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      08-17-2019, 09:19 AM   #23
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Originally Posted by artem123 View Post
Wow... I must admit BMW and oil are frenemies))) I gave in and bought overpriced BMW 0W 30 twin-turbo oil. I will not return Mobil 1 and use it for my wife's E90. BMW dropped Mobil1 over the favour of something else, while Mobile 1 never changed its formula and in fact, one of the best one around. I dedicated past few days studying this subject and pretty sure that choosing one brand over by another by BMW is nothing but legal mambo jumbo involving who pays more for having their logo on oil cup.
Not quite true.. Apparently, Mobil 1 lost LL01 certification after it changed its formula.

https://www.christopherprice.net/mob...-3460.html/amp


In any case, if you’re changing oil sooner than the ridiculous intervals set by BMW, non-LL01 Mobil 1 should be fine.
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      10-19-2019, 06:31 PM   #24
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I noticed an oil leak in my driveway where I park the X5. Ive tried measuring the oil level using the iDrive system but it always cuts off around 17-20% and goes back to the option of “start measurement” or “cancel”. And yes, countless times I’ve met the criteria of being on leveled ground, on P or N, and engine at proper temperature and it still doesn’t read it. Just yesterday, I got a message saying “oil too low”, so I ran to Walmart to buy Mobil 1’s 0W-40 Euro spec.

Could this be the reason that the iDrive won’t measure the oil?
Also, any common oil leaks in the N55 Sdrive35i X5? Searched the forum but found nothing
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      10-19-2019, 08:54 PM   #25
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Originally Posted by RossBMWZseries View Post
I noticed an oil leak in my driveway where I park the X5. Ive tried measuring the oil level using the iDrive system but it always cuts off around 17-20% and goes back to the option of “start measurement” or “cancel”. And yes, countless times I’ve met the criteria of being on leveled ground, on P or N, and engine at proper temperature and it still doesn’t read it. Just yesterday, I got a message saying “oil too low”, so I ran to Walmart to buy Mobil 1’s 0W-40 Euro spec.

Could this be the reason that the iDrive won’t measure the oil?
Also, any common oil leaks in the N55 Sdrive35i X5? Searched the forum but found nothing
It happened to me when the oil started degrading. Low oil message popped up.
Ironically, I used a technically better Mobil 5W30.
Once I did an oil change, problem went away.
Buy I never experienced the measurement process ending at 17 to 20%.
As for an actual oil leak, I had one a year ago but thought it was A/C condensation. Was a high pressure oil leak and engine had to be degreased. $1000 for parts and labor to clean up the mess.
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      10-20-2019, 04:35 PM   #26
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Quote:
Originally Posted by menelaos View Post
It happened to me when the oil started degrading. Low oil message popped up.
Ironically, I used a technically better Mobil 5W30.
Once I did an oil change, problem went away.
Buy I never experienced the measurement process ending at 17 to 20%.
As for an actual oil leak, I had one a year ago but thought it was A/C condensation. Was a high pressure oil leak and engine had to be degreased. $1000 for parts and labor to clean up the mess.
Oh man. I’ve had the X5 since late August but this oil leak probably just happened as of 2 weeks ago. This is the first time I’ve had to pour some oil in there. Anyway, I took it to my mechanic but I got there when he was leaving for the day. He gave it a quick inspection from the top of the engine bay and pointed out the leak may be coming from the oil cooler (gasket). He said it’s a high pressure oil leak and somewhat common on N55 motors. He also mentioned it’s an easy DIY, in fact told me in detail everything I have to remove to get it done but he said he would charge me about $100 to do it and clean up all the oil mess underneath and around the engine. He’s also gonna look for other leaks, if any. I guess $100 doesn’t sound too bad.

Where was your oil leak coming from?
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Last edited by RossBMWZseries; 10-20-2019 at 04:49 PM..
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      10-21-2019, 07:39 AM   #27
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Originally Posted by RossBMWZseries View Post
Oh man. I’ve had the X5 since late August but this oil leak probably just happened as of 2 weeks ago. This is the first time I’ve had to pour some oil in there. Anyway, I took it to my mechanic but I got there when he was leaving for the day. He gave it a quick inspection from the top of the engine bay and pointed out the leak may be coming from the oil cooler (gasket). He said it’s a high pressure oil leak and somewhat common on N55 motors. He also mentioned it’s an easy DIY, in fact told me in detail everything I have to remove to get it done but he said he would charge me about $100 to do it and clean up all the oil mess underneath and around the engine. He’s also gonna look for other leaks, if any. I guess $100 doesn’t sound too bad.

