Every oil is a fixed viscosity at a fixed temperature.
No oil could behave that way. Viscosity always will change with a temperature change.
0w0 oil for sale?
- Thread starter Owen Lucas
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A KV100 less than a xW-8.
As long as an oil has a viscosity, which they all do regardless of how thin they are, the viscosity and even the HTHS viscosity can be measured.
A "0W-0" would not be "zero viscosity". The second "0" would have to be defined as some viscosity grade, just like all other motor oil viscosities have an associated grade.
MolaKule
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A 0W0 would not have a 100C Kinematic Viscosity of 0 cSt. It would certainly be less than 5 cSt but not zero.
But there is more likely to be a xW-4 and xW-2 before getting to xW-0 (which I don't think will ever happen).
Yes, and they would all have to be defined with a KV100 less than a xW-8, in respective decending order.
OVERKILL
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Yep, the issue is, that with SAE 0 not being defined, like with SAE 5 also not being defined, when companies make up oil grades and slap them on a bottle, they don't care that there is almost assuredly an existing SAE grade that applies. IIRC, one of the ones that was labelled as "0W5" was actually a 0W-12, another was a 0W-20.
"Back in the day" there were monograde Winter oils. You could buy SAE 20W for example, and other exciting grades like 10W-20W-40:
If we go by J300:
An SAE 0W would need to have a CCS of 6,200cP or below @ -35C, an MRV of 60,000cP or below at -40C and a KV100 of 3.8cSt or higher. They can ignore HTHS.
And since it doesn’t exist as a standard then anyone can define it however they wish. One is this way and another that.
The misunderstanding of grades can be amazing sometimes.
OVERKILL
$100 Site Donor 2021
BTW, found this "review" and let me just say... WOW. Oil alloy | Page 3 | Veloster Turbo Forum
The unrelenting and ceaseless crapola in that thread is dumbfounding. It has to be 99% trolling.
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That was fun read, rich weirdos in search of a solution to a problem. The right customer for this kind of stuff.
wemay
Site Donor 2023
You may use 0W-8 in hotter climates.
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Ermahgerd...this reads like it was written by a high-school drop-out.
X
Wasn't there an oil with no vm in old days? Straight 20 or something like that. Is that the one in your post? I recall Shannow talking about it.
Wasn't there an oil with no vm in old days? Straight 20 or something like that. Is that the one in your post? I recall Shannow talking about it.
That’s as far as they can take it……unless we get a 0w negative 5 oil….
OVERKILL
$100 Site Donor 2021
Any oil without VII's can be labelled a monograde or a multigrade, so a 10W-20 for example with no VII's could be sold as an SAE 20. AMSOIL used to sell a 10W-30/SAE 30 that was formulated in this manner. The entire HPL No VII lineup is this way, they could all be sold as monogrades.
You can see the one example I posted was only Winter rated, just SAE 20W no hot grade.
Sorry, I can't tell if you are agreeing with what I said or not.
As far as I can see the numbers to the left of the W are not linear nor have a solid value at "0". The numbers to the right seem to be a little more defined and linear but not with a solid definition. If they keep using whole numbers there is not much more room to invent new viscosity of oil without overlap or moving the scale.
I could also be talking out of my butt as my mind has way too much free time lately.
It's all defined by SAE J300, as shown in post 27. The W grade ratings are defined differently than the hot KV100 and HTHS side of a multi-grade oil. Multi-grade oils can only fall into one W grade and one KV100 grade as defined by J300.
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