is diff/tranny fluid the same thing, or do u need 2 different types of oil.....cause im taking my car into honda for the 15k servce...and im already using Mobil 1 for engine oil...but i was told to also swtich to Mobil 1 for "gear oil".....sooooooooo is gear oil the same as tranny and diff oil?

 

No, diff oil is different from tranny oil. You need two different types of fluid. A lot of us are using Mobil Synthetic Gear Lubricant SAE 75W-90 in the differential, and Honda Manual Transmission Fluid Honda Genuine HG in the transmission.

Look here for the two different threads one for the tranny and one for the differential for additional info: http://forums.s2ki.com/forums/showthread.p...threadid=108435

 

Ok.. I'm at 800miles now., should I start to plan on changing my diff oil @ 1k? and should I also change my oil then too?

 

Every 15K

 

This is probably a dumb question but I have never owned a car where I had to have the dif. oil changed. Does have the dif. oil changed make the transmission shifting any smoother? Sorry for the noob question if this has been asked before.

 

differential is at the back of the car.. its what transfers power from the driveshaft (being driven by the transmission) to each rear wheel. Since it has gears inside, it requires a lubricant, which ultimately breaks down and needs replacement.

To improve tranny shifting, you replace transmission fluid..

two separate things.

 

Okay so when people talk about breaking their diffs from the launches it just because it can't handle the power. Thanks for the info.

 

maybe all your previous car ar FR or MR? those are transaxle.

on a Front midship layout on the s2k(transmission), we have one rear diff in the back of the car.


you have three diff for awd cars like dsm

 

so should I change my Diff oil @ 1000k?

 

ahahahahahhaa You're not serious are you?