90 weight vs 85 weight/140 gear oil.

[GrumpyJoe]

Need some gear oil for my Woods prd7200. It says use 90w. All I can find is 85w. Think I'll be ok?

 

[dickfoster]

Probably or maybe try some multi viscosity gear lube like 75W90. You can find it at any autoparts store. I just put some 75W90 synthetic along with a little Redline Shockproof in the front axle of mine.

 

[aircommuter]

90 is a single weight 85-140 covers 90 and more. The main designation is gl-5.