How much oil are we talking? a few 100ml?For a while I was sceptical of them. Then I used one to remove the oil, followed by removing the sump plug to get the last of the oil out. I did this a good few times. What came out of the drain hole was always insignificant so I'm quite happy to use an extractor now.
Add in the reduced mess and time saved and it all good!
Only little thing is that you don't need to get under the car anymore, so you miss the opportunity to have a general quick look at things under there. Not a problem if you look after you car anyway.
If you change your oil hot as you are suppose to the "sludge" (should not be there anyway) would likely be in suspension with the oil. If you did the drain way every 4th time that would remove it anyway. I could see how sucking the oil out may actually get more crud (should not be there) than a drain would.Any residual sludge or other bits that might remain where normal change would flush out?
I have one, however, takes way too long to just suck all the oil out. Rather just drain it from the bottom and ensure all the oil and particles are out.Does anyone have experience with using an Oil Extractor rather than doing a change up on ramps the conventional way?
All opinions welcomed?
I would be really curious why he says it does not stay in suspension. It may explain something else that I am working on that is not working the way I anticipated.Two analogies I am thinking of are a snow globe. You shake it and the little bits float around a long time then sink. Lava lamp where heat raises the bloob in the oil . I guess you would need to know if the sludge expands more than the oil, yup pretty sure I don't know that.ouich@ Sailor24 In my experience I would have thought it would remain in suspension also, but speaking to an engineer at work he thought the opposite and hence asking for real world opinions.
Some sludge could possibly be attached to parts of the motor or trapped in smaller passages and a good flushing of the engine with ATF or other engine flushing agents can get them loose. Either methods mentioned here can't really do anything about that. I used to flush my other car regularly before an oil change. Does anyone do that in their S62? I'm worried about seals getting damaged.I would be really curious why he says it does not stay in suspension. It may explain something else that I am working on that is not working the way I anticipated.Two analogies I am thinking of are a snow globe. You shake it and the little bits float around a long time then sink. Lava lamp where heat raises the bloob in the oil . I guess you would need to know if the sludge expands more than the oil, yup pretty sure I don't know that.ouich
I mentioned it a few posts up. I do it every 30k miles. Pour in 1qt 200mi or so before an oil change and use an extractor to change the oil when it's hot.Some sludge could possibly be attached to parts of the motor or trapped in smaller passages and a good flushing of the engine with ATF or other engine flushing agents can get them loose. Either methods mentioned here can't really do anything about that. I used to flush my other car regularly before an oil change. Does anyone do that in their S62? I'm worried about seals getting damaged.
ATF or a cleaner ? If cleaner which one? I have way to much colour shortly after an oil change. I was going to use ATF but am a bit concerned that it is about a 10 weight oil maybe even less. It flows up here in the cold when no other will, maybe that is a good thing don't know.I do it every 30k miles. Pour in 1qt 200mi
ATF or a cleaner ? If cleaner which one? I have way to much colour shortly after an oil change. I was going to use ATF but am a bit concerned that it is about a 10 weight oil maybe even less. It flows up here in the cold when no other will, maybe that is a good thing don't know.