In that case, the likelihood is that the DPF has filled up with ash from burning off all the soot it has been burning for 99,000 miles. Two options. One is to have the DPF sent away to be chemically ...

The Mazda 6 diesel engine, from its first incarnation to the current model, has a new form of diesel engine with a diesel particulate filter. According to Mazda this can cause a warning light to come ...

There have been reports of problems with the CX-5 and some other Mazda models of fuel contaminating the engine oil through the DPF filter. Mazda claim to have a fix for that problem. I would check ...