Please recommend good

From what all I have ever understood of the dip tube systems they don't get all of the old oil out and they are much slower than the pan plugs as well.

For me the pan plug has a purpose and it also gives me a better indication of my engines health. I have pan plugs with magnets in them and if I was to ever find metal shavings on one it would tell me something is wrong with my engine.

Thanks, TCM...

Some to products I reviewed make claims that just as much is removed; and some say that even more .... I also leaned that certain German made cars actually provide for vacuuming (in dealer shops and otherwise) by mounting spin-on filters readily accessible at the top of the engine -- no jacking, no crawling, ...even no clothing change.

I have on occasion had used oil analyzed (triple A) to evaluate engine wear--sometimes particles are simply to small to be seen by naked eye; but havent seen many oil pan plugs with magnets. However, most tranny (gear box) plugs seem to have magnet and I always check that.

Back to getting all the oil out, I would suppose that electric systems would work best (I assume they work on constanct pressure and not just siphon transfer action), but those I've found are way out of my price range. They appear to be priced for commercial shop as opposed to owner shop application.

For all viewers--

For me it would seem the best features would revolve around things like:

How durable under hot conditions?

How easy to set up and use?

Manufacturing quality... for long life and reliablity.

Versatility: can it be used for numerous applications? Easy to clean? Manual or powered? Things like that. As I said, hard to tell from user comments often contradictory; sometimes using incorrectly.

Check a marine supply store. Dip stick pumps are used on inboard engines in boats. The engines are mounted low in the hull of the boat, making it very difficult to get to the drain plug and/or place an oil catch basin.

There used to be a time when small fishing boats would drain the oil directly into the bilge of the boat and pump it overboard. I hope no one does that anymore.

An excellent suggestion, ronseto.

The "marine" pumps/siphoners did come up in my searches but not always easy to tell when usable for other applications (except when it says applicable exclusively to marine...). But, since there is a boat sales outlet not too far from me (hopefully having parts and service, too), and since the pumps do not seem very plentiful at usual brick and mortar stores, certainly someone at a marine store will have first-hand knowledge -- perhaps even actual wares to examine. Again, thanks for pointing me in a good direction.

One of the most common types of mechanical pumps used to empty engine sumps, on both smaller and "larger" engines (high seed up to say 1500kW), are semi rotary hand pumps.

By far the majority of manufacturers of marine diesels use these.........they even use them for emergency bilge pumps as well.

Talking from experience (I kept a ships motor boat afloat for four hours. It had a hole in it after a collision with another vessel. We were using it as a rescue boat to pick up survivors of the sunken vessel. We had a "tingle" over the hole and it slowed the water flow down.....still a bit hairy though), I would thoroughly recommend a semi rotary hand pump.

Thanks. Obviously one can know a thing without owning a thing: so I didn't mean to be so restrictive ... even hearsay will do if well informed. Anyway, thanks for the link, which I will check after responding to other posts.

Okay, I looked it the seen-on-TV-guys product. One potential benefits stand out: price; but too-low prices can be risky as well as too high, and this one seems too low. Other "features" that are not actually featured in the advertisement - or which are and should not be - cause me to pause.

I try to be on alert for information that just seems to be missing, whether in writing or pictured. I this case, the full length of the pictured tube (seems very good and reinforced) is cleverly concealed; to the question is how much additional tubing might need to be purchased...and for how much. As for the pickup tube, it appears not to be pictured, or described in specific term at all!

It's motor actuated, which could be a good thing, especially for speed and thoroughness of vacuuming; but one wonders just as much power could be developed from 12VDC battery source (I sometimes use a battery connected pump to inflate a flat, and it takes quite a while forcing air...how more more time to lift oil!

Finally - and this seems to be the clincher - it states that the pump interfaces with 12VDC convenience/cigar-lighter outlet of the car... but seems to evade the issue of what(?) car; or whether or not provision is made for direct connection to battery...either case which could entail a second power source (lest the onboard battery be overdischarged). Seems to me that just when you would want the engine running (to prevent battery discharge), is just when you would want the engine off, (while draining oil) to minimize engine damage....

If only an ac adapter ....! Or, better still, an ac pump (after all, how many of us change their own oil by the side of the road; or even in the parking lot of the auto parts store?