Back to the Top 10 Ways to Do Your Share for Cleaner Air 1. Limit your driving. Try not to drive at all, especially before 10 a.m. Consider walking or riding your bike when making short trips. Carpool or ride the bus to work reduced transit fares exit. Minimize cold starts by combining trips.
Most vehicle emissions occur when an automobile s engine is cold.
Avoid jackrabbit acceleration. Fast starts use more gasoline than slow ones. Avoid excessive idling. Drive during off-peak hours to avoid traffic. Avoid highway construction and drive-through windows.