Question 5688
Using gasoline with a lower octane rating than recommended in order to save...
- is a mistaken way to save money.
- is recommended when driving in the city.
- is a highly recommended measure.
Show answer and explanation
Correct answer: is a mistaken way to save money.
It is a false economy. With gasoline below the recommended octane rating, the engine experiences abnormal combustion and runs poorly, even in city driving. Always use the gasoline specified by the manufacturer.