Engine Oil Extraction / Suction pump - Advise pls

Discussion in 'General chat' started by bmwzoom, Jan 8, 2021.

  1. bmwzoom
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  2. Wynne71
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    My son in law and his father do a lot of servicing of cars. They have been using a suction type extraction for a few years, mainly as this increases the speed of the job, they don’t have to drop the undertray, wrestle with the sheared sump bolts etc. Both say this isn’t the best way for removing oil, there will always be some oil left in the sump, including possibly gunk etc.
    When I had my motorway hack Saab’s I looked into one of these, ended up continuing to jack up and do the job the old fashioned way.
    Probably fine for every second oil change, especially if you are doing changes more regularly than the schedule, but I wouldn’t be using this method for all changes.
    Just my thoughts after doing some research a few years back.
     
  3. The_Master
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    I have used a Pela extractor for years (10 or so) https://www.amazon.co.uk/Pela-6000-...d=1610111494&sprefix=pela+6000,aps,162&sr=8-1

    So much easier on my E60 as only really have a gravel drive to work and the m-sport body kit makes the front really low..
    I also use it on my wife's F25 and have used it on an E39 and E46.

    I think it does a great job and makes the whole oil change procedure quick and easy, the E60 has had 11 oil change in the 70k I have done since I have owned it using LL04 oil and buying a Mann filter I can do an oil change in 30 mins (probably less) and total cost is less than £30

    I usually wait until I have driven back from town (about a 5 mile trip) - the car is usually fully warm by then - oil flows much better then.
     
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    Last edited: Jan 8, 2021
  5. bmwzoom
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    Thanks for the replies,

    To be honest I think this is the way to go regarding DIY oil changes espically as the new fully synthectic oils (5/30 & 0/30) are thin even when cold compared to the old 20/50. In all the yrs I have been doing it the "old way" I have failed to see any sludge etc drain out into various clear containers used. All be it that all my cars do decent miles most days (100+) so therefore everything gets to the correct operationg temp & is obviously the reason my DPF's have always been problem free. Need to purchase a 9ltr unit as car holds aprox 7 ltrs. So if anyone has a 9ltr unit they can recommend I would be most grateful.

    Cheers

    Pete
     
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    Been using my Pela (14 litre from memory) for many years, both for my cars & the golf club machines when I worked there.

    When I first got it, I did a test on my old e34. I used the Pela until no more oil would come out, then removed the sump plug to see if any more appeared - about an eggcup came out so that was good enough for me. Given that I change the oil ridiculously more often than BMW recommend (and the filter too) it's perfect for the likes of me. It's quick, easy, efficient and I no longer have to lie in the ground (no garage:oops: ) with hot oil running up my arm.....:whistling: :thumright:
     
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  7. bmwzoom
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    Do you just place the extractor tube in as the same length as your original dipstick? Is that a sufficent depth to pull out all the oil?
     
  8. The_Master
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    Yes I just insert the tube in all the way it will go into the dipstick tube then pull it back a few mm, then it drains quickly just a few mins.
    I use the old empty oil bottles to measure what comes out - usually get 5.5 litres from my M47TU2 engine - 5.5 litres goes back and all good..
     
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    I push it all the way to the bottom, but have the end of the tube cut at a very slight 'angle' so that it doesn't seal off the suction - effectively the same as The Master ^^^
     
  10. a.s.uk
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    Same as what John said
    here...


    Sent from my iPhone using Tapatalk
     
  11. Alan Gunn
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    I have that exact one in your link works perfectly.
    Run the engine for 10 minutes push the pipe in all the way (with my e53 3.0d i have to pull it back just a tad).
    Oil is out in 3 minutes if that then i suck the last bit out of the filter housing with the extractor.
    When i very first used one of them after sucking the oil out i took the drain plug off and nothing came out.
     
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  12. Wynne71
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    I suppose it depends upon the frequency of oil changes, some of the cars my SIL deals with haven’t been serviced for ages, so there can be a build up of crud in the sump.
    My Saab experience also taught me that the old fashioned way was the best given that the petrol engines cars between ‘98 and ‘04 had issues with oil breather systems, causing a build up in the sump.
    I’d imagine the frequent changes with your cars wouldn’t negate this concern, and the fact BMWs have not suffered from this issue, to my knowledge at least.
     
  13. a.s.uk
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    Fully synthetic ( watery ) also oil helps...


    Sent from my iPhone using Tapatalk
     
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  14. Kenny
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    I have been doing it for 30 plus years in boats, you either suck it out the dip stick or drill a big hole in bottom of the boat. As said above you never get all the oil out and even running it until the oil is hot it takes for ever to suck it out. I would still stick the car on the ramp and do it right.
     
    Last edited: Jan 9, 2021
  15. Silverbeemer525
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    I don't have anywhere to put one. My G30 530i hasn't got a dipstick! I just have to trust it when the electronics tell me that it's always full.
     
  16. Kenny
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    Is there not a hidden one? On my X3 you can’t see the dip stick unless you take the engine cover off and even then it is tucked away at the back.
     
  17. Adie
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    Only on the diesels, no dipstick whatsoever on current petrol engines :(
     
  18. Postman
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    Just a note of caution ....

    I have a 2007 535d. Bought a Sealey 6.5 litre extraction thingy. I have only ever managed to get about half the oil out through the dipstick hole. Quite useful as my tray for catching oil via the sump plug is not big enough. I’ve done this now several times and result is always the same. Might be thicko here not using it properly but tbh I think there is something down the dipstick hole preventing the suction pipe getting to the bottom of the sump.
     
  19. Wynne71
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    I suspect that there maybe some cars that have baffles in the sump that may top the pipe fitting all the way to the bottom. Might be worth getting a picture of the sump to show what they are like.
     
  20. The_Master
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    It's possible although most garages now suck out the oil through the dipstick tube as it's quicker (no need to remove undertrays etc.) - was the oil nice and hot as it runs much better then?
     

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