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Thread: What kind of oil should i put in my 1990 535i M30 Engine?

  1. #1
    Join Date
    Mar 2006
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    Default What kind of oil should i put in my 1990 535i M30 Engine?

    What kind of oil should i put in my 1990 535i M30 Engine, I want to have a good oil pressure, when i put 5W 30 the oil pressure light kept on coming on when the engine heat was at half.

  2. #2
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    synthetic mobil 1 0w-40 if you can find it is the top choice of most people here.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  3. #3
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    Default

    Quote Originally Posted by 632 Regal
    synthetic mobil 1 0w-40 if you can find it is the top choice of most people here.
    I tryed looking for that one for some reason i cant find any here in canada seems to be rare

  4. #4
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    a synthetic 5-40 is also a good choice. There are several brands in the US . Not sure about Canada. I am currently using Castrol Syntec 5w50. No issues.
    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

  5. #5
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    I had to mix a few of the 5w-50 with the M1 last change. Just looked for more and now thats not anywhere lol...what a conspiracy. Sorta have a 2.5w-45 goin on.

    Quote Originally Posted by Russell
    a synthetic 5-40 is also a good choice. There are several brands in the US . Not sure about Canada. I am currently using Castrol Syntec 5w50. No issues.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  6. #6
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    Fort Worth, Tx
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    Default

    I guess I'm one of the few people using good ole non-synthetic Castrol 20W-50

  7. #7
    Join Date
    Aug 2004
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    162

    Default Oil choice

    Quote Originally Posted by we_call_him_doher
    I guess I'm one of the few people using good ole non-synthetic Castrol 20W-50
    Me too. Oil and filter change every 3000 miles.

    Adnan

  8. #8
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    Wellington,New Zealand
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    low visc synthetic gives much better protection at start where just about all your engine wear occurs
    Gone but not forgotten

  9. #9
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    Redline 5W40

    however if you are getting an oil pressure light, you have some serious engine problems that need to be addressed..... or the oil pressure sensor died.

  10. #10
    Join Date
    Feb 2004
    Posts
    291

    Default same here...

    When I bought my 1991 535i about 7 years ago, I called the dealership and asked them what oil they would put in it if I brought it in for an oil change. They said BMW 20W-50. Then he proceeded to tell me that Castrol packaged the BMW oil. So, I've put Castrol GTX 20W-50 in my engine ever since. I started with 67,000 miles and now have 147,000. I've had no problems at all. Frankly, I think full synthetic is overkill and a waste of money for standard engines. I mean, the BMW engineers think it's okay for the oil service light to come on up to 9-10,000 miles between changes WITH standard oil. How many people do you know who change their non-synthetic oil every 3-4,000 miles and have had oil related problems? I don't know of anyone personally. A person would probably be better to stick with regular oil and use the savings to buy a pressure luber that builds oil pressure in the engine before allowing the engine starter to engage. Who knows, your engine might last forever.

    Grace and peace,

    Robert K
    1991 535i

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