Best Lawn Mowers — Petrol (2026)

For smaller lawns (up to 500 sq ft), a 133cc or 140cc engine is usually sufficient. For larger areas (over 750 sq ft) consider 186cc or greater for improved cutting speed and power.

Almost all petrol lawn mowers use a two-stroke engine, requiring you to mix fresh oil with the petrol. The ratio is typically 50:1, meaning 50 parts petrol to 1 part oil. Using the correct mixture prevents damage to the engine.

The frequency depends on usage, but a general recommendation is every 25-50 hours of operation or annually. A blocked fuel filter can significantly reduce engine performance and potentially cause damage.

Most petrol mowers use steel blades, offering durability and sharpness for effective cutting. Blade quality varies; consider models with reinforced edges for longer lifespan and consistent performance.

Petrol lawn mowers typically have a lever or dial to adjust the cutting height, which controls the length of grass being cut. Start with a higher setting and gradually lower it until you achieve your desired lawn appearance.

Always wear eye protection and gloves when operating a petrol mower. Keep children and pets away from the mowing area, and never operate the mower over uneven ground or obstacles.

Regular cleaning is crucial to prevent corrosion and ensure optimal performance. Wipe down the engine casing with a damp cloth and remove grass clippings from the deck after each use.

Drain all fuel from the tank before storing, and consider adding a fuel stabilizer. Store the mower in a dry, sheltered location away from frost and extreme temperatures.

Regularly check and tighten spark plugs, lubricate moving parts with appropriate oil, and inspect the blades for damage or wear. A well-maintained mower will last longer and deliver better performance.

Fuel consumption varies depending on engine size and usage patterns, but expect to use around 2-4 litres per hour for larger lawns. Regularly check the oil level to ensure optimal combustion and reduce fuel waste.