Safety experts caution against the unsafe practice of siphoning petroleum by mouth, warning especially, that it can result in loss of life.
Beckson's answer is the patented "Siphon-Mate™" pump; a combination displacement lift pump and siphon pump with valves suitable for transferring fuel.
Pump to start flow. Fully extending the handle will allow siphoning provided that the source is in higher elevation than the receptacle. Lifts 4 oz. per stroke.
LENGTH: 11-1/2″ (28.4cm) DIAMETER: 1-1/4″ (32mm) LIFTS: 4 oz (.12 L) per stroke USE FOR: DIESEL – OIL – WATER Supplied with 8′ clear tubing to allow versatile application. Cut tubing for desired length of intake and discharge hose. This pump not intended for transfer of liquid over 120°F (49’°C)
"Warning - this product contains chemicals, including Di(2-ethylhexyl)phthalate, known to the State of California to cause cancer and birth defects or other reproductive harm - For more info go to www.P65Warnings.ca.gov"
www.P65Warnings.ca.gov