Recycled oil is proving to work well in apps that it is suitable for. It's as good as any grp II oil out there...

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)

The motor oil I see labeled as green says it's made with 50% recycled oil. Recycled paper is one thing but recycled oil?

SIXTO, I saw some recycled/reclaimed rerefined used engine oil at Walmart also. Done`t remember if it was a blend or not.

Rerefined used oil has been marketed for a long time, it`s nothing new. actually as I have read, oil doesn`t wear out, just gets contaminated. really don`t see why it couldn`t go back to the refineries and run through the system.

Cartrans uses rerefined oil for the whole fleet, that is every thing from cars to Roadgraders etc... and they have a huge fleet of equipment. so it must work ok.

For you in other states, Caltrans is the state agency that maintains the state highways. ODOT for Oregon, NDOT for Nevada etc... what ever Dot that is in your state.

EDIT:

I did some Google searching and found the Brand of oil the State uses. Firebird by Union 76.

http://www.coastoil.com/specsheets/76/Firebird%20HD%20EC%2015W40.pdf

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Besides contaminated, it also gets cooked. I suppose there's a way to filter out oil that's been overheated.

Sixto
87 300D^2

My understanding of oil production is that at different temperatures, different viscosities (carbon chain lengths) of oil boil off at different temperatures. It is a distillation process. When oil is run in the crank case, it is exposed to high temperatures and stress thus breaking down the carbon chains into smaller molecules. It is feasible to re-distill used oil and pull out unbroken carbon chains. Soot and contaminants should not be a problem because the distillation process is designed to isolate carbon chains in a range much smaller and or larger than those. Similar process to distilling alcohol.

Would I use recycled oil? No. Why? because it is mixed with at least 50% new oil. Why would a perfect distillation process need to be mixed with 50% known good oil? Theoretically, the re-refined oil should be in spec with acceptable carbon chain length as new oil, right? Well, I'm not a petroleum engineer, so I can't say why you would want to mix a supposedly good product with another known good product; other than the possibility that the first product is inferior. Thus, I do not use recycled oil in my crankcase. I do recycle my oil, though. The 300SD seems to like a little taste of its own blood every once in a while. If I had a supply, I would run WMO in every tank.

Like I said, I'm just a guy with a cat avatar. I bet no one can figure out the history of the cat, though. I'd be shocked if anyone could even tell me his name!

__________________
1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge

Like I said, I'm just a guy with a cat avatar. I bet no one can figure out the history of the cat, though. I'd be shocked if anyone could even tell me his name

Felix?

Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Isn't it one of the pokemon cat things?

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!