yea but its perfect for what honda reccomends..... i tried 75-90 mobil and i did a heat test on the diff and found the case had a higher temp with the 75-90 then the le 1605 so...... i guess to each his own

 

LE-1605 is only thick in very cold temps, I would use a 75w90 if you are using the car in cold weather. In warm temps the fluid is perfect for what Honda recommends.

 

i LE 1605

 

If you get to highway speeds like 75 MPH for any lenght of time the diff will get hot, no matter how cold it is outside.

 

I just found that Mobil 1 just do the 75-90 and 75-140 I confirmed that on the website. There's no 75-110 bottle.

I'm looking foward to buy AmsOil severe gear 75-110, or buy online the LE 1605

 

its actually 80w90, so its a little thicker than the 75w90 that is recommended. le-1605 is a great fluid and i use it in my s2k all yr round.

 

orangebarius Posted on Feb 16 2010, 09:50 PM
Hmmmm.......

Actually......

#1 - LE-1605 is a single grade SAE 110 gear oil.
It has no "W" rating.

#2 - 80W-90 and 75W-90 are both within the SAE 90 range when hot (@ operating temp)
This could mean the 75W-90 is thicker (its a range).
Without the specs you can't tell.

#3 - In every S2000 manual the recommended diff oil is SAE 90 GL-5 (GL-6) hypoid gear oil.

Just to give you something to think about: No, SAE 110 is not too thick for the diff.
The "old" SAE 90 had a wide range covering the "new" SAE 110.

Oh well......