIY Works
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A petrol lawn mower is the best option for tackling medium to large gardens as it gives you more power and freedom. When compared to the electric alternatives, they don’t have the drawback of requiring a power supply, which isn’t always possible, and it’s the main reason why most people choose to use a petrol-powered lawn mower.

To assist you in selecting a petrol lawn mower, our handpicked selection lists top-performing models, chosen based on our first-hand experience using multiple mowers to cut various-sized lawns. Our testing and up-to-date research further ensure the quality of our recommendations.

Hyundai HYM510SPE Petrol Lawn Mower
Best For Large Gardens: Hyundai HYM510SPE Lawn Mower
Mountfield HP41 Petrol Lawn Mower
Best Budget: Mountfield HP41 Petrol Lawn Mower
Murray EQ2-500 Self-Propelled
Best All-Rounder: Murray EQ2-500 Self-Propelled
Cobra RM46SPB Petrol Lawn Mower
Best With Roller: Cobra 500 Series Petrol Lawn Mower
Hyundai HYM400P Petrol Lawn Mower
Best For Small Gardens: Hyundai HYM400P Petrol Lawn Mower
NAX 1000S Petrol Mower
Best With Front Swivel Wheels: NAX 1000S Petrol Mower

How The DIY Works Team Tests & Rates Petrol Lawn Mowers

Over the years, we’ve tried and tested several petrol lawn mowers in a range of garden sizes. Due to the fact that we have a relatively large garden in our personal home, we prefer using petrol lawn mowers as opposed to electric or battery-powered alternatives. This is primarily due to the extra power and freedom to roam anywhere. However, for other properties that we manage with smaller gardens (rentals & Airbnb’s), the petrol lawn mower is still more than usable and it’s the most versatile type of mower and in some cases, it’s often cheaper too.

Best Petrol Lawn Mower UK

Archie Rich/DIY Works
best petrol lawn mower with roller

Archie Rich/DIY Works

During our testing, we analyse the lawn mower’s performance, height adjustments, ease of starting, build quality, self-propelling capabilities and ease of assembly.

best petrol lawn mowers

Archie Rich/DIY Works
best petrol lawnmower

Archie Rich/DIY Works

To keep up our commitment to reviewing and testing the latest petrol lawn mowers (for this article), we are continually testing the latest machines from top brands in the UK. This means that when we notice a brand has released a new and improved model, we will attempt to buy it and put it to the test where applicable.

As well as our testing and experience using multiple petrol lawn mowers, we also based our recommendations on the latest research and several factors. Some of the factors that we took into consideration included the mower’s type, cutting width and height options, grass collection, engine performance, additional accessories, warranty and value.

The Best Petrol Lawn Mowers

At DIY Works, our content is 100% independent and we would never recommend a product that we wouldn't use ourselves (read our editorial standards and how we test products).

1. Best For Large Gardens: Hyundai HYM510SPE Lawn Mower

(How We Review →)

This self-propelled petrol lawn mower by Hyundai follows their excellent reputation for reliability and build quality. It’s known as the HYM510SPE model and it’s powered by a 4-stroke 173 cc engine, which returns excellent fuel economy.

In terms of its self-propelled capabilities, it has four different speeds where the power is sent directly to the rear wheels. The powerful 173cc engine and 51 cm cutting width also make it perfect for medium to large gardens.

Pros
  • Easy push button to start
  • 6 cutting heights ranging from 25 to 75 mm
  • Side discharge chute
  • During testing, we found it very easy to assemble out of the box (doesn't require any tools)
  • 70 litre grass collector
  • Backed by a 3 year warranty
  • Clever grass level indicators for improved usability
Cons
  • Relatively expensive when compared to the alternatives

Although the HYM510SPE model by Hyundai comes with a premium price tag, during our testing, we were really impressed with how it performed when mowing both medium and large gardens. However, it’s worth noting that this is the brand’s flagship mower and there are cheaper alternatives with similar features.

2. Best Budget: Mountfield HP41 Petrol Lawn Mower

(How We Review →)

If you are looking for a more affordable petrol lawn mower, the Mountfield brand has the answer with its HP41 model. With a cutting width of 39cm and a lightweight frame, it’s the perfect solution for small to medium-sized lawns.

In terms of its availability, the brand also offers a larger engine with the choice of a 100cc or 125cc displacement. However, if you are on a tight budget and have a small to medium-sized garden, this HP41 is more than ideal.

