# Differential Leak

**URL:** <https://forums.speedlife.net/t/differential-leak/214043>\
**Category:** SON240sx Automotive\
**Created:** [June 29, 2011, 6:36pm UTC](https://forums.speedlife.net/t/differential-leak/214043 "2011-06-29T18:36:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Benjai](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/benjai/32/6122_2.png) [@Benjai](https://forums.speedlife.net/u/Benjai)\
**Post date:** [June 29, 2011, 6:36pm UTC](https://forums.speedlife.net/t/differential-leak/214043/1 "2011-06-29T18:36:17Z")

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So, I’ve got an s13 with a mystery 2 way diff. It leaks. As far as I can tell it’s only leaking from the vent cap but it seems to be a substantial leak, not a seep. (beads and drips on cooling fins)

Question is could it just be excess that is being blown out? Or do I need to reseal the vent cap?

The leak becomes more noticeable the harder I drive it and the fluid was filled up, level with the fill hole, around 1000km ago.

Only reason I’m asking is because this is my first 2 way and I have no idea whats normal for them.