# Added Brake Fluid to Power Steering Reservoir

**URL:** <https://community.cartalk.com/t/added-brake-fluid-to-power-steering-reservoir/90037>\
**Category:** Maintenance/Repairs\
**Tags:** ford\
**Created:** [May 21, 2015, 2:00am UTC](https://community.cartalk.com/t/added-brake-fluid-to-power-steering-reservoir/90037 "2015-05-21T02:00:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![KM53207](https://avatars.discourse-cdn.com/v4/letter/k/ea5d25/32.png) [@KM53207](https://community.cartalk.com/u/KM53207)\
**Post date:** [May 21, 2015, 2:00am UTC](https://community.cartalk.com/t/added-brake-fluid-to-power-steering-reservoir/90037/1 "2015-05-21T02:00:03Z")

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I accidentally added about 2 oz.'s of brake fluid to the power steering reservoir in my car. My mechanic said it would not hurt it, is he right?

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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 21, 2015, 2:11am UTC](https://community.cartalk.com/t/added-brake-fluid-to-power-steering-reservoir/90037/2 "2015-05-21T02:11:45Z")

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It probably won’t but I’m not a gambler either. Sounds like a good time to drain and replace the power steering fluid.

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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 21, 2015, 2:16am UTC](https://community.cartalk.com/t/added-brake-fluid-to-power-steering-reservoir/90037/3 "2015-05-21T02:16:12Z")

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Not true!

Brake fluid is a glycol-ether based fluid.

Where with power steering fluid it’s a mineral oil based fluid.

So the seals in the power steering system might not tolerate the brake fluid.

Get the power steering system flushed before possible damage occurs.

Tester