# best oil? filter? tranny fluid?

**URL:** <https://forums.speedlife.net/t/best-oil-filter-tranny-fluid/107205>\
**Category:** SON240sx Automotive\
**Created:** [June 27, 2007, 9:03pm UTC](https://forums.speedlife.net/t/best-oil-filter-tranny-fluid/107205 "2007-06-27T21:03:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)\
**Post date:** [June 27, 2007, 9:03pm UTC](https://forums.speedlife.net/t/best-oil-filter-tranny-fluid/107205/1 "2007-06-27T21:03:03Z")

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yeah just wondering what you prefer, what fluids? for the ka? im on castrol GTX 5 w 30 and quaker state filter, and no name 80/90 (i think?) gear oil. what do you guys find works the best?

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**Author:** ![Terrible\_1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/terrible_1/32/5562_2.png) [@Terrible\_1](https://forums.speedlife.net/u/Terrible_1)\
**Post date:** [June 28, 2007, 3:40am UTC](https://forums.speedlife.net/t/best-oil-filter-tranny-fluid/107205/2 "2007-06-28T03:40:53Z")

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i like royal purple personally and i run oem SR filter

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**Author:** ![Kick\_Ass\_Matt](https://avatars.discourse-cdn.com/v4/letter/k/ac8455/32.png) [@Kick\_Ass\_Matt](https://forums.speedlife.net/u/Kick_Ass_Matt)\
**Post date:** [June 28, 2007, 7:58am UTC](https://forums.speedlife.net/t/best-oil-filter-tranny-fluid/107205/3 "2007-06-28T07:58:33Z")

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> [@Home Depot Scam WARNING](https://forums.speedlife.net/t/home-depot-scam-warning/13063/10):
>
> yeah just wondering what you prefer, what fluids? for the ka? im on castrol GTX 5 w 30 and quaker state filter, and no name 80/90 (i think?) gear oil. what do you guys find works the best?

Mobil 1 works  
Any filter works, just change it often; well you should anyways.

Any gear lube is good, gear lube doesn’t break down like motor oil does because there’s no burning like combustion; unless there’s water introduced into the system.