Question about 2004 Mazda RX-8

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Exhaust glows red hot

Exhaust red hot near cat

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Mazda rx 8 creates a lot of heat, to fix this you must change out the coolant every 20k miles, with the mazda brand coolant i think its called mazda f22 coolant, the engine stays hot due to the high RPM engine, you may want to check: ignition coils, cat, coolant, and do a compression test.

Posted on Aug 28, 2014

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Posted on Jan 02, 2017

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SOURCE: RX8 Melting Cat , Missfire

My car is currently at the dealership with the same issue I think it is the front oxygen sensor not working which caused a lot of heat and the car would not drive more then 2 miles without over heating. I am awaiting diagnostics from Mazda but may get a cat replacement pipe installed with a new sensor.

Posted on Mar 24, 2011

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