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      06-30-2021, 02:44 PM   #1
Basir
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Hi folks,

Yes, there are 100 threads on oil change interval. But everyone talks about mileage and not the time.

For a multitude of reasons, I drive my M3 only around 1000-2000 km per year in a span of 1-2 months. The rest of the time, it is stored. (It is started and moved around)

Should I stick to the 2 year interval the dealer is telling me, or do it every year anyways?

I changed it at the end of last season (around 11 months ago) and have driven it around 2000 km since, and I'm taking it to the dealer for other work. I'm wondering if I should change the oil because it's been a year.

Car has 50,000km, and has been changed only on schedule (the KM limit or 2 years) by previous owners.

Anyone know what's so special about this oil that the dealer and the car computer says 2 years is fine?
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      06-30-2021, 02:50 PM   #2
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I'd go with an annual change. Once a year.
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      07-01-2021, 02:52 AM   #3
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What (RoastBeef) he said. Once a year.
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      07-01-2021, 05:24 AM   #4
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Since your prev. owners neglected, every 6 months with hard pull in between to blow off moisture from the powertrain components.
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      07-01-2021, 10:29 AM   #5
Basir
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Quote:
Originally Posted by kyrix1st View Post
Since your prev. owners neglected, every 6 months with hard pull in between to blow off moisture from the powertrain components.
How is following the recommended intervals considered neglect?
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      07-01-2021, 10:53 AM   #6
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Quote:
Originally Posted by Basir View Post
How is following the recommended intervals considered neglect?
2 year or 25,000km were intervals when BMW was ambitious to push "efficient dynamics", which was never going to work. Since mid 2010, they rescinded on that and cut the recommended intervals to half; 1 year or 7000 miles.
Oils have gotten better in terms of extended OCI since 2008 yet there is precisely ZERO oil that can withstand 25,000km of screaming V8, so your engine is likely gunked up (check the oil filter housing or oil cap for signs).
Therefore, the only way to properly clean this is do more frequent oil changes.

I personally change 2-3k miles, 6 months on all my cars. Oil analysis reports suggest that this is the correct interval for my spirted driving (high rpm, high load, high lateral G).
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      07-02-2021, 12:54 PM   #7
Basir
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My M3 is a 2013, which is after your 2010 change date. So they should be on the new 1 year interval? But my dealer and the car computer still says 2 years. Again, time interval is my concern because KM are less than 3000KM per year.

Anyways, I was more looking for confirmation or reasoning on the 2 years, because I don't believe it myself. I'll get it done when I go in for the "brake fluid service" that's due.
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      07-02-2021, 03:34 PM   #8
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2 years for oil changes is fine. I wouldn't turn on the car and move it around unless you're going to let it get completely up to temperature at speed.
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      07-02-2021, 03:38 PM   #9
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It really depends on the environment and how the car is stored. It is recommended that the oil be changed on an annual basis, when the mileage is low.
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      07-05-2021, 05:56 AM   #10
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2k - 4kkm in 2 years? I'd stick to every second year mate, time doesn't wear on the oil.
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      07-06-2021, 08:05 PM   #11
Basir
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I did it anyways. Dealer gave me a "deal" at $215 CAD + tax lol

Thanks for the input, folks
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      07-13-2021, 10:13 AM   #12
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I have a few cars that get very low miles put on them each year. I change the oil annually in these cars but not the filters. The most wear put on the motor is that first start after the oil change before the pump has a good prime. I do the filter every other year.
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