Where was your oil leak coming from?
Same area, but it had splattered all over the engine, so he had to pull the engine apart to degrease it. It was my fault ignoring it, so I paid for my negligence. You just think this can't happen to you!
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      10-21-2019, 11:09 AM   #28
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Originally Posted by menelaos View Post
Same area, but it had splattered all over the engine, so he had to pull the engine apart to degrease it. It was my fault ignoring it, so I paid for my negligence. You just think this can't happen to you!
man that blows! I'm sorry it happened to you. Glad I caught it just in time. I'm really hoping there's no other leaks. I'll update this once he repairs it.

Didn't mean to thread jack so to keep this relevant; I used Mobil 1 0w-40 European spec to top it off
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      10-21-2019, 07:44 PM   #29
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Originally Posted by RossBMWZseries View Post
man that blows! I'm sorry it happened to you. Glad I caught it just in time. I'm really hoping there's no other leaks. I'll update this once he repairs it.

Didn't mean to thread jack so to keep this relevant; I used Mobil 1 0w-40 European spec to top it off
If you do the crime, gotta pay the fine sir!
My SA recommended 5w-30, was using 0w-40 for a about a year before that.
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      10-22-2019, 10:59 AM   #30
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I've had my X5 for about year and half now (almost 80K miles on the clock now) and I've been doing my oil changes right around the 6K mile mark. Been using Mobil 1 0W40 with no issues (I live in TN so not super harsh winter here), but this thread has me second guessing that especially since my X5 is getting up in the miles. Thinking about switching to Castrol Edge should I stick with the same weight or change to 5W30?
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      10-22-2019, 11:53 AM   #31
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Originally Posted by M302_imola View Post
I've had my X5 for about year and half now (almost 80K miles on the clock now) and I've been doing my oil changes right around the 6K mile mark. Been using Mobil 1 0W40 with no issues (I live in TN so not super harsh winter here), but this thread has me second guessing that especially since my X5 is getting up in the miles. Thinking about switching to Castrol Edge should I stick with the same weight or change to 5W30?
Will be changing oil within the next couple of weeks.
Will check w/my SA again on 0w40 v 5w30 and report back.
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      10-22-2019, 04:50 PM   #32
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No need for head spinning. The manual lays out all the various viscosities. Just make sure your oil is LL-01. Looking forward to my first X5 oil change at upcoming CCA DIY event.
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      10-23-2019, 10:27 AM   #33
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Originally Posted by menelaos View Post
Will be changing oil within the next couple of weeks.
Will check w/my SA again on 0w40 v 5w30 and report back.
Thanks bud!
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      10-23-2019, 12:03 PM   #34
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Originally Posted by EdgyE36 View Post
No need for head spinning. The manual lays out all the various viscosities. Just make sure your oil is LL-01. Looking forward to my first X5 oil change at upcoming CCA DIY event.
I filled her up with 0w30 BMW original oil. End of story))
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      10-30-2019, 07:14 PM   #35
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Quote:
Originally Posted by artem123 View Post
Quote:
Originally Posted by EdgyE36 View Post
No need for head spinning. The manual lays out all the various viscosities. Just make sure your oil is LL-01. Looking forward to my first X5 oil change at upcoming CCA DIY event.
I filled her up with 0w30 BMW original oil. End of story))
"BMW" oil is snake oil. It's the flavor of the week for whatever company they go into bed with this month.

Y'all just need to do some research on what oil weight even means before all these questions. There's no "wrong" answer here. Just what suits your needs best. Where you live, the season, age, all play factors. That's what you should use to pick YOUR oil weight. Brands...best is Amsoil hands down don't even try and dispute that, royal purple is a close second but cheaper than Amsoil, Mobil 1 is still and always will be a tier 1 contender (yes I'm aware it technically doesn't meet LL-01 anymore), Castrol is good too and Shell (BMW oil) is fine too. Liqui-moly earns honorable mention although not as familiar with them but I do like their fluorescent additive to check leaks
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