So you just pull up in front of McDonald's and pump out their grease?

OH NO, not McDonald's. Their grease is NASTY and if you don’t believe us, go check out their grease dumpster some time. Their stuff is as bad for your vehicle as is for your body and the environment. American food places are the worst, really. Not only do they keep frying in their grease for as long as they can, they dump all the crap they scrape off the grills into the dumpster as well and all of the animal grease makes the dumpster congeal and rancid. YUCK.
Independent Asian restaurants are the best. While traveling the pump & run method has proven to work the best. A lot of restaurant owners don't speak English or are just so confused by your request for their dirty oil that they say "no" just so they don’t have to deal with it. Sometimes it is easier to ask forgiveness than permission and really, you're taking trash so it should be no problem. Once we had a problem getting grease because the last guy who got grease made a big mess in the restaurant's lot. So please be clean and curteous! We usually ride our bikes around towns we get into at dusk and then pump either that night or the next morning. With our system we just stick a hose into the grease dumpster and flip a switch. The pump itself has metal filters that don't let junk through and when they start to clog, we hit the switch to go the other way and it flushes the dirt right back into the dumpster. We only have to change our one filter by the engine every 700-1000 miles and they're only $10 a filter.