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#4722602 - 04/10/18 10:30 AM Why not just use 0w oils?
Volvoeric Offline


Registered: 04/09/18
Posts: 11
Loc: Oakville,Ontario
Sorry if this is a dumb question, but... if a 0w30 oil is in theory, the same as a 10w30, why dont we just all use the 0w30?

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#4722616 - 04/10/18 10:47 AM Re: Why not just use 0w oils? [Re: Volvoeric]
Reddy45 Offline


Registered: 08/15/08
Posts: 3025
Loc: USA

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#4722625 - 04/10/18 11:00 AM Re: Why not just use 0w oils? [Re: Volvoeric]
NormanBuntz Offline


Registered: 07/27/13
Posts: 2165
Loc: Outer Banks, NC
In Canada I'd use 0w-30. In Florida 5w-30 is fine, and it's cheaper. To me it's more about climate than anything else.
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#4722626 - 04/10/18 11:01 AM Re: Why not just use 0w oils? [Re: Volvoeric]
MotoTribologist Offline


Registered: 02/03/16
Posts: 579
Loc: NJ, USA
I choose 0W oils over 5W or 10W at each opportunity.

To answer your question though, the reason should be cost. I don't really price compare on the retail end so maybe I'm wrong, but I should think 0W oils are more expensive on the shelf. They are definitely more expensive to manufacture.

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#4722637 - 04/10/18 11:19 AM Re: Why not just use 0w oils? [Re: Volvoeric]
Patman Offline



Registered: 05/27/02
Posts: 20486
Loc: Oakville, Ontario
Originally Posted By: Volvoeric
Sorry if this is a dumb question, but... if a 0w30 oil is in theory, the same as a 10w30, why dont we just all use the 0w30?


More VII, so it won't be as shear stable. In the case of my Corvette, I don't need to worry about cold starts, and I want an oil that will stay solidly in grade, especially if I get a little bit of fuel dilution due to the direct injection. So I wouldn't consider a 0w30 there. In my Honda, I've had a problem with M1 0w20 thinning out too much for my liking as well, so I bought some Pennzoil Ultra Platinum 5w20 for it's next interval to see if it maintains it's viscosity better.

BTW, welcome fellow Oakville resident! smile
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#4722645 - 04/10/18 11:27 AM Re: Why not just use 0w oils? [Re: Volvoeric]
mclasser Offline


Registered: 04/13/13
Posts: 2259
Loc: The Northeast
The 0W vs 10W aspect matters for oil burning engines. From what I've read on here, the lighter 0W may slip past worn rings and burn more easily compared to a 10W.
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#4722646 - 04/10/18 11:27 AM Re: Why not just use 0w oils? [Re: MotoTribologist]
hatt Offline


Registered: 01/03/12
Posts: 4408
Loc: Florida
Originally Posted By: MotoTribologist
I choose 0W oils over 5W or 10W at each opportunity.

To answer your question though, the reason should be cost. I don't really price compare on the retail end so maybe I'm wrong, but I should think 0W oils are more expensive on the shelf. They are definitely more expensive to manufacture.
What benefits will I see with a 0W vs a 10W in Florida?
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#4722649 - 04/10/18 11:30 AM Re: Why not just use 0w oils? [Re: Volvoeric]
racin4ds Offline


Registered: 05/07/10
Posts: 1025
Loc: Ocala, Florida
Patman- Have you had that M1 tested from your new Vette yet? You might want to look into a more robust oil if you really like the car and plan to keep it... wink

You think that M1 sheared in your Honda, what do you think its gonna do when you beat on that Vette? M1 isn't the oil it used to be, not even close...

Que the M1 fanboys... hornets hide


Edited by racin4ds (04/10/18 11:32 AM)
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Just say NO to thin oils and M1!
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#4722651 - 04/10/18 11:32 AM Re: Why not just use 0w oils? [Re: Volvoeric]
Kestas Offline



Registered: 06/04/02
Posts: 12396
Loc: The Motor City
I was told burn-off is a consideration when using 0W oils. Their light weight makes them more susceptible to loss as a volatile. Given that the average motorist doesn't check their oil, and oil changes have been extended, there is a serious concern that many people would run their engine low on oil. Also for this same reason, 0W oils can only be produced as a synthetic to reduce this loss.

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#4722655 - 04/10/18 11:33 AM Re: Why not just use 0w oils? [Re: hatt]
demarpaint Offline


Registered: 07/03/05
Posts: 30012
Loc: NY
Originally Posted By: hatt
Originally Posted By: MotoTribologist
I choose 0W oils over 5W or 10W at each opportunity.

To answer your question though, the reason should be cost. I don't really price compare on the retail end so maybe I'm wrong, but I should think 0W oils are more expensive on the shelf. They are definitely more expensive to manufacture.
What benefits will I see with a 0W vs a 10W in Florida?


Most likely you have a lower NOACK, less prone to shearing oil using a 10W in Florida. IMO a better choice for Florida.
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#4722656 - 04/10/18 11:36 AM Re: Why not just use 0w oils? [Re: Volvoeric]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3483
Loc: Columbus,Nebraska
I do. Getting ready to pour five quarts of Mobil I 0W-30 AFE in my 04 Camry V6.Nothing wrong with Mobil I 5W-30. Very good product.

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#4722660 - 04/10/18 11:48 AM Re: Why not just use 0w oils? [Re: hatt]
MotoTribologist Offline


Registered: 02/03/16
Posts: 579
Loc: NJ, USA
Originally Posted By: hatt
Originally Posted By: MotoTribologist
I choose 0W oils over 5W or 10W at each opportunity.

To answer your question though, the reason should be cost. I don't really price compare on the retail end so maybe I'm wrong, but I should think 0W oils are more expensive on the shelf. They are definitely more expensive to manufacture.
What benefits will I see with a 0W vs a 10W in Florida?

Probably nothing discernible

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#4722665 - 04/10/18 11:53 AM Re: Why not just use 0w oils? [Re: racin4ds]
OVERKILL Offline


Registered: 04/28/08
Posts: 36603
Loc: Ontario, Canada
Originally Posted By: racin4ds
M1 isn't the oil it used to be, not even close...


Ahh yes, this bovine excrement again. I see you don't tire of rolling this steaming wheelbarrow load out whenever the chance presents itself smirk
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#4722678 - 04/10/18 12:02 PM Re: Why not just use 0w oils? [Re: OVERKILL]
PimTac Online   content


Registered: 03/04/17
Posts: 4628
Loc: Soviet State of Washington
Originally Posted By: OVERKILL
Originally Posted By: racin4ds
M1 isn't the oil it used to be, not even close...

Ahh yes, this bovine excrement again. I see you don't tire of rolling this steaming wheelbarrow load out whenever the chance presents itself smirk

Yep it’s just shark meat for the sharks. The “My brand is better than yours” argument is just plain childish.

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#4722711 - 04/10/18 12:28 PM Re: Why not just use 0w oils? [Re: OVERKILL]
BrocLuno Offline


Registered: 09/06/15
Posts: 5621
Loc: Kalifornia Kollective
Originally Posted By: OVERKILL
Originally Posted By: racin4ds
M1 isn't the oil it used to be, not even close...


Ahh yes, this bovine excrement again. I see you don't tire of rolling this steaming wheelbarrow load out whenever the chance presents itself smirk


Yeah, except it is partially true ...
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Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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