Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2011 Mazda RX8 2RTR-1.3LFACTORY OEM SERVICE PROCEDURE
Spark Plug: Specifications
Gap
Standard spark plug gap 1.15-1.25 mm {0.046-0.049 in}
Maximum spark plug gap
Leading side 1.5 mm {0.059 in}
Trailing side 1.4 mm {0.055 in}
Torque
Tightening torque 12.8-17.7 Nm {131-180 kgf-cm, 114-156 in-lbf}
Standard spark plug gap 1.15-1.25 mm {0.046-0.049 in}
Maximum spark plug gap
Leading side 1.5 mm {0.059 in}
Trailing side 1.4 mm {0.055 in}
Torque
Tightening torque 12.8-17.7 Nm {131-180 kgf-cm, 114-156 in-lbf}
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.