Suction Oil Change

[jyl]

I’m changing the W124’s oil, while I lay on the couch. This has been my pampered life ever since I got a suction oil changer. No more jacking the car up, crawling on the ground like a subhuman, getting hot oil down my arm. Just pull the dipstick, feed the tube in, and go lay on the couch. Of course, it helps to have a car where the oil filter is changed from above :-)

[Bill Douglas]

I've never heard of that before. sounds excellent!

I sure could have used one years ago when I changed the oil on an ATV Quad bike. The sump plug was so corroded and rounded off I tipped the ATV upside down to get the oil out.

[flatbutt]

https://www.amazon.ca/Flo-09644-Fluid-Extraction-System/dp/B00GZKRI3G

Hmmm for a motorcycle too...maybe. I've stripped too many drain plugs so this may be nice to use. Although I'd still need to check the magnet periodically.

[fanaudical]

Which one do you have, John? I need to pick one up for my wife's Q3. (Did the oil change last year with a hand pump - what a PITA...).

[jyl]

I got one that is steel. “Top Sider” https://m.northerntool.com/shop/tools/product_390306_390306

You do have to pump the built-in pump to build the suction, which is easier than pumping up a bike tire, then put the tube in and walk away. I was swayed by it being old school steel. If I were to do it again, I might get one of the electric ones. More couch time!

[908/930]

Those are frequently used on boats with inboard engines, just hard to get all the oil out.

[Scott Douglas]

My son gave me one of these: https://www.amazon.com/Mityvac-7201-Fluid-Evacuator-Plus/dp/B0002SR7TC/ref=asc_df_B0002SR7TC/?tag=hyprod-20&linkCode=df0&hvadid=312104220456&hvpos=&hvnetw=g&hvrand=10309953910587052786&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031561&hvtargid=pla-569065623780&psc=1

I used his to change the trans fluid on my Honda, but have yet to use it on the crankcase oil change. I still have to get under the car to change the filter. Mine is still sitting in the box unopened.

[A930Rocket]

I have a friend that does all of his with a pump. I still do mine the old-fashioned way.

[Tervuren]

This is the normal way to do it on a 5.0L Jaguar XK(R).

Engine was designed for it.

I would be a little concerned about doing it this way all the time on an engine that wasn't.
What concentrates might be building up down there?

[jyl]

During my education at the University of Youtube, I learned that on the W124, enough oil is left in the pan when drained the normal way, that the suction method isn’t much different.

[fanaudical]

Thanks - the "Topsider" is actually the one I was looking at!

[Tervuren]

I 'spose that is what an oil filter is for.

Originally Posted by jyl

During my education at the University of Youtube, I learned that on the W124, enough oil is left in the pan when drained the normal way, that the suction method isn’t much different.

[Norm K]

Originally Posted by 908/930

Those are frequently used on boats with inboard engines, just hard to get all the oil out.

That was my concern.

I bought one for use on the boat and Waverunners then figured, what the heck, I'll try it on one of the cars. Knowing what I typically get out of the drain plug, I'd say that any amount the Topsider left behind was negligible - likely measured in teaspoons.

_

[Chocaholic]

You may not want to lay on the couch too long. As I recall, the W124 holds 6-ish quarts. Not sure how much your pump holds, but you may want to double check.

[vonsmog]

I have a air operated pump I pulled from a paint spray gun cleaner someone gave me. I place the hose right over the dipstick tube on my Mercedes W123's and it sucks all the oil out in less than a minute. You get more oil out this way than you do pulling the drain plug. And having the oil filter changed from up top. No need to jack up the car!

[jyl]

Originally Posted by Chocaholic

You may not want to lay on the couch too long. As I recall, the W124 holds 6-ish quarts. Not sure how much your pump holds, but you may want to double check.

It holds a ton of oil. 7.5 qt! The Topsider will hold all that and more.

This is so convenient that I'd consider installing a remote oil filter if the stock one isn't accessible from above.

It does take quite a while for the suction to extract all the oil. More couch time! No honey, I can't do the dishes, can't you see I'm changing the oil?

[p911dad]

I wish I could do that with the 911, but not recommended because of the complication of the oil tank and separate crankcase drain.

[Chocaholic]

Originally Posted by jyl

It holds a ton of oil. 7.5 qt! The Topsider will hold all that and more.

This is so convenient that I'd consider installing a remote oil filter if the stock one isn't accessible from above.

It does take quite a while for the suction to extract all the oil. More couch time! No honey, I can't do the dishes, can't you see I'm changing the oil?

Which W124 do you have? I have a 95 E320 Cab (A124) as my daily driver.

[techman1]

The extraction has another plus.

You can get the oil really hot, and suck it out with minimal chance of getting burnt.

This is also a bonus, as suspended particles come out before they have a chance to settle .

[911 Rod]

With my luck the tube would get stuck in the filler tube.