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![whitegirl44](themes/aaAle/images/interface/profile-pic-placeholder.47cf740a.png)
Hi can you you please tell me if the recommended oil to use on a mazda atenza 2005 is 5w30 mineral oil and the garage has been putting 10w40sncf instead can this damage the motor. Thanks
![Anon](/assets/aa/aa-avatar.png?m=1466990309)
Hi there,
There are no oil specs for imports but for NZ new Mazda 3, Castrol recommend 5w30 or 10w30. Thicker oil would not generally be recommended in a newer engine if not designed for it, but may not necessarily cause any issue as a vehicle gets older.