How to mix two-stroke oil and fuel for a hedge trimmer
Mixing fuel correctly is essential for your hedge trimmer’s performance and lifespan. Too little oil can damage the engine, while too much can cause smoke and poor performance.
Follow this simple guide to get the correct mix every time.
Quick answer
Recommended mix: 50:1 (2% oil)
That means:
- 5 litres petrol — 100 ml oil
- 1 litre petrol — 20 ml oil
This is the standard ratio for most Husqvarna hedge trimmers.
Use this ratio unless your manual says otherwise.
What you need
- Fresh petrol
- 2-stroke engine oil
- Clean fuel container
- Measuring jug or mixing bottle
Tip: always use a container designed for fuel to avoid contamination
Step-by-step: how to mix fuel correctly
Learn how to mix fuel correctly
Learn how to mix fuel correctly
Add half the petrol
Pour half the required petrol into your container.
Add the fuel amount of oil
Measure the correct amount of oil and add it to the fuel.
Mix thoroughly
Close the container and shake well to combine the mixture.
Add the remaining fuel
Pour the rest of the petrol and mix again.
This method ensures the oil blends evenly with the fuel.
Fill your hedge trimmer
Carefully pour the mixed fuel into the tank.
Fuel mix guide — quick reference
| Petrol | Oil (50:1) |
| 1 litre | 20 ml |
| 2 litres | 40 ml |
| 5 litres | 100 ml |
| 10 litres | 200 ml |
Save this chart for future use
Common mistakes to avoid
- Guessing the ratio instead of measuring
- Using old or stale fuel
- Mixing directly in the fuel tank
- Making too much fuel at once
Only mix what you can use within 30 days.
What happens if the mix is wrong?
- Too little oil: engine damage, overheating
- Too much oil: smoke, carbon buildup, reduced power
Correct mixing protects your engine and ensures smooth operation.
Storage tips
- Store fuel in a clean, sealed container
- Keep it in a cool, dark place
- Label the mix and date
Fuel degrades over time and can cause starting problems.