# What tranny fluid do you guys use?

**URL:** <https://forums.speedlife.net/t/what-tranny-fluid-do-you-guys-use/41604>\
**Category:** NYSpeed Automotive\
**Created:** [January 10, 2008, 7:24pm UTC](https://forums.speedlife.net/t/what-tranny-fluid-do-you-guys-use/41604 "2008-01-10T19:24:21Z")\
**Posts on this page:** 1\
**Showing post:** 26

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**Author:** ![JustinH](https://avatars.discourse-cdn.com/v4/letter/j/9fc29f/32.png) [@JustinH](https://forums.speedlife.net/u/JustinH)\
**Post date:** [January 11, 2008, 4:55pm UTC](https://forums.speedlife.net/t/what-tranny-fluid-do-you-guys-use/41604/26 "2008-01-11T16:55:56Z")

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> [@nappy1380](#):
>
> What is the best type to use on a T45 transmission would be what i’m looking to find out.

Look in your manual man.

A T45 takes automatic trans fluid. I bet they put Mercon V in there from the factory.

I’m running Mobil1 ATF in my saturn manual trans, noticed a little better shifter feel when the car is ice cold and i’m shifting it first thing in the morning.

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