I would be comfortable using re-refined oil in my 2003 Dodge (2.5L 4-cylinder engine, 5-qt. sump, no turbocharger) on a 3K mile / 5K km OCI, but not in my 2001 VW Passat (1.8T engine, 4-qt. sump, turbocharged, engine infamous for sludge, even though mine hasn't had a problem yet).
How good is recycled dino oil???
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Part of the reason recyled oil has a bad name with some people is that years ago the recyling process in some shaddy operations was to run the stuff through a few layers of old discarded mattresses and bottle whatever came out.
Modern name brand motor oil recyling operations which output a certified product should not be any problem to use. The biggest problem for an individual using the stuff is trying to find it, at least in the US.
It sure would be interesting to see a detailed technical presentation on how Unocal or Safety Kleen go about the process.
John
Modern name brand motor oil recyling operations which output a certified product should not be any problem to use. The biggest problem for an individual using the stuff is trying to find it, at least in the US.
It sure would be interesting to see a detailed technical presentation on how Unocal or Safety Kleen go about the process.
John
LOL!
there seems to be a positive and negative attitude twards re-refined oil. Some say they would use it, or clearly state that it would be fine. other say they whouldn't use it in there lawnmower
it sounds like a briliant idea. and it seem it has some good support from car companies and cities around the country.
it sounds like a briliant idea. and it seem it has some good support from car companies and cities around the country.
What colour is this stuff when you pour it out of the bottle? I bought some dirt cheap autolab 15w40 that I'm betting is recycled considering the price. It also looks like Castrol has gone up 4 bucks a jug in Canada...otherwise I would have been using Castrol 10w40.
Steve
Steve
I am sure as we speak here, the big guys (PZ, QS, Valvo, Castrol, etc) are already using recycled oil to feed in their base stock, or refinery is dumping used oil into their crude oil feedline so they went through the same process. If it works better but don't have a name, why risk telling your customer? Afterall 0.5% recycled oil is not really recycled is it?
If I could find re-refined oil with a major brand name on it, I would prefer to use it over refined crude. Over the years, I have heard that re-refind oil has an advantage. It is the oil that has already survived being in an engine before. All other things being equal, it can't help but be better, but could easily be made worse.
Most used engine oil is either blended into heavy fuel oil to give the desired specific gravity and viscosity needed for the fuel, or cooked into road paving asphalt.
Used oil molecules have been oxidized. They are "worn out." Hydrotreating reverses the oxidation. If the used oil is hydrotreated and additized to the best quality, great. If it is processed to the lowest quality possible to meet ILSAC and API specs, then it is just another cheap oil.
Ken
Used oil molecules have been oxidized. They are "worn out." Hydrotreating reverses the oxidation. If the used oil is hydrotreated and additized to the best quality, great. If it is processed to the lowest quality possible to meet ILSAC and API specs, then it is just another cheap oil.
Ken
I'm quite certain that recycled oil is perfectly fine to use in someone else's engine.
When I was doing Semi-End dump work...I hauled broken chipped glass that came from recycling used bottles. The big glass companys were buying this recycled glass in lot's of in excess of a million tons each month. The Feds would give the companys huge tax incentives to mix the old in with the new......
Hummmmnnnn. This is making since.
Citgo used to make it back in the 80's. I used to see it on store shelves at 7/11 convenient stores. Just let me say this: It was the most awful smelling stuff I have ever smelled period. Would I ever use it you ask ? Let me put it to you this way: I would rather use Pennzoil, before I used any recycled oil. Yuk! Nasty stuff!
i guess i wouldn't mind using Recycled oil in something that isn't of great importance.
but i'd have to run a UOA and find out what its doing inside my engine.
but i'd have to run a UOA and find out what its doing inside my engine.
Plus price would be something to factor in as well.
I'm not gonna pay the same price for recycled oil, as the regular oil
and GoldenRod, i understand that you don't like Pennzoil....ok fine, but you don't have to bash it all the time. I may not be a big fan of it either, but I don't go around constantly bashing it, especially after i've read all these posts where people have had excellent results with it.
If you don't have anything useful to say about it, just don't say anything at all.
and Seeing how its now made by Shell which makes many good oils including Rotella....i wouldn't be the least bit shy of running anything from the shell formula to q-state and Pennzoil....i just don't care for the pricing.
and with the oil smell.....i'd sure hope it doesn't smell too good, it is from the dead carcasses of dinosaurs......that have been in the ground for a million years.
I'm not gonna pay the same price for recycled oil, as the regular oil
and GoldenRod, i understand that you don't like Pennzoil....ok fine, but you don't have to bash it all the time. I may not be a big fan of it either, but I don't go around constantly bashing it, especially after i've read all these posts where people have had excellent results with it.
If you don't have anything useful to say about it, just don't say anything at all.
and Seeing how its now made by Shell which makes many good oils including Rotella....i wouldn't be the least bit shy of running anything from the shell formula to q-state and Pennzoil....i just don't care for the pricing.
and with the oil smell.....i'd sure hope it doesn't smell too good, it is from the dead carcasses of dinosaurs......that have been in the ground for a million years.
WhooooooooWeeeeeeee !!!
I felt the sting of that tougue lashing all the way out in California.
I felt the sting of that tougue lashing all the way out in California.
re-refined is an extremely good idea, less dependence, and i believe it to be every bit as good.... why not, only makes sense... we could just keep using recycled and use the new to make gas.
Even under the most efficient reclamation operations, there'd be some unavoidable loss, but the days of depending on profligate use of rotted animal and vegetation pools deep underground in the middle east have to come to a close. The West can neither afford to do otherwise financially or politically. It's high time the five sheiks and a mullah seek gainful employment. Who appointed that they should they be any less miserable than the rest of us?
In the case of hydrocracking used motor oil (neither distilled nor filtered), there's no need to seperate the "various components". They're isomerized under heat and high pressure hydrogen, in the presence of the catalyst in the reaction vessel, to the desirable paraffins. Hydrocracking is a synthesis procedure. Any sulphates present are broken down similarly. What happens to the elemental sulfer? It collects in the bottom of the reaction vessel to be harvested, further processed for purity, and sold for industrial applications. Modern, reclaimed motor oils ain't your daddy's reclaimed motor oils. It's only a matter of time (and not that much the way things are going in the mid-east lately) that reclaimed, hydroprocessed used motor oils will be more economically attractive than hydroprocessed virgin crude. It's past time to consider used motor oil a disposability problem and recognize it for what it really is - a national resource.
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