Using the right 2-stroke oil mix ratio is crucial to keep your garden machinery running smoothly, prevent engine damage, and extend the life of your tools. Whether you're using a chainsaw, strimmer, hedge trimmer, or leaf blower, this quick guide will show you how to get it right every time.
Why Mixing 2-Stroke Oil Matters
2-stroke engines don’t have an internal oil reservoir. Instead, oil is mixed with petrol to lubricate internal components. If the ratio is off:
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Too much oil = excessive smoke, carbon buildup, clogged spark plugs
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Too little oil = increased wear, overheating, engine failure
The Golden Rule: Know Your Ratio
The most common 2-stroke oil ratios are:
| Ratio | Suitable For |
|---|---|
| 50:1 | Modern machines (most Rotatech-compatible) |
| 40:1 | Older engines or specific manufacturer specs |
| 25:1 | Very old tools or high-performance 2-strokes |
Tip: Always check your owner's manual for the correct mix.
How to Mix 2-Stroke Oil Step-by-Step
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Choose the right oil. Use high-quality Rotatech 2-Stroke Oil for optimum protection.
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Use a clean fuel container, preferably marked with measurements.
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Add the petrol first, then the correct amount of oil.
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Mix thoroughly. Shake the container gently before pouring into your machine.
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Label the container. Avoid using old mixes as they degrade over time.
2-Stroke Oil Mix Ratio Chart
To make things easy, we've created a handy mixing chart showing how much oil to add for common ratios and fuel volumes:
| Petrol (Litres) | 50:1 Mix (ml) | 40:1 Mix (ml) | 25:1 Mix (ml) |
|---|---|---|---|
| 1 L | 20 ml | 25 ml | 40 ml |
| 2 L | 40 ml | 50 ml | 80 ml |
| 5 L | 100 ml | 125 ml | 200 ml |
| 10 L | 200 ml | 250 ml | 400 ml |
Rotatech 2-Stroke Oil, Built for Performance
Our 2-stroke chainsaw engine oil is engineered for high performance, offering:
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Superior lubrication
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Reduced smoke and carbon
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Cleaner burns for longer engine life
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Ideal for 2-stroke engine chainsaws with crankcase compression
Shop Rotatech 2-Stroke Oil here
Final Tips
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Always mix in a well ventilated area
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Avoid storing mixed fuel for more than 30 days
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Clean your fuel can and filters regularly
Mix smart, cut clean, and keep your tools running like new.
Got questions? Contact our team or check out our full range of Rotatech oils and accessories.