Author Topic: Tranny fluid leak (Read 2297 times)

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...

dvmotorsports · « **Reply #1 on:** July 17, 2008, 09:38:39 PM »

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

nicknikolovski · « **Reply #2 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.

Wise Old Dog · « **Reply #3 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.