L
Result
Oil to add100 ml
How it is calculated, with your numbers
- Oil to add
oil = fuel × 1000 / ratio5 × 1000 / 50 = 100 ml
Working uses the metric units the formula is written in.
- fuel Fuel (L)
- ratio Mix ratio (fuel : 1 oil)
- oil Oil to add
What it means
A ratio of 50:1 means one part oil for fifty parts fuel by volume. Divide the fuel volume by the ratio for the oil volume. Use the ratio in your engine or oil maker's instructions; adding "a bit extra" changes the mixture and can foul plugs.
Assumptions and limits
- Ratio of fuel to oil by volume, the usual convention.
Sources
- Ratio by volume as given by the engine or oil maker.