11-11-2023, 06:02 AM | #1 |
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How Often Do You Change Oil?
My 2012 E70 X5 has 120k miles and I have been changing oil every year (10k miles). However, during the past year I noticed the oil level had dropped to only 45% when I changed oil. Not sure where the oil went but I am considering to change oil sooner now. I am always using Mobile 1 0w-40. Any suggestions would be appreciated! Thanks!
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11-11-2023, 09:40 AM | #2 |
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Drives: 2006 BMW 330i MT
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Garage List 2006 BMW 330i [8.21]
2009 BMW 328i Touri ... [7.90] 2013 BMW X5 35i [7.63] 2011 BMW 528i [8.75] 2006 Mazda3 [5.50] |
I always go with 10k changes on normally aspirated cars, but am new to the turbo world. I think 5k is better for anything with forced induction from what I read.
Clarifying question for you: When you say 45% loss, are you talking about the min/max bars on the oil status screen like the one below? If it just drops ~half way there, you're okay. Yes it's a bit of a loss, but within reason. Just half a quart out of the seven in the system. Especially not a problem if that loss is over 10k, miles. That's actually great! You don't need to top off or anything until it drops to the bottom of that range. |
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zjuyyhu15.00 |
11-11-2023, 12:58 PM | #3 |
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I change the oil on mine 3.5i around the 10K Km. After a topic about oil here and on advice from the tuner i use 5w 40 full synthetisch oil.
The engine needs 6.5 liters of oil ( with filter change) then it will be at max on the display. |
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StradaRedlands4949.00 |
11-11-2023, 01:20 PM | #4 |
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Garage List 2006 BMW 330i [8.21]
2009 BMW 328i Touri ... [7.90] 2013 BMW X5 35i [7.63] 2011 BMW 528i [8.75] 2006 Mazda3 [5.50] |
I've changed over from 5w30 to 5w40 due to the heat 3/4 of the year here. 90F to 110F (32-43C) much of that time. It's going to be 80F/27C tomorrow mid November! That plus a hot-running engine, just seems like it's better with a slightly thicker oil. LL-01 only of course.
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11-11-2023, 08:13 PM | #5 | |
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Quote:
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StradaRedlands4949.00 |
11-11-2023, 08:17 PM | #6 |
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Garage List 2006 BMW 330i [8.21]
2009 BMW 328i Touri ... [7.90] 2013 BMW X5 35i [7.63] 2011 BMW 528i [8.75] 2006 Mazda3 [5.50] |
Great! Yes, that measurement is just for one quart (liter?). You could top off, but it's fine to wait till an oil change or see if it goes any lower.
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zjuyyhu15.00 |
11-11-2023, 10:32 PM | #7 |
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Every 5k miles with Castrol Euro 5w-30 full synthetic, oil flush before it’s drained and synthetic oil treatment added with the oil.
My clean valve train agrees. |
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StradaRedlands4949.00 argento538.00 |
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