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Thread: What kind of motor oil is best,,,535i

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  1. 07-09-2004, 10:54 AM #1
    aton Guest

    Default What kind of motor oil is best,,,535i

    What is the best kind of motor oil for my 1990 535i E34

    thanks...
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  2. 07-09-2004, 11:01 AM #2
    G Feller
    G Feller is offline Moderator
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    Default How's the climate where you live?

    That might influence the answers you get.

    Quote Originally Posted by aton
    What is the best kind of motor oil for my 1990 535i E34

    thanks...
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  3. 07-09-2004, 11:16 AM #3
    jjg43
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    Default Mobil 1 0w40

    Quote Originally Posted by aton
    What is the best kind of motor oil for my 1990 535i E34

    thanks...
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  4. 07-09-2004, 11:38 AM #4
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    winfred
    winfred is offline 5-10 Grand Master
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    Default

    i run castroil gtx 20w50 in both my bimmers 90 325ism and 90 535ia, i like 20w50 in our hot as **** climate on motors without hydrallic lifters (m10/20/30), and 10w40 with hydrallic lifters (m50/52/60/62)
    all america wants is cold beer warm cat and a place to take a poop with a door on it
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  5. 07-10-2004, 10:02 AM #5
    Derek A.'s Avatar
    Derek A.
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    Default

    summer=mobil 1 15w50 winter=mobile 1 0w40

    Derek.-
    Derek A.
    90 535i 5 Speed - Style 5 17"
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  6. 07-10-2004, 10:14 AM #6
    Russell
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    Default Mobil 1 0w40 seems great year round in Kentucky

    Been running Mobil 1 15w50 year round. Just switched (last week) to Mobil 1 0w40 and car seems quieter on first start, smoother and seems to have a bit more get up and go. As we seldom see temperatures in Kentucky above 95 or below -10, 0w40 seems like a good choice.

    BTW, my indy likes Mobil 1 15w50 on older cars. Says they were not really designed for lighter weight oils! It is my understanding that 0w40 is not just a lighter oil! Anyway, I followed the experiences of the board members in this case.

    Just my 2 cents.

    Quote Originally Posted by Derek A.
    summer=mobil 1 15w50 winter=mobile 1 0w40

    Derek.-
    Last edited by Russell; 07-10-2004 at 04:57 PM.
    Thanks,

    1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment
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