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Gas and Oil Mix Calculator

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About This MicroSim

This MicroSim helps learners calculate how much two-cycle oil to add for a given amount of gas and a chosen gas-to-oil ratio. It provides instant feedback in fluid ounces, milliliters, and tablespoons so measurements are easy in the shop or garage.

How to Use

  1. Set the Gas (gal) slider to match the amount of gas in your container.
  2. Set the Ratio (gas:oil) slider to match the engine requirement (default is 50:1).
  3. Read the Oil needed values in the display panel and measure that amount of oil.

Iframe Embed Code

<iframe src="main.html"
        height="512px"
        width="100%"
        scrolling="no"></iframe>

Lesson Plan

Grade Level

9-12 (High School) and adult learners

Duration

10-15 minutes

Prerequisites

  • Understand simple ratios (for example, 50:1)
  • Familiarity with measuring fluids in ounces or milliliters

Activities

  1. Exploration (5 min): Adjust the gas amount from 0.25 to 5 gallons and observe how oil needs change.
  2. Guided Practice (5 min): Set ratio to 50:1 and calculate oil for 1.25 gallons (a common gas can size).
  3. Assessment (5 min): Change the ratio to 40:1 and compute the oil needed for 2.5 gallons.

Assessment

Students can correctly compute oil amounts for three different gas volumes and ratios.

References

  1. Snowblower owner manual (fuel ratio specification)
  2. Two-cycle oil bottle label (mixing instructions)