How it is calculated
Read the oil label. Oil is not poured into the petrol of a four-stroke engine.
mL = liters × 1000 / ratio
Where the numbers come from
- Gasoline — unit in the field: L
- Ratio of 1 to
Example
5 liters at 1:50 need 100 mL of oil.
Questions
How do I enter 1:40?
Type 40 in the ratio field.
Oil in liters?
The answer is in milliliters. 1000 mL = 1 L.
Gasoline that is already mixed?
The calculator counts straight petrol. You cannot top up a mix that is already made with that figure, without a fresh calculation.