The pump does what it says but with a big delay. That is, with the car slightly warmed up so the oil isn't cold, it pumps out 1.5 liters of oil in 25 minutes, as measured, so you understand that it takes a lot of time to drain it all. My engine takes 3.5 liters of oil. Would I buy it again? Probably not, because of the time it takes.

The pump failed immediately upon connecting it to power. The motor did not even turn on. It just started smoking.
I’ve used a similar one before with no issues and know how to connect the terminals correctly.
Maybe I was unlucky, but this was a waste of money and I used a manual pump instead - slow but it worked.

Very good
I had to remove some oil because I went to a workshop - definitely a shady one - for an intermediate oil change (I do it every 7-8000 on a diesel car, by myself) and I bring my own oil and filter, and while it took 4.5 as I indicated, they insisted and put in 5 liters! Fortunately, I checked it the next day right away and thus saved the engine from serious damage - it would have blown the seals apart and the labor costs would have been extremely high
So the intermediate will now be done with the engine
It took about a minute to collect the approximately 600g that is shown in the photo (1.5lt bottle)
It would be good for the oils to be a little warm during use - to come out easily
I highly recommend it
It's worth the money and then some

Perfect and fast oil change... The tubes are sensitive to high temperatures and get damaged... It's better to wait until the oil reaches 40-50 degrees so we don't have this issue... I mean, not when the oil is burning...

I got it for changing oil for a vehicle that I use strictly for work! It did its job perfectly!! Place the suction tube in the right spot so it can draw out every car differs, you don't need to insert the whole tube, play around a bit until you find the spot, because I know the amount of oil this specific car needs, I can tell that it sucked out almost all of it! I used it with an external battery!

Before you buy it, check if a small tube can reach the bottom point of the Carter. If it's okay, then with enough noise it will pull the old oil slowly and painfully. Anyway, it won't pull everything and the old good way with a drain pan is better and recommended. It helps me collect the most and then drain the motor after a night. Note that after use, drain the tubes so as not to block the pump. It also works for oil transfer. It heats up quite a bit, the only drawback.