Pros
  • 5 height position that range from 25 to 70 mm
  • Corrosion free polypropylene cutter deck
  • 40 litre grass collector
  • During testing, we found it to be very lightweight and easy to use
  • Build quality is great considering its budget price tag
Cons
  • Isn't a self-propelled lawn mower

If you are looking for a cheap petrol lawn mower, you can’t go wrong with the Mountfield HP41. It’s easy to use and assemble and it’s more than ideal for tackling small to medium-sized gardens. However, if you have a larger garden, the brand also offers models with larger engines and self-propelling functionality.

3. Best All-Rounder: Murray EQ2-500 Self-Propelled

(How We Review →)

The Murray brand offers a variety of petrol lawn mowers but their new and improved model known as the EQ2-500 is a great option to consider. This is because it’s a 4-in-1 mower that catches grass, mulches and has a side and rear discharge. It’s also powered by the reliable Briggs & Stratton engine that provides plenty of performance.

Pros
  • Self-propelled mower with a 46cm cutting width
  • Height is easily adjusted in 6 different positions
  • Desk is constructed of steel for improved durability
  • During testing, we were impressed by its mulching capabilities
  • Supplied with a 50 litre grass collection bag that features a grass level indicator and dust shield
  • Backed by a two year warranty
  • Powered by a high-performance Briggs & Stratton engine
Cons
  • Relatively expensive when compared to the alternatives

If you are looking for a petrol lawn mower that ticks all the boxes, you can’t go wrong with the Murray EQ2-500. It offers all the functionality you could ever need from a mower and during our testing, we were impressed by its build quality and the features it had to offer. The only slight drawback is that it does come with a premium price tag but we feel that it’s a worthwhile investment that certainly won’t disappoint.

4. Best With Roller: Cobra 500 Series Petrol Lawn Mower

(How We Review →)

If you want to achieve lovely stripes on your lawn, opting for a petrol lawn mower that features a roller is highly advised and a mower we recommend is the Cobra 500 Series. To achieve stripes, it has a full-width rear roller that flattens the grass in the direction of the mower’s travel and it assembles out of the box with ease.

Pros
  • During testing, we really liked the fact the roller was the full width of the lawnmower (unlike many of the alternatives)
  • Powered by the ultra-reliable Briggs & Stratton engine
  • Choice of 6 cutting heights and it even cuts to as low as 17mm
  • Supplied with a 55 litre fabric grass bag
  • Backed by a two year warranty
  • Built to a high quality when compared to other mowers at a similar price point
Cons
  • You pay a premium price tag for the inclusion of a roller

To conclude, the Cobra 500 Series is the best petrol lawn mower that achieves traditional stripes with ease thanks to its full-width roller. Although you pay a premium for this functionality, it really does make a big difference and it’s a must for those that love to see stripes on their lawn.

5. Best For Small Gardens: Hyundai HYM400P Petrol Lawn Mower

(How We Review →)

Another petrol lawn mower by Hyundai is the HYM400P model but unlike the HYM510SPE recommendation above, this is a budget-friendly petrol lawn mower that’s ideal for small to medium gardens. This is because it has a 40cm cutting width and a smaller overall construction when compared to other larger lawn mowers.

Pros
  • Choice of 6 adjustable cutting heights
  • Features a fuel efficient 79cc 4-stroke engine
  • Only weighs 19KG
  • Comes with oil for using the lawn mower straightaway
  • Easily folds away for storage
Cons
  • Not suitable for large gardens or thick/overgrown lawns

Although there are cheaper petrol lawn mowers on the market, none have the reputable brand backing of this mower. Considering all of its functionality, build quality and the fact that it comes with a 3 year warranty, it really can’t be beaten on price and it’s one of the best options on the market for small gardens.

6. Best With Front Swivel Wheels: NAX 1000S Petrol Mower

(How We Review →)

If your garden features lots of obstacles that you need to manoeuvre around, choosing a petrol lawn mower with swivelling front wheels is highly recommended. With wheels that easily rotate, pushing the mower around your lawn is made far easier and during testing, although it took a while to get used to, it certainly made a big difference.

Pros
  • Powered by a Briggs & Stratton engine
  • 4-in-1 mower that collects, mulches and discharges at the side or rear
  • Supplied with a 45 litre collection basket
  • Intuitive casing washing system
  • Choice of six cutting heights
  • Well-designed side combs that provides accurate cuts
Cons
  • The swivelling wheels take a while to get used to

For tackling obstacles on your lawn or simply being able to manoeuvre the mower more easily, the swivelling front wheels are a great invention. The NAX 1000S has incorporated this design into their mower brilliantly and if your budget allows, the brand offers more expensive options for tackling larger gardens too.

