Went to Honda dealer and they gave me this.
I told them about articles here I have read about mechanics putting in wrong diff and they said they fixed that problem and now use this.
What do you guys think?

 

you didn't have to get that at a Honda dealer. Honda does have an 80w90 , surprised they didn't sell that to you. The Valvoline 80w90 will work fine, along with dozens of other fluids available in the aftermarket.

 

It was around $9
Including my discount

 

Since I have a similar question, I'll use this same thread.

What about Valvoline DuraBlend 80w-90 ?

Link to the product below.

http://www.midwayautosupply.com/show...iliateid=10050

I just put this in my diff and then I read the thread about the LE 1605 dif oil and I was wondering if I'll have to replace the oil or the Valvoline DuraBlend is good enough.

 

I paid $8 for Mobile 1 75W-90 GL5 and $40 for OS Giken.

 

What's up with OS Giken

 

I'm not familiar with the durblend 80w90 difference from their other valvoline 80w90 but they likely all meet the GL-5 fluid spec and it is in the right viscosity so it should work fine. There are numerous fluids out there that "might" possibly work better, but we haven't seen much data to prove one fluid is better than the other. The LE fluids are great products, but will they yield better performance than what you have ?, you'll never know unless you run both of them and then do a used fluid analysis.

 

That stuff should be OK ... but you paid about double for it by buying it at the stealership.

Don't leave it in for too long (no more than about 20,000 miles) in case it shears.

 

Well I could always return it
Should I go with mobil 75w90?
What's the best

 

Go with a full synthetic. Mobile 1 is always available at a good price. I've run it for years. You don't need LSD friction modifier additive with the s2ki differential.