Mazda 6 Service Manual: No.13 knocking/pinging-acceleration/cruise

No.12 lack/loss of power-acceleration/cruise

No.14 poor fuel economy

Other materials:

Mazda 6 Service Manual: Operating Tips for WMA
WMA is short for Windows Media*1 Audio and is the audio compression format used by Microsoft*1. Audio data can be created and stored at a higher compression ratio than MP3. This unit plays files with the extension (.wma) as WMA files. *1 Windows Media and Microsoft are registered trademarks of ...

Mazda 6 Service Manual: Battery Recharging
NOTE Before performing maintenance or recharging the battery, turn off all accessories and stop the engine. To disconnect the battery, remove the negative cable first. Install it last when connecting the battery. Be sure to remove the caps before recharging the battery.   I ...