# GL4/GL5 blend. Good for tranny?

**URL:** <https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473>\
**Category:** SON240sx Automotive\
**Created:** [August 12, 2007, 8:06am UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473 "2007-08-12T08:06:27Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![weaves](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/weaves/32/5624_2.png) [@weaves](https://forums.speedlife.net/u/weaves)\
**Post date:** [August 12, 2007, 8:06am UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/1 "2007-08-12T08:06:27Z")

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Just bought some Royal purple 75w90 and its rated GL4 and GL5 and i know your only suppose to put GL4 in the tranny? Is this going to hurt me in the long run?  
also,  
Not sure what the previous owner was running so im switching to the sythenitc, whats your opinion on changing with a tranny that has 220 on it?

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**Author:** ![DarkForceJackal](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)\
**Post date:** [August 12, 2007, 11:25am UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/2 "2007-08-12T11:25:05Z")

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As far as I know, that means it should be GL4 OR GL5 friendly.

So my guess would be it’d do the job just fine…someone else can confirm this perhaps (i’m currently running 75w90 Redline and it’s been fine)?

Oh, and yeah i’d definitely recommend changing it as maintenance and peace of mind.

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**Author:** ![Osad](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@Osad](https://forums.speedlife.net/u/Osad)\
**Post date:** [August 12, 2007, 11:55am UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/3 "2007-08-12T11:55:53Z")

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I’ve been running the motomaster 80w90 GL4/GL5 and it runs smooth.

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**Author:** ![weaves](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/weaves/32/5624_2.png) [@weaves](https://forums.speedlife.net/u/weaves)\
**Post date:** [August 12, 2007, 3:39pm UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/4 "2007-08-12T15:39:07Z")

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alright thats great, ill be switching it tomorrow. thanks.

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**Author:** ![Osad](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@Osad](https://forums.speedlife.net/u/Osad)\
**Post date:** [August 12, 2007, 7:53pm UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/5 "2007-08-12T19:53:30Z")

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1.8l just so you know.

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**Author:** ![FUNGC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fungc/32/5539_2.png) [@FUNGC](https://forums.speedlife.net/u/FUNGC)\
**Post date:** [August 13, 2007, 2:50pm UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/6 "2007-08-13T14:50:34Z")

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i thought tha tranny needs 2.4L

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**Author:** ![KA24Power](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ka24power/32/5595_2.png) [@KA24Power](https://forums.speedlife.net/u/KA24Power)\
**Post date:** [August 22, 2007, 9:05am UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/7 "2007-08-22T09:05:27Z")

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IIRC tranny takes 2.4, diff takes 1.8

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**Author:** ![G-E](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/g-e/32/5546_2.png) [@G-E](https://forums.speedlife.net/u/G-E)\
**Post date:** [August 22, 2007, 1:36pm UTC](https://forums.speedlife.net/t/gl4-gl5-blend-good-for-tranny/108473/8 "2007-08-22T13:36:18Z")

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the nissan trannys don’t like gl5, it wears/eats one of the types of rings

use gl4 or a gl5 that specifically states it is safe for all gl4 vehicles