Ahsan Malik

which rear differential oil do u recommend? I am also going to be doing the tran oil change with Amsoil.

Genuine OEM Honda VTM-4
http://www.amazon.co...asin=B00BYFE6LO

Mobil 1 104361 75W-90 Synthetic Gear Lube
http://www.amazon.co...r/dp/B000ONZXPK

AMSoil (there are so many AMSoil options...which one should fit my car as it is 05, with 120k)
http://www.amsoil.co...duct/gear-lube/

Swepco 201 Gear Oil, 80/90 (used in Porsche)
http://www.amazon.co...asin=B00BYFE6LO

dlpowered89

I've heard good things about Amsoil severe gear

staylor725

I use amsoil 75w140 in my Puddymod diff.

zeroptzero

Honda VTM-4 can't be compatible with the S2000 diff. It has the viscosity comparable to a 20 weight oil, that can't be good as it is way too thin. Cross that off the list.

I'd recommend LE1605 which is an SAE110 fluid , it has worked great for me. Amsoil 75w110 and 75w140 are also good choices. I don't know anything about the other fluid, but I prefer something that is at least a 110 , I try to avoid anything that is 95 or lower, just my preference.

Memo6453

its been covered a bunch of times... lots like the 75w-110 from Amsoil. Depends on applications. search for the previous posts about it. good info. I run 75w-90 Mobil 1 but i might switch to Amsoil next go around. I change every year due to low mileage otherwise i say change every 15k under normal driving.

And there isnt an OEM Honda Diff Fluid fyi

Chuck S

I'd recommend LE1605-- +1.

-- Chuck

ikaros_s2K

I'm using amsoil 75-110 for a couple of years now and I'm very satisfied as well. The car is driven sometimes at the track as well with no issues what so ever.

Emil St-Hilaire

I'd recommend LE1605,if you can find it.
I could not,so I'm using Amsoil 75-140.

saving4one

LE1605 can be found at Rick's. I've been using it since my first diff fluid change, no problems. Been pretty abusive the last couple of years

INDYMAC

LE1605