1. If not as specified, loosen the fuel-filler lid installation bolts, and reposition the fuel-filler lid.
2. Measure the gap and height between the fuel-filler lid and the body.
Clearance
a: 1.7-3.7 mm {0.067-0.145 in} b: -0.5-1.5 mm {-0.019-0.059 in}
3. Tighten the bolts.

Fuel-filler lid and opener removal/installation
BumperMazda 6 Service Manual: Scheduled Maintenance (Mexico)
Follow Schedule 1 if the vehicle is operated mainly where none of the following
conditions apply.
Repeated short-distance driving
Driving in dusty conditions
Driving with extended use of brakes
Driving in areas where salt or other corrosive materials are used
Driving on rough or muddy ...
Mazda 6 Service Manual: Removing a Flat Tire
1. Loosen the lug nuts by turning them counterclockwise one turn each, but do
not remove any lug nuts until the tire has been raised off the ground.
2. Place the jack on the ground.
3. Turn the jack screw in the direction shown in the figure and adjust the jack
head so that it is close to th ...