Honda Civic Owners Manual: Before Driving

Driving

...

Driving Preparation

Check the following items before you start driving. ...

See also:

Honda Civic Owners Manual. Fuel Information
Fuel recommendation Unleaded gasoline, pump octane number 87 or higher Use of a lower octane gasoline can cause a persistent, heavy metallic knocking noise that can lead to engine damage. Top tier detergent gasoline Because the level of detergency and additives in gasoline vary in the market, ...