See also:

Oil specifications
Engine oil must meet the minimum ILSAC specification GF-4, API SL, or ACEA A1/B1. Lower quality oils may not offer the same fuel economy, engine performance, or engine protection. Depending on ...

CHECK ENGINE Malfunction indicatorlight
On-Board Diagnostics II (OBDII): As you drive, a computer called "OBDII" monitors your vehicle's engine, transmission, electrical and emission systems. The CHECK ENGINE light will light ...

Safety Features
The S80 excels at safety. Before the little bubble above your head fills with the word "Duh," let me add that this Volvo has some breakthrough safety gizmos we hadn't seen until very rec ...