Best Four-Stroke Engine Oil of 2025

Briggs & Stratton Engine Oil is a high-quality mineral SAE30 4-stroke oil designed for your outdoor power equipment. It ensures optimal lubrication for all 4-stroke lawn mower engines, helping them run smoothly and efficiently. This oil is suitable for air-cooled engines operating in outdoor temperatures between 4°C and 38°C, providing versatility for various conditions. Available in multiple bottle sizes, you can easily match the oil capacity of your engine, making it convenient for your maintenance needs.

VOYTO SAE 30 Engine Oil is designed for 4-stroke engine lawnmowers, ensuring exceptional lubrication and protection. Its API SG/CD certification guarantees high performance, giving you peace of mind. By minimising friction, this oil helps extend the life of your lawnmower, preserving its value over time. Plus, its advanced formula optimises performance, keeping your engine running smoothly and efficiently. This oil is a versatile solution, compatible with a range of brands, making it an ideal choice for all your gardening equipment.

LIQUI MOLY Lawnmower Oil is specially designed for four-stroke lawnmower engines. It is essential to follow the operating materials instructions from your engine manufacturer to ensure optimal performance. This oil meets the SAE class 30 specification, which is crucial for engines requiring single-application engine oil. By using this oil, you can help maintain your mower's efficiency and longevity, ensuring it runs smoothly throughout the mowing season.

The ALM OL204 Oil is a high-quality 4 stroke engine oil designed to enhance the performance of your engines. Blended from premium mineral oil additives, it ensures thermal stability, which helps prevent overheating during use. You will also benefit from its anti-wear properties, extending the life of your engine. Additionally, it promotes engine cleanliness, reducing the buildup of harmful deposits over time. Finally, its corrosion protection feature safeguards your engine components, offering you peace of mind as you maintain your lawnmower or other mobile petrol and diesel engines.

The Smith & Allan Lawnmower Oil is designed for four-stroke engines, providing excellent protection and performance. Its API SF/CC rating ensures effective control of soot, sludge, and varnish, helping to keep your engine clean and efficient. You will also benefit from its robust protection against rust and corrosion, which prolongs the life of your lawnmower. Additionally, the oil's thermal stability allows it to perform well under high temperatures, ensuring your engine runs smoothly even in demanding conditions.

Castrol Outboard 4T is specially formulated for all four-stroke outboard engines from leading Japanese and American brands. It meets the API SL/CF specifications, ensuring reliable performance and protection. The product comes in a convenient plastic bottle, making it easy for you to handle and store. With its part synthetic formulation, you can enjoy enhanced piston cleanliness and reduced oil consumption, allowing your engine to run more efficiently and with less frequent oil changes.

The Briggs & Stratton 4-Stroke Oil is a high-quality mineral SAE30 engine oil designed specifically for 4-stroke lawn mower engines. This oil ensures that your outdoor power equipment runs smoothly, providing excellent lubrication for petrol engines. It is suitable for use in air-cooled engines operating in outdoor temperatures between 4°C and 38°C, making it versatile for various weather conditions. Available in multiple bottle sizes, it allows you to choose the right amount for your engine’s oil capacity, ensuring convenience for all users.

The Westway Lawnmower Oil is a high-quality, mineral-based oil designed for four-stroke engines. It significantly reduces engine component wear, ensuring your lawnmower runs smoothly for longer periods. This oil also helps keep your engine clean by preventing sludge and carbon build-up, which can lead to performance issues. Furthermore, it meets the API: SJ specifications, giving you peace of mind regarding its quality and performance. With this oil, you can maintain your lawnmower with ease and efficiency.

Mountfield 4-Stroke Oil is a high-grade lubricant specifically designed for 4-stroke engines. By using this oil, you ensure that your engine's moving parts are well protected, which can significantly extend its lifespan. The high-quality formulation provides excellent lubrication, reducing friction and wear during operation. This means you can enjoy smoother performance and less maintenance over time. With Mountfield's expertise, you can trust that this oil will keep your engine running efficiently.

The RocwooD Engine Oil SAE 30 is designed specifically for four-stroke engines, making it ideal for your lawnmower and horticultural equipment. With a convenient 1-litre bottle, it provides just the right amount of oil for your maintenance needs. This high-quality oil ensures optimal engine performance, helping to prolong the life of your machinery. By using this engine oil, you can keep your equipment running smoothly and efficiently, reducing the risk of breakdowns and ensuring a tidy garden.