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I seem to remember this topic was discussed some while back, but I have unfortunately been unable to trace the thread. I wish to purchase one of these pumps to carry out my own oil changes, and would appreciate any advice on the best make to get.. Thanks
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I believe it is generally dismissed as being inferior to undoing the sump plug to carry out your own oil changes.
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I believe it is generally dismissed as being inferior to undoing the sump plug to carry out your own oil changes.
IIRC tell MB that.
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... but I have unfortunately been unable to trace the thread ..
many refences can easily found using the forum search (under your user name) for "oil extractor".
I believe it is generally dismissed as being inferior to undoing the sump plug to carry out your own oil changes.
i personally believe that
1. " it is generally quite wrongly, without any shred of evidence, dismissed being inferior to undoing the sump plug .... ", and
2. in fact much evidence to the contrary is conveniently ignored.
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i use a pela suction pump designed primarly for boats.use it on my mb and the lawn mower as far as i know all mb garages use them i find them excellent.
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1. " it is generally quite wrongly, without any shred of evidence, dismissed being inferior to undoing the sump plug .... ", and 2. in fact much evidence to the contrary is conveniently ignored.
1. But what about swarf and larger metal fragments swilling about in the lowest part of the sump where the plug is? Less likely to get them all with an extractor. And they are better out than in.
2. What would that be then?
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I believe it is generally dismissed as being inferior to undoing the sump plug to carry out your own oil changes. --
With the frequency that most on here recommend changing the oil, a small volume missed won't make any difference at all!
The amount missed by these pumps is minimal - especially where the dipstick tube co-incides with the lowest point in the sump.
Although this choice doesn't apply to me, if I had to chose between letting some {edited by DD} oik swing on my sump plug until the threads give, or, to allow the extractor device to slowly suck the oil out while I recline and drink tea, the fast fit places don't stand a chance (never mind the extortionate dealers!)
Number_Cruncher
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... I had to chose between letting some oik swing on my sump plug ...
number cruncher - you may find the underlined bit above is against site policy ?
www.honestjohn.co.uk/forum/post/index.htm?t=27804
www.honestjohn.co.uk/forum/post/index.htm?v=e&t=32...8
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You might be right Dalglish, but I suspect it's not for you to decide. {Correct, it's not for him to decide. I have nevertheless edited it though - DD}
Number_Cruncher
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SNIP - Smug and gloating reply removed. DD
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I believe it is generally dismissed as being inferior to undoing the sump plug to carry out your own oil changes. --
Assuming you have a sump plug.
Smart ForTwos don't (rectified on the new model).
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Pela is the well known make.
www.machinemart.co.uk/shop/search/filter/oil+extra...1
or the less complex and cheaper - suck it yourself
www.machinemart.co.uk/shop/search/filter/040215070...1
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There is an inferior site called autoexpress, if you can face the indignation to go there ;o)
click www.autoexpress.co.uk/products/products/203129/flu...l
I have one that looks like no.3 but under a different name and it was £44 delivered from ebay (there are lots on ebay).
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Thanks guys for your helpful replies, I think I`ll go for the Pela.
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Bit of a coincidence this coming up as I was just considering the same thing. Read all the contributions then ignored most and went to Machine Mart and bought the Pela 6500. Took me the best part of twenty minutes start to finish to do an oil change on a 2 ltr diesel. As for any swarf left in the sump, if a blast at 70 in third for ten minutes didn't stir it up, not sure what will.
keep your friends close......
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>>>>Took me the best part of twenty minutes start to finish to do an oil change on a 2 ltr diesel >>>>
That is excellent & did that include an oil filter change as well ??
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'fraid not, don't do filters on interims. But unscrewing a cannister and fitting new one would add seconds. Forgot to mention the cleanliness aspect too. Very tidy.
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cant see the point myself ? especially for diy use , if your that enthusiastic to change your own oil, you would be ignoring the interim , and changing the filter too? which on a high percantage of cars involves clambering underneath anyway ?
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It depends on your circumstances. My filter is an incineratable element, and on top of the engine. I can suck out the oil while I replace the filter in around 10 minutes. Then pour the old oil from the spout into my waste oil drum. I don't need so much as a tissue to wipe up mess, I clean the tubes by sucking up a bit of diesel. I reckon it costs me around £15 to do a fully synthetic oil and filter change and takes 15 minutes including setting up time. What more could you want? I don't miss ants in my clothes, oil up my sleeve, oil on the floor, dropping the sump plug in the oil and trying to get it out, trying to pour the oil from a washing-up bowl into a drum with a funnel and spending 10 mins cleaning all this afterwards.
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washing up bowl ? lol.
Its what I've always used too
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More progress imo.
Cant beat letting the old oil drain out while you have a cup of tea. Its not a race to change the oil.
The last of the oil that comes out is generally the thickest oldest gunge that you want out. Some cars you have to use the extraction method but in my book its only to be used when you cant undo the sump plug.
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When I use the suction device on my car and then take the sump plug out, not a drop of oil emerges.
(think i`m repeating myself, sorry :)
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I know, and what sort of well-maintained modern car has metal swarf and thick gunge coming out?
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Both of my cars have lowered suspension and covers under the engine. With no ramps or stands it is physically impossible now for me to do a DIY oil and filter change (interim) without my Pela extractor.
I assume the "correct" way of changing the oil is done at the regular dealer service.
For me this is good enough.
Steve
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If you let the oil drain in its own sweet time, it will cool and the last to come out will be cooler, hence more viscous - the "thickest oldest gunge"- as you describe it, unless you have a real fuel dilution problem, rather than the hot thin stuff. Of the engines that I have worked on regularly, many have pumps to evacuate the sumps, these include RRCV12, MTU 183 (Merc O444), Paxman Ventura and Valenta, Perkins 4.236, Foden FD. Same goes for some ZF gearboxes too. Get it fast and clean, while it is warm and runny!
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I have to assume you have never taken a sump off then.
Even after 24 hours with a sump off oil will still drip off parts. An oil extractor can get more oil out than gravity and sump bung. Absoloutely not.
Have drained oil and removed sump and extracted oil and removed sump. Draining DOES remove more oil imo.
But I agree, sometimes an extractor has to be used. IMO its very useful for those circumstances. But you do it my way and I will do it my way .
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What about the quartz dust in the atmosphere that gets in over 24 hrs with the sump plug out?
:)
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Is ok becuase i put an anti quartz dust cover over the engine in such circumstances. Don't you?
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I suppose a big `trap door` in the sump bottom would really do it, Could then get a hand in and rake the metal particles and big chunks out. :)
( Written with humour and good nature :)
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You don't have to assume anything. And I can't take a sump off and let it drain for 24 hrs just to do an oil change.
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One thing that does strike me in this debate is that the sort of people likely to bother buying one of these are probably the sort of people who will change their oil regularly. Theirs aren't going to be the engines full of old sludge, so perhaps they will do the job well enough.
V
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Yes, and lets face it, when an engine starts to deposit hard, shale like sludge on the oil screen or sump/engine internals, taking the sump plug out to drain won`t make any difference at all, when compared with an extractor.
IMHO. better regular changes with an extractor. I can do my oil and filter changes standing in front of the car thanks to the extractor.
Also no risk of getting any grit particles in or stripping the sump plug threads,
Regards
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