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      06-14-2019, 07:14 AM   #1
vafan13
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new (to me) M5, need to top off oil, what to use?

Heyo,

Oil level warning came on. When the dealer changed it they put in either Mobil 1 or Castrol. Am I good to just buy a quart of Castrol Edge 0W-30 (or 0W-40) and top it off, regardless of which of those two it is?

Last edited by vafan13; 06-14-2019 at 09:35 AM..
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      06-14-2019, 09:46 AM   #2
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Hello, yeah you can put in either one really. I would recommend knowing exactly what oil they use OR do the oil change yourself and buy some extra for top-offs. I personally use liquid moli 5w-40.
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      06-14-2019, 10:20 AM   #3
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I usually buy a couple extra liters of the oil i used to change the oil (use BMW 5w-30) but i once topped off using Mobil 1 5w-30 because i wasn't going to be home for a few days and it did the trick, no issues.
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      06-14-2019, 10:37 AM   #4
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Quote:
Originally Posted by Ickdeep View Post
Hello, yeah you can put in either one really. I would recommend knowing exactly what oil they use OR do the oil change yourself and buy some extra for top-offs. I personally use liquid moli 5w-40.
thanks. this was the dealer I bought the car from and they're 3 hours away, so doubt they'll ever do it again. I will probably do the actual oil changes myself going forward. It's been about 2.3K miles since it was changed, I'll likely change it all out at ~5K.

When I talked to the dealer on the phone just now they said most likely it was mobil 1 they put in it, so I'm just going to grab a quart of mobil 1 0W-40, given that's what's LL01.
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      06-17-2019, 11:01 AM   #5
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They likely didn't take the time to drain all the oil correctly, nor the time to fill it correctly. There is a big oil cooler on the front of the engine, right where the grill takes a big gulp for fresh air. For the price and availability, you likely will not go wrong with the M1 0w-40 Euro Formula. I think the key to protecting the bearings is in the selection of a good full synthetic 40w viscosity. (Find the one with the lowest Noack that you can.)

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      06-25-2019, 12:33 AM   #6
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Quote:
Originally Posted by vafan13 View Post
Heyo,

Oil level warning came on. When the dealer changed it they put in either Mobil 1 or Castrol. Am I good to just buy a quart of Castrol Edge 0W-30 (or 0W-40) and top it off, regardless of which of those two it is?
How can you not complete such an easy task of draining and filling engine oil correctly when you work at the dealership...

I pray the tech simply didn't fill oil to correct level and it's not your oil pump
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      07-02-2019, 11:09 AM   #7
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Quote:
Originally Posted by mrtt View Post
How can you not complete such an easy task of draining and filling engine oil correctly when you work at the dealership...

I pray the tech simply didn't fill oil to correct level and it's not your oil pump
Sorry, should have specified: there was ~2350 miles between the dealer doing the oil change and me getting the low level light. Based on what I've read about this car's oil consumption, that seems like a completely reasonable amount of time to burn through a quart. (correct me if wrong).
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      07-02-2019, 08:22 PM   #8
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Quote:
Originally Posted by vafan13 View Post
Quote:
Originally Posted by mrtt View Post
How can you not complete such an easy task of draining and filling engine oil correctly when you work at the dealership...

I pray the tech simply didn't fill oil to correct level and it's not your oil pump
Sorry, should have specified: there was ~2350 miles between the dealer doing the oil change and me getting the low level light. Based on what I've read about this car's oil consumption, that seems like a completely reasonable amount of time to burn through a quart. (correct me if wrong).
That sounds normal. I use LiquiMoly to top off and also at my own oil changes. Somehow, the engine burns less oil when I use LiquiMoly
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      12-22-2019, 03:55 PM   #9
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Quote:
Originally Posted by HXS View Post
That sounds normal. I use LiquiMoly to top off and also at my own oil changes. Somehow, the engine burns less oil when I use LiquiMoly
what spec molly do you use?
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      12-22-2019, 04:20 PM   #10
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Quote:
Originally Posted by vinsanem5 View Post
Quote:
Originally Posted by HXS View Post
That sounds normal. I use LiquiMoly to top off and also at my own oil changes. Somehow, the engine burns less oil when I use LiquiMoly
what spec molly do you use?
Special Tec LL 5w30
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      12-26-2019, 06:58 AM   #11
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I'm glad to hear you will change it yourself going forward. It's quite easy on these cars, albeit a bit messy for the filter change.

I use Mobil 1 0w-40. Been about 20,000 miles since I bought the car. I change it every 5k miles. My consumption has decreased as well. I top off 1/2 quart at a time (as measured by the OBC). I get about 3,000 miles per quart so generally I put in 1 quart and by the time it's low enough to top off again I'm ready to change the oil so I don't bother. 1 quart between changes is like heaven! haha. I'm used to my e39 M5 that averages 1 quart every 1,000 miles like clockwork for the past 295,000 miles.
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