# HELP! Motor Oil in Trans Fluid

**URL:** <https://community.cartalk.com/t/help-motor-oil-in-trans-fluid/3357>\
**Category:** Maintenance/Repairs\
**Tags:** transmissions\
**Created:** [August 20, 2007, 1:12am UTC](https://community.cartalk.com/t/help-motor-oil-in-trans-fluid/3357 "2007-08-20T01:12:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Too\_Slick](https://avatars.discourse-cdn.com/v4/letter/t/bbe5ce/32.png) [@Too\_Slick](https://community.cartalk.com/u/Too_Slick)\
**Post date:** [August 20, 2007, 1:12am UTC](https://community.cartalk.com/t/help-motor-oil-in-trans-fluid/3357/1 "2007-08-20T01:12:01Z")

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OK I chose Too Slick for my screen name because I just poured at least 1/2 cup of 10W-40 into my transmission fluid. (Had both bottles out and… )  
  
 Can I drive 1 mile to my mechanic or do I need to have it towed? How bad is this?  
  
 Thanks.  
  
 Steve

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**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\
**Post date:** [August 20, 2007, 1:46am UTC](https://community.cartalk.com/t/help-motor-oil-in-trans-fluid/3357/2 "2007-08-20T01:46:00Z")

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Drive the mile to the shop and have the transmission fluid drained and refilled.

DON’T have the transmission flushed, just drained and refilled.

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**Author:** ![Too\_Slick](https://avatars.discourse-cdn.com/v4/letter/t/bbe5ce/32.png) [@Too\_Slick](https://community.cartalk.com/u/Too_Slick)\
**Post date:** [August 20, 2007, 2:18am UTC](https://community.cartalk.com/t/help-motor-oil-in-trans-fluid/3357/3 "2007-08-20T02:18:23Z")

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Thank you very much!!

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**Author:** ![pleasedodgevan](https://avatars.discourse-cdn.com/v4/letter/p/51bf81/32.png) [@pleasedodgevan](https://community.cartalk.com/u/pleasedodgevan)\
**Post date:** [August 20, 2007, 4:43am UTC](https://community.cartalk.com/t/help-motor-oil-in-trans-fluid/3357/4 "2007-08-20T04:43:36Z")

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I see that transman says that it won’t hurt anything.

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**Author:** ![transman618](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/transman618/32/24_2.png) [@transman618](https://community.cartalk.com/u/transman618)\
**Post date:** [August 21, 2007, 7:43am UTC](https://community.cartalk.com/t/help-motor-oil-in-trans-fluid/3357/5 "2007-08-21T07:43:00Z")

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It wont hurt a thing, leave it alone and save yourself the expense of draining it again.

transman