Mazda 6 Service Manual: No.9 abnormal shifting

No.8 does not shift to fourth gear (4gr)

No.10 frequent shifting

Other materials:

Mazda 6 Service Manual: Fuel-Filler Cap
To remove the fuel-filler cap, turn it counterclockwise. Attach the removed cap to the inner side of the fuel lid. To close the fuel-filler cap, turn it clockwise until a click is heard. CAUTION (U.S.A. and Canada) If the check fuel cap warning light illuminates, the fuel-filler cap may not ...

Mazda 6 Service Manual: Replacing a Tire
WARNING Always use tires that are in good condition: Driving with worn tires is dangerous. Reduced braking, steering, and traction could result in an accident. Replace all four tires at the same time: Replacing just one tire is dangerous. It could cause poor handling and poor braking resulting ...