If you use a sucking device/vacuum to change your oil how much do you get out ? As people generally connect the tube to the top of the dipstick tube I'm wondering how far down it goes or do you use a very small diameter tube and push it right down the tube ?

Not sure what you were expecting to read here but sorry to those that were disappointed....

I have a marine oil extractor that works off vacuum and it uses a narrow tube and goes to the bottom of the sump, though it does take approx 15 minutes to extract 6 litres of oil. This is largely due to the viscosity of oil and narrow tube rather than the pump.

Haven't used it on the full fat though as it's too easy to pop in off road height and drop the oil from underneath and it drops more than the capacity of my particular pump😬

Pros for pumps are: conveniant, clean, ease of use and transferring into containers for disposal is simple.

Cons are: time, and the argument of not removing anywhere near the amount swarf from the sump that removing the sump plug achieves.

I have mitigated this in the past by installing a magnetic plug and dropping the oil on full services aposed to pumping the oil at the interim service if that makes sense? Lee

XR2i (1.6)
Peugeot 306 (1.4l)
Vauxhall Cavallier CDX (2.5 V6)
Renault Laguna (1.9D)
Vauxhall Vectra GSI (2.5 V6)
Mitsubishi GTO (3.0 twin turbo)😬
Porsche Boxter S (3.2 straight 6)
BMW 535D
VW Polo 1.4S (its all about the S)
BMW 330CI
FFRR Supercharged

Thanks for the contribution it's for intermediate changes between garage services, my old dad being a mechanical engineer told me that if you look after the oil then the engine will look after you, I took his advice and 30 years later I still do..

In my eyes the dipstick tube would stop as it enters the casing and not continue a down to the bottom so potentially leaving quite a bit in there, in that case I'll drain it but if it's a litre or less it will suffice till the next service. Time isn't a factor as I'd be quite happy watching it suck while drinking tea, rather that than crawling on the floor.

The oil tube on the 4.4tdv8 is designed specifically for using an oil extraction pump and will allow you to suck out virtually all the oil . G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

I didn't measure how much came out - but it went into 5l containers and filled one and quite a bit (I think more than half) in another. I added fresh oil and was careful no to overfill. The capacity should be 9l and I'm pretty sure I There wasn't much left of the 10l I purchased.

The suction tube is really quite narrow - much smaller dia than the dipstick tube and it continues to the bottom of the sump. The only problem, possibly, is that the pipe has a tendency to curl, so might come up again.

So long as the engine oil is pretty warm it pumps out quite quickly. It make an oil change quIce, easy and clean. That alone means I'm prepared to do it more often. Current: 2010 Range Rover L322
Vogue SE, TDV8 3.6, Bournville
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Now gone: 2002 Range Rover L322
Vogue, TD6, Giverney Green

Thanks, looks like question answered. Now come on opieoils where's my oil....

Be careful using that method on the 3.6 Steveball. They have two sump plugs, one directly under the turbo return that collects sludge, so needs to be removed at each change interval, especially with the turbo issues they "can"suffer.

Freddie, this is my home made vacuum device, old fridge compressor,PVC tubing (150 mm ID) 75 cm height which gives 13 L capacity. With this I can draw 0.8 bar vacuum and it will suck oil (9 L approximately) in around 2-3 minutes. I have used this to bleed brakes,flash coolant, etc, etc.. This setup cost Me around 45 E.

Love it... great to see someone engineering a solution.

9.5 litres on a 4.4 TDV8. My sucker gets virtually 100% of it via the dedicated suction port next to the filler cap. My sucker kit fits snuggly over the outlet hose and not down it:thumbsup: 405 AB exec seats Baltic and Cirrus
93 RR Classic efi

Remember it's easier to get forgiveness than permission!

Gone in order:
4.4 TDV8 SE - gone to a good home
93 Classic hard dash Plymouth Blue
03 L322 Oslo Blue
2000 Disco TD5 ES Epsom Green
98 P38 Rioja Red
89 Classic Cairngorm Brown

diesel Dave wrote:

Be careful using that method on the 3.6 Steveball. They have two sump plugs, one directly under the turbo return that collects sludge, so needs to be removed at each change interval, especially with the turbo issues they "can"suffer.