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Mazda CX-5: Problem with diesel oil level

I have read that the Mazda CX5 diesel has a problem with the oil level and diesel seeping into the sump and thus maybe causing damage to the engine. Has this been solved as I am looking at buying the diesel model?

Mazda has assured us that the changes, most notably the revised calibration of the fuel injection into the DPF as part of the purging process of the filter, that have been implemented on problem cars in the field and in production have fixed the problem.

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