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      07-27-2014, 02:57 PM   #1
Spedracer81
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Exclamation to suck or not to suck...

I'm about ready to do my 3rd oil change, I have bought the suction tool to suck oil from the dipstick, works great but I feel like I'm not getting it 100% empty. I bough the new drain plug and I just wonder if I'm being OCD by wanting to drain the oil from from under the car, my thinking is that I will get all the oil and whatever debris is in there...I'm I over thinking this?
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      07-27-2014, 03:08 PM   #2
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I get more oil out of it with my Mityvac than I do by draining...
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      07-27-2014, 03:10 PM   #3
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If you're going to replace the drain plug seems like a waste of time to suck.
What kind of drain plug?
I put in a magnetic Dimple plug (SS M12X1.5X12) from BavAuto.
I was surprised to see how much swarf came out the next change. Been clean since.
I don't know if it was just 100k miles worth of rings, or bits of my broken vanos exhaust hub.
Nice to know it's not in there any more.
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      07-27-2014, 03:50 PM   #4
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the past two times I sucked the oil out, I bought the oil change kit from Tisher, it comes with a new plug..I'm kinda curious to see whats stuck to the magnetic plug..at 50k should I continue to suck oil or drain?
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      07-27-2014, 05:47 PM   #5
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well I got bored and drained the oil, turns out it must have been done this way before b/c the plastic cap was missing, and BMW never replaced the drain bolt with a new one ( still hex OEM plug)
All and all, not bad I feel better about it knowing that I got 99% of the oil removed...on to the next project..
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      07-28-2014, 06:02 AM   #6
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I believe only M3's had the plastic cover over the oil drain bolt. My M Coupe didn't have one and TIS infers that prying off the cover is e46 only. I've got a mightyvac rig. I usually alternate between sucking and draining.
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      07-28-2014, 07:23 AM   #7
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Wasn't sure, I found a diy and it said remove cover, wasn't there..but I think I'm going to alternate between sucking and draining...wasn't too bad getting under there and draining..
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      07-30-2014, 12:48 PM   #8
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Quote:
Originally Posted by bignosejim View Post
I believe only M3's had the plastic cover over the oil drain bolt. My M Coupe didn't have one and TIS infers that prying off the cover is e46 only. I've got a mightyvac rig. I usually alternate between sucking and draining.
my 3.0i has a door under there, it catches oil fantastically and blows sh*t all over the floor!
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      07-30-2014, 07:15 PM   #9
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This plastic cover?
I have one.
It didn't have one when I bought it used.
I expect mechanics don't bother to put them back on.
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