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#4466083 - 07/21/17 11:49 AM How much crude oil is in a quart of engine oil?
EyesofThunder Offline


Registered: 02/24/10
Posts: 79
Loc: North Central Illinois
I have dug around and can't seem to find out how much. Once forum member (not sure what forum) said 21 gallons of crude to make 1 QUART of librication oil, but that sounds excessive to me.

Anyone know? Or know where I can find out? Just a ballpark number.

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#4466087 - 07/21/17 11:54 AM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
MotoTribologist Offline


Registered: 02/03/16
Posts: 562
Loc: NJ, USA
About 1% of crude oil is converted to lubricating oil. So a 55 gallon drum yields about 0.5 gallons of lube oil. In other words 22.5 gallons produces about 1 quart.

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#4466093 - 07/21/17 12:02 PM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
youdontwannaknow Offline


Registered: 12/18/06
Posts: 570
Loc: CA
Wow thats obscene. Is that for dino or synthetic ?
Is the yeild better for synthetic ?
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#4466095 - 07/21/17 12:06 PM Re: How much crude oil is in a quart of engine oil? [Re: youdontwannaknow]
kschachn Online   content


Registered: 12/26/05
Posts: 9396
Loc: Upper Midwest
Originally Posted By: youdontwannaknow
Wow thats obscene. Is that for dino or synthetic ?
Is the yeild better for synthetic ?

What are you talking about? It's not as if it "takes" a whole barrel to "make" the oil and the rest is either consumed in that process or discarded. Crude oil is a very complex mixture of a wide range of molecular weight hydrocarbons, they are separated and often modified for particular uses such as lubricating oils and fuels (among many). Assuming the number quoted is correct the rest of the barrel is used for other purposes.

If one was so inclined you could either crack or convert higher or lower molecular weight compounds into motor oil and with enough effort utilize the entire barrel. It doesn't even have to be crude oil as is demonstrated with GTL.

All of this takes energy of course but it's not the whole rest of the barrel.
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#4466100 - 07/21/17 12:12 PM Re: How much crude oil is in a quart of engine oil? [Re: kschachn]
javacontour Offline


Registered: 06/26/03
Posts: 10306
Loc: Illinois
Originally Posted By: kschachn
Originally Posted By: youdontwannaknow
Wow thats obscene. Is that for dino or synthetic ?
Is the yeild better for synthetic ?

What are you talking about? It's not as if it "takes" a whole barrel to "make" the oil and the rest is either consumed or discarded. Crude oil is a very complex mixture of a wide range of molecular weight hydrocarbons, they are separated and often modified for particular uses such as lubricating oils and fuels (among many). Assuming the number quoted is correct the rest of the barrel is used for other purposes.

If one was so inclined you could either crack or convert higher or lower molecular weight compounds into motor oil and with enough effort utilize the entire barrel. It doesn't even have to be crude oil as is demonstrated with GTL.


Exactly, the crude is sorted by fractional distillation.. Some fractions are very light. Others are heavy like tar.

It's not like they say ok, this run we are making base stock and they get 0.5 gallons of base stock from a 42 gallon barrel. They process the crude and get a number of fractions from the distillation tower.
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#4466102 - 07/21/17 12:13 PM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
kschachn Online   content


Registered: 12/26/05
Posts: 9396
Loc: Upper Midwest
Originally Posted By: EyesofThunder
I have dug around and can't seem to find out how much. Once forum member (not sure what forum) said 21 gallons of crude to make 1 QUART of librication oil, but that sounds excessive to me.

As has been pointed out, it doesn't "take" 21 gallons of crude to "make" one quart of oil. That may be the ultimate yield but the 21 gallons is not consumed in the process.

You have your question backwards BTW. It isn't how much crude is in a quart of engine oil, it is how much engine oil is in a barrel of crude. Even that isn't exactly right but that is how you should look at it.
_________________________
1994 BMW 530i, 227K
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1999 Toyota Sienna, 394K
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#4466105 - 07/21/17 12:15 PM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
javacontour Offline


Registered: 06/26/03
Posts: 10306
Loc: Illinois
I think the question is how much of what is in a bottle is basestock (from crude) and how much is additives.