Petrol Lawn Mower Buying Guide

Petrol lawn mowers have been the go-to choice for many people for years. They allow you to roam freely without the worry of finding a power supply or finishing the job before the battery runs out.

If you have a medium to large garden with banks or slopes, investing in a petrol-powered mower is a great investment. The additional power allows you to achieve a far better cut with very little effort. They are also known for being far more durable than alternative-powered lawn mowers too.

To help you make an informed buying decision, we have produced the below guide regarding petrol lawn mowers.

Electric vs Petrol-powered

Choosing between an electric or petrol lawn mower is difficult as they each have benefits and drawbacks. The benefits of using a petrol powered mower include:

  • Free to roam without being tied to a power supply
  • No risk of cutting through a power cable
  • No need to constantly move the power cable out of the way
  • More readily available power
  • More durable

However, they do have drawbacks that include:

  • Much heavier
  • Usually more expensive
  • Harder to push without being self-propelled
  • Requires petrol to run and servicing
  • Much noisier

Another alternative that can also be considered is a cordless battery-powered mower. These remove the hassle of a power cable but instead have the drawback of having to remember to charge the battery. Nothing is worse than getting halfway through cutting the lawn and running out of battery.

For tackling medium to large gardens, the petrol lawn mower is by far the best option.

Push vs Self-Propelled Petrol Lawn Mower

Cutting your lawn can become fairly tiresome for those with medium to large gardens. Therefore, to help reduce fatigue, many manufacturers offer a self-propelled lawn mower, with some premium examples having multiple speeds to choose from.

Push mowers are the cheapest option and are ideal for flat gardens under half an acre. However, the ease of using a self-propelled lawn mower is highly desirable as they push themselves with power usually being sent to the rear wheels.

For tackling medium to large gardens, they are perfectly fine, but for multiple acres of grass, you would probably require a ride on lawn mower.

The Engine

Petrol-powered engines that are used in lawnmowers have improved massively over the years. Improvements include a reduction in fuel consumption, lower levels of noise and less emissions.

Older petrol lawn mowers were mostly 2-stroke engines, but due to emissions, they have been phased out. The majority of petrol lawn mowers use 4-stroke engines, which have the benefit of not having to mix oil and improved fuel economy.

Cutting Width and Height

Due to the extra power that comes with a petrol lawn mower, you can cut grass more easily using a wider pass. For large gardens, in particular, you will want to be as efficient as possible. Therefore, opting for the widest opening will help speed up the cutting task of mowing your lawn. However, if you have a relatively small garden with lots of curves, it would be advised to go for a smaller width.

Grass Collection

Although not essential, most lawn mowers will come with a grass collection container. This is either constructed of a lightweight mesh material or a plastic container. Depending on the size of your garden, you will want to choose the appropriate-sized grass collector.

If you prefer not to collect the cut grass, some lawn mowers have the functionality known as mulching. In short, the lawn mower cuts the grass even further into even smaller pieces, which are then outputted back onto the grass. This has the added benefit of keeping the grass green and healthy but also avoiding the task of emptying the grass collector.

Starting System

Some petrol engines have integrated an electric start button to get the engine up and running more easily. However, not every lawn mower will have this feature, and they may use a recoil start system, which may not be suitable for some people.

Maintenance Tips

One factor that some people worry about regarding petrol-powered mowers is the maintenance that comes with them. However, it really isn’t too bad, and it will only ever need servicing once every season, depending on its usage.

Below are serving tasks that you should carry out after every season:

  • Change oil
  • Replace the fuel filter
  • Replace the spark plug
  • Clean cooling system

Unlike a car engine, serving your lawn mower is far easier and can be completed within an hour. Before using the petrol lawn mower, you should always check the oil level beforehand. It will take less than 30 seconds to check, and it avoids any expensive damage. Briggs & Stratton has an excellent guide that goes through each step in detail.

Conclusion

Petrol lawn mowers are highly desirable for many due to their powerful engines and durability. However, the main benefit is the fact that you can roam freely without having to worry about battery charge or a power supply.

All of the recommendations within our roundup cover a range of mowers that are suitable for all budgets. However, before purchasing, we strongly recommend that you ensure the lawn mower you choose meets your requirements.

If you require further information regarding our petrol lawn mower recommendations, feel free to get in touch and we will try to provide our assistance where possible.

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