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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 10-02-2012, 03:31 PM
Bimmer325ipat Bimmer325ipat is offline
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Location: Buffalo NY
 
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Mein Auto: 95 325i
diff fluid change

i have a 95 325i and i am looking to change the differential fluid along with the tranny fluid it is a manual and im just wondering what fluid i should use for the diff i have already decided swepco is probably the best for the tranny but not sure about the diff, what brand and what viscosity? thanks in advance.
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  #2  
Old 10-02-2012, 03:37 PM
Echo46 Echo46 is offline
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Mein Auto: 2006ZCP M3and 1999 M3vert
I always use Redline 75w90 synthetic for the rear differential and Redline D4 ATF for the transmission.
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  #3  
Old 10-02-2012, 03:38 PM
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ZeGerman ZeGerman is offline
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Mein Auto: 1998 BMW 328is
Generally speaking, most BMW enthusiasts prefer Redline fluids for the trans & diff. That's what I would recommend, or perhaps Royal Purple products, which is what I have in my car. You'll have to verify ahead of time which kind of fluid your transmission takes, since there was some variation in the required fluid over the years. There should be a sticker on the side of your transmission. For the diff, you will need to determine whether or not your 325 has a limited slip differential before making a fluid choice. You most likely don't have an LSD, unless your car is equipped with the cold weather package and no ASC. If you do have an LSD, you'll need to make sure you choose a fluid with the appropriate friction modifiers. The viscosity for the diff should be 75w90.
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1998 BMW 328is
1966 Pontiac GTO
2007 Subaru Impreza 2.5i 5-door
View my photos: Caught in the Wild
For sale: E30/E36 front sway links
For sale: OEM E36 328 catback

Last edited by ZeGerman; 10-02-2012 at 03:39 PM.
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  #4  
Old 10-02-2012, 03:41 PM
Bimmer325ipat Bimmer325ipat is offline
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Mein Auto: 95 325i
I can't find either brand in any of the auto parts stores around would using mobil 1 or valvoline 75 w 90 be ok?
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  #5  
Old 10-02-2012, 03:44 PM
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ZeGerman ZeGerman is offline
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Mein Auto: 1998 BMW 328is
Mobil 1 will be fine, but I don't really care for Valvoline products. Keep in mind that if you replace the diff fluid, you will want to order two new aluminum crush washers (from the dealer or online, but they have to be OEM BMW parts), and you'll need to get your hands on (or make) a stubby hex tool to get the diff fill plug out (clearance is an issue, since the spare tire well is in the way - a standard hex tool will not fit). You'll also want a long breaker bar, since the plugs on the trans & diff can be on there pretty good.
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1998 BMW 328is
1966 Pontiac GTO
2007 Subaru Impreza 2.5i 5-door
View my photos: Caught in the Wild
For sale: E30/E36 front sway links
For sale: OEM E36 328 catback

Last edited by ZeGerman; 10-02-2012 at 03:50 PM.
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  #6  
Old 10-02-2012, 03:49 PM
Bimmer325ipat Bimmer325ipat is offline
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Mein Auto: 95 325i
i found a couple stores with royal purple anyways but thanks for the input always appreciated.
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  #7  
Old 10-02-2012, 05:52 PM
Bimmer325ipat Bimmer325ipat is offline
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Can castrol transmax import transmission fluid be used? It says its ok in bmw la2634 and lt71141
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  #8  
Old 10-02-2012, 06:12 PM
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r33p04s r33p04s is offline
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Mein Auto: E36/4/5
So any suggestion on a fluid for a LSD? How do I identify one that will work with said 'friction modifiers'?
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  #9  
Old 10-02-2012, 06:18 PM
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ZeGerman ZeGerman is offline
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Location: Seattle, WA
 
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Mein Auto: 1998 BMW 328is
You just have to buy fluid which is intended to be used with an LSD. Pretty easy, really.

Here is what I'd recommend for an E36 with an LSD:

http://www.turnermotorsport.com/p-36...-gear-oil.aspx
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1998 BMW 328is
1966 Pontiac GTO
2007 Subaru Impreza 2.5i 5-door
View my photos: Caught in the Wild
For sale: E30/E36 front sway links
For sale: OEM E36 328 catback
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  #10  
Old 10-02-2012, 09:09 PM
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r33p04s r33p04s is offline
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thanks!
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  #11  
Old 10-06-2012, 07:40 PM
jitsjaf2009 jitsjaf2009 is offline
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Mein Auto: 1995 325i Convertible
Redline has a site that will show dealers that carry there products in your area. I I used Royal Purple for years until this site sold me on Redline...
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