Author Topic: Transmission and Diff. oils. (Read 32388 times)

asubimmer · « **Reply #15 on:** June 04, 2006, 11:19:28 PM »

I just did mine like 2 weeks ago, go ahead and buy 4 quarts from Bav if they can con you into it. You only need about 1.5

mikesjo · « **Reply #16 on:** June 05, 2006, 01:09:51 AM »

Thanks asu, so 2 bottles should do it for the tranny

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romkasponka · « **Reply #17 on:** June 05, 2006, 04:14:24 AM »

more oil is better? better LSD cooling?

asubimmer · « **Reply #18 on:** June 05, 2006, 12:03:01 PM »

Make sure you can get your fill plug out BEFORE you take out your drain plug

Also make sure your car is warmed up so most of the old fluid will come out. Then take out the fill plug, THEN the drain. Once its all out put the drain plug back in and you will need to pump the new fluid into the fill plug hole. I didn't have a pump handy so I used a fuel syfoner (or however you spell it :p )

Mine were regular bolts not the allen type like most e30s have. So I assume all 318is's use the 17mm socket on their tannys like mine. The diff is still the allen socket though IIRC.

Hope that helps some.

mikesjo · « **Reply #19 on:** June 05, 2006, 12:56:10 PM »

Quote from: romkasponka

more oil is better? better LSD cooling?

I think it can only take that much amount, not more.

asubimmer · « **Reply #20 on:** June 05, 2006, 01:12:21 PM »

Quote from: mikesjo

I think it can only take that much amount, not more.

exactly, you can't overfil the tranny b/c it just poors out onto the ground if you put to much in.

shellback · « **Reply #21 on:** June 05, 2006, 01:19:17 PM »

Any objections on using AMSOIL?
Can't get Redline down here :mad:

asubimmer · « **Reply #22 on:** June 05, 2006, 01:23:46 PM »

my advise is have it shipped to you, redline is used at Korman for a reason

shellback · « **Reply #23 on:** June 08, 2006, 02:42:59 PM »

can't ship that stuff via air

318isle · « **Reply #24 on:** June 16, 2006, 02:24:22 AM »

I have Amsoil in mine, and it's great!
I used to have Redline, but I find Amsoil makes the shifts a little smoother...maybe it's all in my mind, but I like it. I have since put Amsoil through out the car; motor, trans, diff. Really I think it's just a matter of preference.
As for ATF or MT, talking with Mike Miller, he says, ATF if you are hard on your trans (read mis-shift, grind etc.) while it's cold. MT if you're not hard on your trans during warm up. Basically the ATF will help with the synchros as warming up will be quicker, but MT will take longer to warm up, but is better for synchros.

mikesjo · « **Reply #25 on:** June 17, 2006, 12:19:09 AM »

Quote from: 318isle

Basically the ATF will help with the synchros as warming up will be quicker, but MT will take longer to warm up, but is better for synchros.

How does that work?!

318isle · « **Reply #26 on:** June 17, 2006, 01:50:54 AM »

Mike didn't give an explanation why, but I'll ask.
I believe it might be because the ATF is thinner not sure.

318isle · « **Reply #27 on:** June 17, 2006, 01:57:21 AM »

Here's an old email on the topic I got from Mike. This was just prior to the new 6 series coming out.

Aloha,

I am in North Carolina, covering the 6 Series Delivery Experience. It's not Hawaii, but it's a far sight warmer than Pennsylvania. I'll be flying home tonight.

I recommend Red Line 20W-50 for the S52, and as always, MTL in the gearbox and 75W-90 in the differential. I only use Red Line D4 ATF in manual gearboxes where I cannot trust the driver to properly baby the shifter when it is cold. The D4 ATF shifts really nice when it is cold, but MTL is getter for the bearings.

Sounds like a hot M coupe!

I'm thinking about ordering a new 325Ci.

Mahalo and Aloha,
Mike

I hope this helps to answer you question

///m42 sport · « **Reply #28 on:** December 08, 2015, 12:10:03 AM »

wow old topic but I just heard about the atf vs mtl debate and am paranoid now. I've been running mtl for the past few years without issues. Havent paid attention to if I have a red or green label or the plugs. Have to check that now. Oh also I drive my 318 pretty hard. currently at around 300k on original tranny.