Until now I have found that most funnels are useless for transferring used oil into 5 quart oil plastic oil bottles for disposal. Just bought a Flotool Super Quick Fill Funnel #10714, color is red, at Wal Mart; about $4.00. It is not only good for pouring clean oil into engines, it's good for pouring used oil into the 5 quart bottles without making a mess. The portion of the funnel that goes into an engine's oil cap or into a 5 quart used oil bottle is larger in diameter than typical funnels so the funnel won't tip over or backup. Try one!
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