Not sure one will ever get a straight answer.
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#4466114 - 07/21/17 12:23 PM Re: How much crude oil is in a quart of engine oil? [Re: javacontour]
youdontwannaknow Offline


Registered: 12/18/06
Posts: 570
Loc: CA
Originally Posted By: javacontour
Originally Posted By: kschachn
Originally Posted By: youdontwannaknow
Wow thats obscene. Is that for dino or synthetic ?
Is the yeild better for synthetic ?

What are you talking about? It's not as if it "takes" a whole barrel to "make" the oil and the rest is either consumed or discarded. Crude oil is a very complex mixture of a wide range of molecular weight hydrocarbons, they are separated and often modified for particular uses such as lubricating oils and fuels (among many). Assuming the number quoted is correct the rest of the barrel is used for other purposes.

If one was so inclined you could either crack or convert higher or lower molecular weight compounds into motor oil and with enough effort utilize the entire barrel. It doesn't even have to be crude oil as is demonstrated with GTL.


Exactly, the crude is sorted by fractional distillation.. Some fractions are very light. Others are heavy like tar.

It's not like they say ok, this run we are making base stock and they get 0.5 gallons of base stock from a 42 gallon barrel. They process the crude and get a number of fractions from the distillation tower.


I was going by the first reply in the thread by MotoTribologist that said "... So a 55 gallon drum yields about 0.5 gallons of lube oil. In other words 22.5 gallons produces about 1 quart..."

How else could one interpret that ?
But thanks its good to know it does not take 22 gallons of crude to produce 1 Qt of lube oil.


Edited by youdontwannaknow (07/21/17 12:28 PM)
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#4466119 - 07/21/17 12:28 PM Re: How much crude oil is in a quart of engine oil? [Re: youdontwannaknow]
EyesofThunder Offline


Registered: 02/24/10
Posts: 79
Loc: North Central Illinois
A barrel is NOT 55 gallons, a DRUM is 55. A barrel of crude is 42 gallons.

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#4466123 - 07/21/17 12:34 PM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
Danh Offline


Registered: 10/16/10
Posts: 1749
Loc: .
Long story short, virtually every ounce of a 42 gallon barrel is used for something. It may be gasoline or diesel fuel or lubricating oil or grease or asphalt or tar or plastics, et al. True contaminants are about the only thing not used.

And if the OP's 21 gallons of crude to make 1 quart of oil was literally true, that quart of oil would cost around $25 in crude alone.

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#4466145 - 07/21/17 12:54 PM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
3800Series Offline


Registered: 08/02/14
Posts: 1452
Loc: Gulf Coast, MS
I believe the oil use to make motor oil was at one time a "waste" that had no real use before people created a purpose for it.

You can't really say X amount of crude is needed to produce motor oil as it is a by product of the crude refining process.

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#4466165 - 07/21/17 01:10 PM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
kschachn Online   content


Registered: 12/26/05
Posts: 9396
Loc: Upper Midwest
Originally Posted By: EyesofThunder
A barrel is NOT 55 gallons, a DRUM is 55. A barrel of crude is 42 gallons.

That indiscretion is made up for by the fact that crude oil is not all the same, and some will have more or less of the molecular mass fraction that is required for motor oil.
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4466184 - 07/21/17 01:24 PM Re: How much crude oil is in a quart of engine oil? [Re: EyesofThunder]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2559
Loc: MN
Answer to how much crude it takes to make 1 quart of motor oil: Not much at all if its a GTL Group III synthetic made from natural gas (i.e, Pennzoil PurePlus).

Answer to how much base oil is in a quart of oil (like the title suggests): 80%-90%, in that range.

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#4466188 - 07/21/17 01:28 PM Re: How much crude oil is in a quart of engine oil? [Re: oil_film_movies]
kschachn Online   content


Registered: 12/26/05
Posts: 9396
Loc: Upper Midwest
Originally Posted By: oil_film_movies
Answer to how much base oil is in a quart of oil (like the title suggests): 80%-90%, in that range.

If you go by what the title suggests the answer is zero.
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4466198 - 07/21/17 01:40 PM Re: How much crude oil is in a quart of engine oil? [Re: kschachn]
EyesofThunder Offline


Registered: 02/24/10
Posts: 79
Loc: North Central Illinois
Right sorry didn't word it well. Zero crude in a quart of motor oil.

Rephrased. How my crude oil is needed to be distilled or processed to end up with 1 quart of petroleum motor oil (including additives). Probably no way to get an answer.

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