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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Jan-11-2018, 07:55:58 PM   #11
grannyknot
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Default Re: Oil change before or after car sits for awhile?

Drain it before you deploy, put a note taped to the steering wheel that says "NO OIL, DO NOT START"
When you get back crack open your fresh oil and fill, Fresh oil sitting in an oil pan for six months isn't helping the engine or your wallet.

Last edited by grannyknot; Thu, Jan-11-2018 at 08:02:07 PM.
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Old Thu, Jan-11-2018, 09:21:24 PM   #12
Toxic0n
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Default Re: Oil change before or after car sits for awhile?

Quote:
Originally Posted by grannyknot View Post
Drain it before you deploy, put a note taped to the steering wheel that says "NO OIL, DO NOT START"
When you get back crack open your fresh oil and fill, Fresh oil sitting in an oil pan for six months isn't helping the engine or your wallet.
Wouldn't sitting for months with no oil introduce corrosion internally to areas that are normally lubricated?
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Old Thu, Jan-11-2018, 09:46:38 PM   #13
2006E46M3fan
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Default Re: Oil change before or after car sits for awhile?

Here's a thread where I asked the same thing recently:
http://www.m3forum.net/m3forum/showthread.php?t=593426
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Old Thu, Jan-11-2018, 10:46:41 PM   #14
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Default Re: Oil change before or after car sits for awhile?

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Originally Posted by Toxic0n View Post
Wouldn't sitting for months with no oil introduce corrosion internally to areas that are normally lubricated?
True, if somehow there's moisture inside that will promote corrosion.



To me it really doesn't matter, both before and after have their points.


Before, since you wouldn't want any dirty oil settling down might as well store it with fresh oil like storing a gallon of oil in your garage.


after, if it's good enough to run this engine that goes to 8k+ rpm then it should be good enough to sit there.


Thing is you don't want the oil to be really really old.





I think fuel is more of an issue than the oil.
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Old Fri, Jan-12-2018, 12:47:28 AM   #15
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Default Re: Oil change before or after car sits for awhile?

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Wouldn't sitting for months with no oil introduce corrosion internally to areas that are normally lubricated?
No, your 5-6 liters of oil (clean or dirty) are completely covered by the windage baffles that are cast into the oil pan, if the engine isn't running that oil just sits there in the pan waiting for the engine to start, it won't make any difference to any of the engine parts whether that oil pan is empty of full. If moisture gets inside the engine having a pool of oil in the bottom of the pan still isn't going to help.
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Old Fri, Jan-12-2018, 02:46:19 AM   #16
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Default Re: Oil change before or after car sits for awhile?

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Originally Posted by grannyknot View Post
No, your 5-6 liters of oil (clean or dirty) are completely covered by the windage baffles that are cast into the oil pan, if the engine isn't running that oil just sits there in the pan waiting for the engine to start, it won't make any difference to any of the engine parts whether that oil pan is empty of full. If moisture gets inside the engine having a pool of oil in the bottom of the pan still isn't going to help.
Precisely! You can put gold into your oil pan, but if the car just sits, and you don't start it, there won't be any oil (or gold in this case) circulating through the head or any other components, since the oil pump is mechanically driven via a chain off the crank sprocket.

Same discussion in the thread 2006E46M3fan posted.
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Old Fri, Jan-12-2018, 03:09:40 PM   #17
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Default Re: Oil change before or after car sits for awhile?

I would do an oil change after. If you are worried about the fuel, throw in some fuel stabilizer according to the amount of time you are gone and then also let the car sit on a tender. Then you are golden
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Old Sat, Jan-13-2018, 02:20:03 AM   #18
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Default Re: Oil change before or after car sits for awhile?

After has worked well for me, been winter storing my cars for 2 decades.
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Old Sat, Jan-13-2018, 02:36:55 AM   #19
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Default Re: Oil change before or after car sits for awhile?

It's either man-made or it's been sitting in the Earth for billions of years.. it's not perishable guys. And you don't have a vortex of dirt swirling around in there either - that is what a filter is for. Letting it sit for a few months won't hurt anything, including the oil's feelings.
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Old Sun, Jan-14-2018, 01:43:41 AM   #20
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Default Re: Oil change before or after car sits for awhile?

No need to replace oil donít go bad based on time.


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Discussing Oil change before or after car sits for awhile? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)