Hey Fellas

I tried the search function but it wasn't working

Has anyone tried redline diff fluid? My mechanic, who is a very well regarded S2000 tuner here in SoCal, let me know that he went with Redline diff fluid instead of the OEM Honda fluid.

I seem to be getting a bit of low rpm whine under acceleration in gears 1 and 2. But no whine in other gears or when already up to cruising speed.

Is this normal?

Anybody else runnin the redline diff fluid?

Any feedback is appreciated.

 

This would be pretty easy since there is NO OEM Honda diff fluid. Your Honda dealer must get it from Honda motorcycle division.

If you put Redline Shockproof into your diff, you might want to know this:
https://www.s2ki.com/forums/index.php?showtopic=141409

 

Been using Redline 75W90,gear oil for quite some time,and never any problems, or "whining".
Are you sure the whining was not there before?
Change it to Mobil 1,you'll see if it goes away!

 

I was using Redline Diff fluid for a while on my stock diff some time ago and I had no issues until my rear blew. The rear didn't blow because of it however.

If you have a mechanical whine, by trying diff fluid will not quiet it. Maybe a slight bit but not really.

 

another RL 75w90 user here... (and hence another data point?)

was on whatever-the-stock-fluid until last month. changed out to 75w90 (stock fluid was still near crystal clear), no increase in whine/noise... now that Tanabe catback OTOH....