Mitsubishi Lancer (2005 - 2007) - 05 Which Gear Oil

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Fri 21 Mar 2008 15:52
05 Which Gear Oil - vin
The handbook states GL4 75/90 gear oil for my Lancer '05, however I can only find GL5 75/90 gear oil.

Is this a more modern version of the GL4 or are they 2 separate oils even though the viscosity is the same?

Will it hurt to use GL5, does anyone know the difference between the 2?

Thanks in advance,
Vin

Edited by Pugugly on 21/03/2008 at 16:28

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Fri 21 Mar 2008 16:33
05 Which Gear Oil - adverse camber
off the top of my head, gl5 can be used in place of gl4 in most applications.

I have it in my mind though that there is a difference to do with sulphates? and possible corrosion of some metals.

But that will be enough to prompt an expert into correcting me!
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Fri 21 Mar 2008 17:17
05 Which Gear Oil - Number_Cruncher
>>Will it hurt to use GL5

Possibly, the additives in GL5 can attack the materials used in some, particularly Japanese, gearboxes. I would stick to using GL4 as per the handbook.


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Fri 21 Mar 2008 18:01
05 Which Gear Oil - quizman
Castrol TAF-X is a 75W-90 GL4 gear oil. Castrol SMX-S is a 75W-85 GL4 gear oil.
So you could try one of those.
I would not use GL5, it does something to the metals, as has been said before.
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Sun 23 Mar 2008 21:06
05 Which Gear Oil - mfarrow
www.performance-oils.co.uk/acatalog/Comma.html

... has a comma equivalent listed semi-synth 75W90 GL4.
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