Oil & Fuel SAE80W 90, suitable ?

[MoMower]

Gents, is 80W90 a suitable replacement for SAE 80, in my mower deck gear box? TIA

 

[RalphVa]

Yep.

Ralph

 

[mguitas]

I have that in my front axles.

 

[mossdown]

That is what I use in all my Bush Hog gear housings. I change them out yearly. I have had 0 issues with any of them.