# Did an oil analysis on my Mazda

**URL:** <https://community.cartalk.com/t/did-an-oil-analysis-on-my-mazda/194307>\
**Category:** Maintenance/Repairs\
**Tags:** mazda5, mazda\
**Created:** [February 2, 2024, 11:42pm UTC](https://community.cartalk.com/t/did-an-oil-analysis-on-my-mazda/194307 "2024-02-02T23:42:04Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![sciconf](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@sciconf](https://community.cartalk.com/u/sciconf)\
**Post date:** [February 2, 2024, 11:42pm UTC](https://community.cartalk.com/t/did-an-oil-analysis-on-my-mazda/194307/1 "2024-02-02T23:42:04Z")

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I did the Blackstone oil test after 5k and 18months or so - just the iron is a bit high - perhaps city driving. Viscosity is in the range. Oil was dark but they say color of oil is not an indicator.

I noticed significant engine braking on a freeway so I rushed and did the oil change. I do not know if it has anything to do with engine oil. Should I change at 1yr mark? Scotty tells that 5k or seals gets damaged.

Here is the results.

 ![OilResults](https://global.discourse-cdn.com/cartalk/original/3X/3/9/39643821ad1d9ee637c5abafb3c15c0f1b098bf7.jpeg)

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