Buying · Expert tip
Test a used car from a cold start
A cold start reveals problems a warm engine hides.
The expert tip
- Arrive early so the engine is cold
- Start it and listen for rattles and knocks
- Check for smoke from a cold start
- Let it reach temperature and watch the gauge
Source: Used-car inspectors
Apply tips that match your car and manual. For anything safety-critical or high-voltage, use a qualified mechanic.