# Oil burning engine's effect on Catalytic Converter?

**URL:** <https://community.cartalk.com/t/oil-burning-engines-effect-on-catalytic-converter/79094>\
**Category:** Maintenance/Repairs\
**Tags:** mini, cooper\
**Created:** [May 4, 2013, 12:28am UTC](https://community.cartalk.com/t/oil-burning-engines-effect-on-catalytic-converter/79094 "2013-05-04T00:28:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Randolph](https://avatars.discourse-cdn.com/v4/letter/r/e5b9ba/32.png) [@Randolph](https://community.cartalk.com/u/Randolph)\
**Post date:** [May 4, 2013, 12:28am UTC](https://community.cartalk.com/t/oil-burning-engines-effect-on-catalytic-converter/79094/1 "2013-05-04T00:28:31Z")

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Minis are renowned for oil burning. They’re replacing engine due to excessive oil burning. Are O2 sensors and Catalytic converters also effected, and should they replace them as well?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [May 4, 2013, 2:14am UTC](https://community.cartalk.com/t/oil-burning-engines-effect-on-catalytic-converter/79094/2 "2013-05-04T02:14:32Z")

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Oil burning can effect catalytic converters and O2 sensors. But I would wait until the engine is installed and the vehicle is on the road to see if the Check Engine light comes with codes that point to a problem with those systems.

Tester

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [May 4, 2013, 2:45am UTC](https://community.cartalk.com/t/oil-burning-engines-effect-on-catalytic-converter/79094/3 "2013-05-04T02:45:41Z")

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Agree with @Tester. If it ain’t broke…don’t fix it.