Two-Stroke Oil Mix Calculator
Calculate the perfect fuel-to-oil mix ratio for your equipment
Common Mix Ratios Guide
50:1
Most modern equipment
- Chainsaws
- String trimmers
- Leaf blowers
- Modern dirt bikes
40:1
High-performance engines
- Some dirt bikes
- Racing equipment
- High-performance tools
32:1
Vintage equipment
- Older chainsaws
- Classic motorcycles
- Vintage tools
25:1
Very old engines
- Antique outboards
- Very old motorcycles
- Classic equipment
⚠️ Important Note
Always check your equipment's owner manual for the manufacturer's recommended mix ratio. Using the wrong ratio can damage your engine or reduce performance. When in doubt, a slightly richer mix (more oil) is safer than too little oil.




