Just Bought 325i - Maintence Questions - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 11-23-2004, 05:35 PM
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I just bought this 92 325i and wanted to do some maintence to it. What all do you guys do when you 1st buy a BMW? This is my 1st and want it to last a while.

The seller told me he put sythetic oil in the car, is there anyway to test that? The car has 193k on it and I dont want to put synthetic in it and swell the seals then have a leak. What would you do?

Also the tranny was rebuilt 20k ago. Should I switch over to Sythetic ATF? It shifts great now btw.
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#2 (permalink) Old 11-23-2004, 06:38 PM
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what makes you think synthetic will make the seals swell?

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#3 (permalink) Old 11-23-2004, 06:59 PM
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Originally posted by Fruityone@Nov 23 2004, 06:38 PM
what makes you think synthetic will make the seals swell?
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Im not sure about BMWs. In my experiences with other cars that have high mileage and then switch to sythetic from regular motor oil causes seals to swell and thus creates leaks. Correct me if Im wrong here.
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#4 (permalink) Old 11-23-2004, 07:20 PM
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its not the seals swelling and then leaking. its because the synthetic oil removes the deposits left by the previous oils. and if deposits were left in the seals then they start to leak. i dunno id rather have new clean seals then oil seals held together with deposits.

93 325is - SOLD (white car in sig)
92 325i - 220rwhp/205rwtq (RIP)
02 GSXR 600 - 107rwhp/48rwtq
95 M3 - 220rwhp/205rwtq
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#5 (permalink) Old 11-24-2004, 07:16 PM
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Bump- anyone have advice?
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#6 (permalink) Old 11-24-2004, 07:28 PM
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Try to find out if the car has always (or more recently) been serviced with synthetic...if not...I wouldn't switch at this point...or if you do...maybe just a blend...

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#7 (permalink) Old 11-25-2004, 12:36 PM
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if the car already has synthetic in it....i wouldnt go back...simply because its not recommended. and that crap about seals blowing/swelling/cracking is a bunch of shit

93 325is - SOLD (white car in sig)
92 325i - 220rwhp/205rwtq (RIP)
02 GSXR 600 - 107rwhp/48rwtq
95 M3 - 220rwhp/205rwtq
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