Gearbox Oil Grade

[Bristow]

Hi,

Went and got some new gearbox oil yesterday. In my handbook it says it should be 75w80. But when i went down the shop there booklet (Carlube) said 75w90. Is this ok to put in it? Whats the difference? I know its either a bit thinner or thicker! But thats about all!

Thanks

 

[Russ_16v]

i would go for the correct stuff mate, personal experience but iv tried both and the 75w80 feels better

 

[Bristow]

Anyone else?

 

[edde]

75 90 is fine

 

[OllyTB]

Go with the manufacturers grade if possible, it's unlikely to cause any terminal damage but may affect shift quality s previously mentioned