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DISCUSSION => Engine + Driveline => Topic started by: BMABMW on July 17, 2008, 07:25:45 PM

Title: Tranny fluid leak
Post by: BMABMW on July 17, 2008, 07:25:45 PM

So I've got gear oil leaking from the rear shaft seal on my 5 spd 318i. I got another seal already but I'm not sure what grade of oil to use. I'd like to use royal purple if I can but I don't know the grade...any suggestions? It's a 95 318i...

Title: Tranny fluid leak
Post by: dvmotorsports on July 17, 2008, 09:38:39 PM

i might be wrong, but i though royal purple syncromesh (ATF) was only one grade.

Title: Tranny fluid leak
Post by: nicknikolovski on July 18, 2008, 03:20:04 AM

Check the sticker on the side of the tranny for fluid type and then you can determine the grade. eg - Mine says ATF so I just use ATF.

Some other ones may require special BMW oil with certain grades. Just check you sticker.

Title: Tranny fluid leak
Post by: Wise Old Dog on July 18, 2008, 03:30:47 PM

Royal Purple Syncromax is made for manual trannys that use ATF. It only comes in one flavor. I use it in both of my 318's with good results.