This sucked 8.5 quarts of synthetic oil in 7 minutes on my 2001 Mercedes Benz C320. The stealership uses the suction method to change my oil for 140 dollars; oil and filter included. I did it for a total of 80 dollars with this unit. Everything is topside including the oil filter so I don't have to go under the car.

The intake hose was slim enough to fit in the dipstick shaft and long enough to touch the bottom of the oil pan. I ran my engine for 10 minutes to get the oil warm. Warm, enough to touch. Not too hot because I didn't want to melt the hose and seals. I let the car sit for another 10 minutes so all the oil would settle at the pan. I took out the filter, unscrewed the oil cap, inserted the hoses and turned this sucker on. It did its thing. The unit vibrates along with the out take hose so I needed one hand to control the hose. The wire clips for the batteries are small but I was able to find a place to clamp at the terminals.

I store this by keeping it primed with clean oil. I have an extra bottle of cheap engine oil and I ran the machine on it to flush the ugly oil out. While its sucking the clean oil, I quickly turn it off, pull out the hoses, and cap the ports making sure the clean oil stays inside the unit so that its ready and primed for next use.

It does it's job. For now... I'm not sure how synthetic oils affect seals. Hopefully it still works again. I'll see in 7000k miles.
Even if it were to break on me, I would still be saving money by ordering a new one.

Worked extremely well! I ran the engine to operating temp, shutoff the motor, and fed the suction line down dipstick tube. The pump Sucked four quarts from the pan in about five minutes. I can't believe I screwed around with manual pumps before... Time I'll never get back!

The following day I had to suck a quart of ambient temperature oil from my filter canister and, even with the engine cold and the oil at ambient temperature (80 deg F) the pump Sucked the oil right out.

Great value here! No priming necessary. (Project is a vintage ski boat with a Ford 352 FE engine).

I used this oil changer on my 2013 VXR Yamaha Waverunner on the first 10 hour oil change. It performed as advertised, I followed the manufacture instructions and it perform great. I improved the operation of the intake tube by cutting the end to a 90 degree angle with a razor blade. This gives the hose a larger suction opening vs. the flat surface. In my opinion this would also prevent the pump from cavitation. The quick disconnect & caps on the intake and exhaust are money. For the price I would definitely recommend vs a hand operated pump. The only issue is that it comes with cheap battery clamps which don't fit well on a car battery posts, they are intended for use on the marine battery (which the battery posts are smaller). Another recommendation to ensure the exhaust tube is well inserted in the container to capture the old oil. The vibration will loosen the tube causing oil to go everywhere if you are not careful.

Mi Dos Centavos.

I used this to change the oil on my SUV. The pump works fast and there are nice touches on the device like the caps on both the intake and output nozzles to prevent leakage during storage . You can't get the hoses hooked up the wrong way and there's a nice arrow on the device showing the direction of flow. The only criticism is the both the intake and output hoses could be 6" longer. I couldn't tell if the intake hose was reaching the bottom of the oil pan and I stuffed the hose as deep as I could down the dip stick tube. I also had to put my oil catch can on a short stool to make sure that the hose didn't slip out. Make the hoses longer and this is an easy 5 stars.

I changed the oil in my Smart car in around 10 minutes"¦"¦.. really.

I parked the Smart in the garage flat. No ramps just normal. Inserted the oil pump hose down the dip stick tube. Put the out side of the pump in a used oil container. Turned on the pump. Oil was pumped into the old container in less than 4 minutes. It's only 3.5 qt. Reached under the motor spun off the filter by hand. Replaced the filter added the fresh oil and it's done. The old oil went right into the container so no having to use a catch pan and any wrenches of any kind was super cool.

Did I leave any oil in the engine? Can't be much as I removed the same amount as I put in. Either way I changed the oil and stayed clean too. Noisy? I didn't think it was bad.