Oil Mix Calculator
The LRFIX 2-Cycle Oil Mix Calculator finds the correct oil-to-gas ratio for 2-cycle engines, showing how much oil to add to fuel.
2-cycle Oil Mix Calculator
Oil Mix Chart
| Mix Ratio | Gas Volume | 2-Cycle Oil |
|---|---|---|
| Imperial Fluid Ounces (US) | ||
| 32 To 1 | 1 gal. | 4 oz. |
| 40 To 1 | 1 gal. | 3.2 oz. |
| 50 To 1 | 1 gal. | 2.6 oz. |
| Metric Fluid Milliliters (Canada) | ||
| 32 To 1 | 1 liter | 31.25 ml |
| 40 To 1 | 1 liter | 25 ml |
| 50 To 1 | 1 liter | 20 ml |
FAQ
A 40 to 1 fuel mixture contains more oil than a 50 to 1 fuel mixture.
Yes, both terms refer to the number of piston strokes per complete combustion cycle, they mean the same thing.
A 2-cycle engine, also known as a two-stroke engine, completes a power cycle in two strokes of the piston (one up and one down).
Common mix ratios include 50:1, 40:1, and 32:1, depending on the engine specifications.
Yes, you can typically use synthetic oil when mixing 2-stroke fuel, but always check the machine's manufacturer for specific recommendations.
The shelf life varies based on factors like the type of oil used, storage conditions, and whether stabilizers are added.
Check the manufacturer’s recommended oil-to-fuel ratio. Use a measuring container to mix the correct amount of oil with gasoline in a clean, approved container. Secure the lid, shake well, and then pour into your 2-stroke engine’s fuel tank.
