20W-50 is equal to Sae 90 W.
Only SAE 30 is equivalent to SAE-30
There is no equivalent.
Sae-20w
Manual says to use SAE 75w-90 or SAE 80w-90 gear oil
SAE 90
Yes, you can use 75w-90 gear oil instead of SAE 90 gear oil
no
sae 90
Sae 75w/90
SAE 80 or SAE 80w-90 below 50 f SAE 90 or SAE 80w-90 0 to 90 f SAE 140 above 50 f consistently
Sae 80w-90 gl-5