So i went into the Honda dealer last week to buy Honda trans and differential fluid. I bought the trans fluid no problem but they had no "OEM HONDA" fluid recommendation. That kind of bothers me because im the type that uses what Honda tells you to use. The guys in the shop said valvoline but im definatly not a big valvoline fan.

What are you guys using sence Honda has no recomendation?

Redline?
Royal Purple?
Mobil1?

 

Mobil 1 75W90

 

Mobil 1 75W90

 

there's a really good write up in the FAQ's.

 

Mobile 75w90. I have been through about 4 diff services and I have no complaints

 

No way to quantify it but I noticed a louder rear end whine with synthetic 75-90. Decided to change to the Almasol straight 90 weight. It seems quieter.

 

I use LE 607 (SAE 90), but will have to switch over to LE 1605 (SAE 110)on my bext drain and fill (LE 607 has been discontinued).
Since you live in Wisconsin (Arctic), AMSOIL SVT 75W110 would be my first choice if I drove during the winter at all.

 

Thank you for all of the kind replies. I live in WI correct, but I do not drive the S2000 in this weather (besides 2-3 times depending on movign the car)

 

I used mobil 1 75-90 and had a whine @ the differential only when letting off the gas in gear. I found it to be the problem when I changed to regular(dino) 80-90 and noise was gone. I only have 9k on the clock of my 06.

 

i use redline 75/90 its Great have no prob.