Good to the last drop
 

I thought I would try this experiment.
I had the engine up to temperature and decided to drain the oil.
I pulled the plug and out it flowed.
I waited for about 15 minutes to let it drip slowly.

I then pulled the big drain pan out of the way and used a 16oz plastic cup.
I let the X5 drip all night.

I think I might have gotten 1 to 2 ounces more oil out.
Had the experiment gotten 6 to 12 ounces more oil, I might
Do this every oil change.

So, my experiment showed that 12 hour overnight doesn't result in
very much more oil drained.

Good to know - you just saved us all half a day! :thumbup:

Good to know...I will feel less guilty about a quick oil change now. :D

If you have an air compressor, you can speed things up a bit by sticking the air hose in the oil fill hole and sealing it up with a shop rag.

Maybe keep a big piece of cardboard underneath as there might be a bit of splatter.

Flush it with new oil at the end
 

Other approaches
Add a 1/2 Litre/Qt after the dripping slows down to flush the remains out. Wait 5 mins and put the drain plug back in. Clean now.:D

This is similar to what I do.

I hot drain the oil for around 10 mins, add a clean Qt of oil (to "push" the used oil out of the pan), then let it sit overnight.

Dealer sourced filters ONLY!

TiAg, why dealer sourced only?

I've used Mahle and Knecht with no problems?

Dealer sourced filter is more important with spin-ons. You guys are making way to big a deal of draining your oil! I am pretty high on the OCD scale but even I don'y worry about draining every drop.

On the diesel, MANN are the manufacturers of the OEM part for BMW so I only use MANN, some tell me Crossfield are just as good but I will only buy MANN. I would not go to a stealer in the UK as they are ridiculous on price and sadly there is not a decent BMW dealer for miles. Shocking really as I live in a part of London where everyone has a BMW.

MANN is an excellent filter for the BMWs

All OEM filters are not created equal.

I get my filters from the BMW dealer to ensure the OEM manufacturer has produced the filter to BMWs design/materials/processes/tolerances, in an ISO certified facility.

Filters produced by the OEM manufacturer for "open market" distribution (non-dealer network) have no oversite by BMW, this allows for filters produced in non-ISO locations, and with no requirement to follow the BMW design/materials/processes/tolerances (OEM manufacturer is free to "cost cut" the filter production as they see fit).

And there are full blow counterfeit filters on the open market too......

https://www.youtube.com/watch?v=U53yl4zQFV0