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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Oil Change?Views : 1179 Replies : 20Users Viewing This Thread : |
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Jul 18th, 2018, 18:31 | #1 |
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Oil Change?
I need to do my first oil change since having the XC90.
Having had plenty of mess over the years I aiming to make this a clean affair. Famous last words! I've not encountered the cartridge type filter before but looks to be a lot more sensible than the underneath designs of old. My question is about removal of the old oil. Should i opt for the usual sump plug approach, getting under car removing protection tray etc.... or removal via the dipstick tube? Does anyone do it the latter way? Any tips? (I have a pela extractor pump already which i use for a small boat engine) Thanks Nick |
Jul 18th, 2018, 19:03 | #2 | |
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Jul 18th, 2018, 23:14 | #3 |
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Sump.
Thing with suction is you dont know where the tube end is sitting. The sump plug is at the lowest (suitable) point. Also what engine, If D5, what year/euro is it? If pre '05, euro 3 dont use A5/B5 in it, it should have A3/B4, if its after 05, euro 4 then A5/B5 is specced, though you can also use A3/B4 too. You may know this, apologues for any egg-sucking tuition if so, but oil mistakes are rife on here with the early D5. If its petrol ignore me! Last edited by AndyV7o; Jul 18th, 2018 at 23:22. |
Jul 18th, 2018, 23:15 | #4 |
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I don't think you would get any more out via the dipstick hole, the sump plug drains just fine - especially if you have the car on a pair of ramps and hence the engine is tilted slightly (the sump plug is at the back).
If your precious about getting as much oil out as possible (like me) I drain the sump, replace the plug, start the engine and run at tickover for about 5 seconds, and then re-drain. You get another 1/4 litre out that way (there are some that will think this is dangerous but at tickover the forces on the bearings in the engine are probably 1/1000th of that at full load/3,500rpm - provided the engine is warm and has been run a few minutes before so everything is coated in oil - it's fine to do this).
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Jul 18th, 2018, 23:33 | #5 |
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The 1/4l of oil you may get out, is the oil contained in the bearings and oil pump etc, not a great idea to remove this. You do get this at start-up after a long rest, but the pump and feed galleries are primed ready to fill the gap. Running them dry will result in a further delay feeding oil to the now dry bearings. The crank and rods 'float' in a pressurised 'cushion' of oil, the boundary film of oil doesn't lubricate them very well.
Its probably equivalent to a handful of start-ups. Its only once every so often so not a big deal, but as most engine wear happens at start-up, its not a fantastic idea. If you change oil regularly the bit remaining will do far more good than removing it will. Last edited by AndyV7o; Jul 18th, 2018 at 23:38. |
Jul 19th, 2018, 10:06 | #6 | |
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Jul 19th, 2018, 10:55 | #7 |
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Me neither - I have my old Galaxy now 200,000+ miles and simply changed the oil every time the computer says! Engine still going strong - wish I could say the same for the body work hence the Volvo now being the family work horse; am hoping she will look a lot better than the Galaxy after 18 years. LOL!
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Jul 19th, 2018, 12:01 | #8 | |
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Jul 19th, 2018, 16:18 | #9 |
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No I'm an engineer and I understand the physics behind it. I've been doing it for years on over hundreds of engines without issue. The additional wear cause by a hot engine running at 750 rpm for a few seconds is zero.
I'm not recommending it but I'm sharing it as an idea, I have done before and many experienced forum members also do this....
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Jul 19th, 2018, 16:26 | #10 |
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