# Diff and transmission oil **URL:** \ **Category:** SON240sx Automotive\ **Created:** [May 22, 2011, 6:52am UTC](https://forums.speedlife.net/t/diff-and-transmission-oil/212670 "2011-05-22T06:52:12Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![MoNtAjNiK](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@MoNtAjNiK](https://forums.speedlife.net/u/MoNtAjNiK)\ **Post date:** [May 22, 2011, 6:52am UTC](https://forums.speedlife.net/t/diff-and-transmission-oil/212670/1 "2011-05-22T06:52:12Z")
Decided to change tranny and diff fluids. Which transmission and differential oil would you guys recommend and to what level to top it up? If you also give me tip where to buy it that be great! ---
**Author:** ![spd-dmn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spd-dmn/32/5513_2.png) [@spd-dmn](https://forums.speedlife.net/u/spd-dmn)\ **Post date:** [May 22, 2011, 7:01am UTC](https://forums.speedlife.net/t/diff-and-transmission-oil/212670/2 "2011-05-22T07:01:59Z")
RedLine MT90 for tranny RedLine 75W90 for diff call PUR Auto, they have both 416 787 2886 ---
**Author:** ![derass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/derass/32/5691_2.png) [@derass](https://forums.speedlife.net/u/derass)\ **Post date:** [May 22, 2011, 11:58am UTC](https://forums.speedlife.net/t/diff-and-transmission-oil/212670/3 "2011-05-22T11:58:36Z")
[http://www.nicoclub.com/FSM/240sx/91-94/MA.pdf](http://www.nicoclub.com/FSM/240sx/91-94/MA.pdf) page 7, FSM specifies GL-4 75w90 for trans (ka24de) and GL-5 80w90 for diff…i use amsoil severe gear 75w90 as it claims to outperfrom the oem 80/90 ---
**Author:** ![MoNtAjNiK](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@MoNtAjNiK](https://forums.speedlife.net/u/MoNtAjNiK)\ **Post date:** [May 22, 2011, 12:15pm UTC](https://forums.speedlife.net/t/diff-and-transmission-oil/212670/4 "2011-05-22T12:15:46Z")
Thx guys, and what’s the top up level - until it reache the plug or lower? How many liters do I need?