s2000nnj

I found 80w90 gear oil GL5 at walmart..I read that 80w90 is the default oil for the S but it seems like most of the S owners are using 75w90 synthetic..what do you recommend? is the synthetic really necessary for the gear?

dedonderosa

Honda recommends SAE 90 GL-5... yes you should run synthetic, a lot of people on here use 75w90 mobil1 and been fine.

Personally i use LE1605

redlineracing

I run and recommend Amsoil 75-90 Severe Gear diff fluid.I run it in my 03S and my 02Z.No problems.

\rlr
carolina

PS:I also run Amsoil 5-30 Syn trans oil too.IMO...much better than the Honda MTF.I've tried many fluids and this is the best for me here in the south.

Round 3

same here. I also use amsoil severe gear 75-90. good stuff.

takeshi

What exactly are you expecting from this thread? For any fluid question of this type there are countless existing threads with people posting their preferred fluids. It doesn't seem like this thread will be any different.

Emil St-Hilaire

I use RL MT-90 in the tranny,and Amsoil 75W140 in the diff...

idea-catalyst

Mobil 1 75W140 in the diff. Honda MTF in the tranny.

afzan

the closest match to SAE 90 specs is 75w110

Amsoil make severe gear in 75w110

Swiftoy