Originally Posted by AlanAZ
Mike Miller recommends quarter-inch plastic tube to reach the bottom of the differential. If your oil extractor has three eighths-inch tubing, you may want to get a reducer and quarter-inch tubing.
And measure what you've pulled out. I could see by the measurement that I haven't gotten it all with the 3/8 tubing, and used 1/4 to get the rest.
I had tried that setup per Mike Miller's instructions, but just couldn't build enough suction. I will tighten up all the connections again and reduce the length of the tubes. See if that does it ...