Petrol Oil Ratio Calculator





Formula

To calculate the petrol oil ratio:

\[ R = \frac{P}{O} \]

Where:

What is a Petrol Oil Ratio?

A petrol oil ratio is the proportion of petrol to oil in a fuel mixture, typically used in two-stroke engines. This ratio is essential for the engine’s performance and longevity, as it ensures that the engine receives the right amount of lubrication. The correct petrol oil ratio can vary depending on the engine’s design and the manufacturer’s recommendations, but common ratios include 50:1, 40:1, and 32:1. Using the correct ratio helps prevent engine damage, reduces emissions, and improves overall efficiency.

Example Calculation

Let's assume the following values:

Step 1: Divide the amount of petrol by the amount of oil:

\[ R = \frac{5}{0.1} = 50 \]

The petrol oil ratio is 50:1.