Title: Determine fuel type, grade, and quality.
Course: Small Engine Technology I (20110-I) > Section: Diagnosing and Servicing the Fuel System

Determination is made by checking indicators, such as

- color of exhaust
- odor of fuel
- engine temperature
- power produced
- alcohol content.

Process/Skill Questions:

- Why does fuel quality matter to the efficiency of an engine?
- What does octane rating mean?
- Why should fuel cans be kept clean?
- How does one verify the alcohol content of fuel?
- What are the different grades of gasoline?