My dad took our used motor oil in gallon containers to Autozone who recycles it. So my quiestion is, is it as good as new motor oil and why would someone use recycled motor oil instead of new oil other than saving the enviroment. I woudn't use it though.

Y is a crooked letter mate. Anyone dumb enough to use engine oil that has allready been used should be shot. And the stalk that brought them to thier parents all those years ago should be shot for smuggling dope.

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Well, Let's re-hash this stuff.

Back in 1969, I had a '62 Grand Prix, that was a notorious oil slurper. This was back in the days of straight weight oil, no multi-viscosity crap back then.

Gas was $0.239/gallon, down as low as $0.199 during gas wars (which was every other day back then), and I was earning $1.10/hour as a Ice-cream scooter driver (3 wheeled Cushman scooter- kick start, 3 speed manual hand shift, foot pedals).

When I used to put gas in the '62 pig, It was always fill it up with oil, and check the gas.
Usually $2.00 to get half a tank, I always bought 2 quarts of re-refined motor oil. It was listed as 25W. It was solient green in color, but it looked clean. The cost was somewhere around $0.25/quart, much cheaper than the $0.50/quart for the new 30W in a can. The re-refined stuff was bulk, had to pump it out of a tank with a hand pump.

That crap kept my old jalopy running for damn near a year.
It was still running fine when I sold it, it just had a slight problem with one of the valve studs popping out of the head. I used to weekly remove the valve cover, and hammer the stud back in. Good for 2 quarts of oil, and 8 gallons of gas. The car got about 10mpg. (389/4bbl/4 spd - first year of the fully synchronised T10 Rock crusher - had a 3-2bbl setup in the trunk. Couldn't afford to gas the pig up)

Are you asking if someone would put used oil into their engine?

Oil that is turned in for recycling is usually refined and used for industrial purposes like lubricating oil or burned for energy. It also takes less energy to refine used oil than to refine crude oil

Matthew

http://www.recycleoil.org/
http://earth911.org/recycling/used-mo ... es-of-recycled-motor-oil/

a better term might be that they reclaim it

I don't think you could reuse modern multiweights as a new batch of multiweight.

Recycled oils, as stated above, get reused as heating oil and other lubes where viscosity isn't quite as important. It's also why brake fluid, ATF and power steering can mix in. The result is a flamable mix, not a real oil. Infact, there are garage heaters designed to burn used motor oil. They have filters and exhaust catalysts to clean up the oil and the emissions. Before that, many garages just burned it...

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Are you calling me an oil-slurper?
I had a couple of bombs back in the day that lived on a diet of bulk oil too. One was a Corvair van, what a piece of shit that was! One thing about an oil-burner or a bad leaker, you never have to change oil. They take care of that themselves!