Liqui Moly High Performance Gear Oil (GL4+) SAE 75W-90 | 1 L $14.99 w/free Amazon prime shipping

[bullwinkle]

I have that in the Corolla’s C59 at the moment, it’s been fine.

 

[bullwinkle]

I would love some $5/qt gear oil to keep our truck's axles happy for the next several years. As promisqious as I am with fluids, I can't quite get my mind around the GL4+ spec, given that LM also makes GL5 product.

It doesn’t have the EP additives (like sulfur) that are hard on brass/yellow metal synchronizers.