Mazda 6 Service Manual: No.4 hard to start/long crank/erratic start/erratic crank

No.3 will not crank

No.5 engine stalls-after start/at idle

Other materials:

Mazda 6 Service Manual: Heated Steering Wheel (Some models)
The grips on the left and right of the steering wheel can be warmed up. The ignition must be switched ON. Press the switch to turn on the heated steering wheel. The heated steering wheel operates for about 30 minutes and then turns off automatically. The indicator light illuminates when the h ...

Mazda 6 Service Manual: Recommendations for Shifting
Upshifting For normal acceleration, Mazda recommends these shift points: For cruising, Mazda recommends these shift points: Downshifting When you must slow down in heavy traffic or on a steep upgrade, downshift before the engine starts to overwork. This reduces the chance of stalling and ...