I use a Mityvac super, holds 2.3 gals of oil. I travel around to much to be able to haul around ramps and oil pan. Not about to pay the price of changing the oil that some of these places won't. Three oil changes and I've pretty much have the vaccum paid for. I've used the vaccum thru the dip stick 3 different times. Haven't had a problem. Oil is self contained, no mess. You just need a place to dispose of it. I took mine to WAL-Mart and they took it free of charge. I like mine for these reasons.

http://cgi.ebay.com/ebaymotors/MityV...spagenameZWDVW