Oil Extractor Opinion

[xlr8nflorida]

I'm going to start a new thread so we can get an active discussion going.

I am looking at purchasing an oil extractor, particuarily this one: http://www.sjdiscounttools.com/mit7201.html although one that works off battery power would be nice too.

I like that specific version because it can work manually through the hand pump or automatically with a compressor. I don't have an air compressor but I do have a small air tank for pumping up tires. Not sure if that would suffice or not?

It would make our oil changes a snap especially since our filter is on top. I know the traditional methods however I don't keep my 3 Corvettes in the same spot and they do completely different mileage. I don't want to lug alot of **** around nor do I have a ton of space to store all this ****.

My ZR-1 does very little mileage anyway compared to my other cars. Would you use the oil extractor on a high mileage oil change, lightly used oil change etc? TomTom says he gets 9 quarts out with his which is excellent. At a regular garage, you would not get that unless they let your car sit on the lift for several hours.

I know there is talk of sludge in the pan etc and you won't get all the oil out but Tom says he gets the full 9 quarts out. These extractors have been used in boats forever because alot of times there is no choice. You don't see any ill effects from that and marine engines are run alot harder then a car engine. Also, I think sludge is from abusing your car and not doing regular maintenance particularily with the older style oils and extended oil intervals.

Upon review, I'm thinking its about as good as a regular oil change especially if you change your oil frequently.

It seems Mercedes changes all of their oil this way. Also other cars like BWM are removing their oil tubes completely.

Thoughts?

Also just for the sake of being bored. I know there is no easy way to get the 3 quarts in the oil cooler. If you really want to get it, you would have to do back to back oil changes. Does anyone know the minimum oil an LT-5 can run on without doing damage and how long it takes the oil cooler to start flowing oil? I was thinking I could add a few quarts, run it for a minute or too and then drain it again but I don't think it works that way.
I guess I'd just have to add 9 quarts and then drop it which seems like a waste of oil but I guess its what you have to do if you are picky and OCD like me