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Author Topic: 2 quick oil questions  (Read 1437 times)

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Offline lunkhead

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Re: 2 quick oil questions
« Reply #15 on: June 29, 2020, 10:58:31 am »
With mineral oil, a 10w starts life with an actual average rating that's higher. A mix of molecules ranging between 10w and 14w would be used to make a 10w, a range of 15w-19w for a 15w and so on. This allows for degradation during use and none of the refined oil used to make 0w-* thru 20w-* is wasted. Mixing a 15w and 20w will give you an oil with molecules ranging in size from 15w to 24w with an average of 19.5w so it would be considered a poorly refined 17.5w.

With synthetics, a 10w might start life as a 12w (not an average) and degrade at a slower rate. I really can't say for sure because the specific physical properties for what qualifies as a synthetic might vary and is beyond my knowledge anyway. The uniformity of molecule size is a major aspect so if a conventional oil was refined further to separate the molecules by exact size instead of just a range of sizes, it could be considered a synthetic. A 10w rating would no longer be a range average as in a conventional oil. It would be a perfectly uniform 10w (or whatever it needs to start with to allow for degradation) throughout. By mixing two different grades of synthetics like 15w and 20w, you don't end up with a 17.5w synthetc because it no longer qualifies as a synthetic and there's no 17.5w uniformity or otherwise in it.

Disclaimer: I went out on limb to "try" and put things in layman's terms and I'm no expert so don't bust my balls of I'm wrong about the exact details. I'm sure it can be picked apart and I might even learn a thing or two in the process so have at it.
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Offline DrM

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Re: 2 quick oil questions
« Reply #16 on: June 29, 2020, 05:30:06 pm »
Okay DrM, when you cop an attitude after criticizing someone without a degree, all you do is come across as an ass.  You may have a superior intellect but nobody is going to care.
No need to get your nose all bent out of shape.  You can talk all you want to about things you don't know about.

Offline Sdaniels

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Re: 2 quick oil questions
« Reply #17 on: June 30, 2020, 07:56:07 am »
Okay DrM, when you cop an attitude after criticizing someone without a degree, all you do is come across as an ass.  You may have a superior intellect but nobody is going to care.
No need to get your nose all bent out of shape.  You can talk all you want to about things you don't know about.

I'm not the one getting bent out of shape.  I never claimed to know anything about this & the only comment I made was asking you a simple question...a question you refuse to answer but instead respond like a spoiled child threatening to take his ball home.
2015 C-spec

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Offline DrM

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Re: 2 quick oil questions
« Reply #18 on: June 30, 2020, 09:44:42 am »
Okay DrM, when you cop an attitude after criticizing someone without a degree, all you do is come across as an ass.  You may have a superior intellect but nobody is going to care.
No need to get your nose all bent out of shape.  You can talk all you want to about things you don't know about.
I'm not the one getting bent out of shape.  I never claimed to know anything about this & the only comment I made was asking you a simple question...a question you refuse to answer but instead respond like a spoiled child threatening to take his ball home.
Sounds to me like your nose is bent all out of shape.  Just saying.

Offline lunkhead

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Re: 2 quick oil questions
« Reply #19 on: June 30, 2020, 11:28:56 am »
There was probably a time before multi-grades were invented when it was common knowledge that two different base stocks shouldn't be mixed. The obvious exception would be that your oil level was low and any oil added is better than not enough.
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Offline DrM

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Re: 2 quick oil questions
« Reply #20 on: June 30, 2020, 12:05:37 pm »
There was probably a time before multi-grades were invented when it was common knowledge that two different base stocks shouldn't be mixed. The obvious exception would be that your oil level was low and any oil added is better than not enough.
You might be right, but I highly doubt it.  Sounds more like an old wive's tale to me.  Might sound better if you had a credible source for it that specifically says that (and not just your interpretation of what might have been said.)

Offline lunkhead

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Re: 2 quick oil questions
« Reply #21 on: June 30, 2020, 01:19:47 pm »
DrM, do you even no what a multi-grade is? You put it in the engine and never have worry about changing viscosities seasonally. Back in in the day, come winter, you weren't going anywhere if you if you didn't know differences between grades. IMO, the average person had a greater knowledge of how things work in general.
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Offline DrM

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Re: 2 quick oil questions
« Reply #22 on: June 30, 2020, 01:41:16 pm »
DrM, do you even no what a multi-grade is? You put it in the engine and never have worry about changing viscosities seasonally. Back in in the day, come winter, you weren't going anywhere if you if you didn't know differences between grades. IMO, the average person had a greater knowledge of how things work in general.
Just my opinion, but you might be going off on the deep end of self-agrandizement.  In any case, I have been using full synthetics (Mobil 1) for many years - well within the temperature range it is made for.  So no need to worry your pretty little head about it.

Offline Sdaniels

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Re: 2 quick oil questions
« Reply #23 on: June 30, 2020, 02:13:35 pm »
Okay DrM, when you cop an attitude after criticizing someone without a degree, all you do is come across as an ass.  You may have a superior intellect but nobody is going to care.
No need to get your nose all bent out of shape.  You can talk all you want to about things you don't know about.
I'm not the one getting bent out of shape.  I never claimed to know anything about this & the only comment I made was asking you a simple question...a question you refuse to answer but instead respond like a spoiled child threatening to take his ball home.
Sounds to me like your nose is bent all out of shape.  Just saying.

Sounds to me like you still can't answer a simple question.  Just saying.  If you plan to respond without answering again, please don't bother.  I'm not going to waste my time responding to you about it anymore.
2015 C-spec

Offline DrM

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Re: 2 quick oil questions
« Reply #24 on: June 30, 2020, 02:29:52 pm »
Okay DrM, when you cop an attitude after criticizing someone without a degree, all you do is come across as an ass.  You may have a superior intellect but nobody is going to care.
No need to get your nose all bent out of shape.  You can talk all you want to about things you don't know about.
I'm not the one getting bent out of shape.  I never claimed to know anything about this & the only comment I made was asking you a simple question...a question you refuse to answer but instead respond like a spoiled child threatening to take his ball home.
Sounds to me like your nose is bent all out of shape.  Just saying.

Sounds to me like you still can't answer a simple question.  Just saying.  If you plan to respond without answering again, please don't bother.  I'm not going to waste my time responding to you about it anymore.
Good!

Offline lunkhead

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Re: 2 quick oil questions
« Reply #25 on: June 30, 2020, 02:40:30 pm »
DrM, nothing you say has anything to do with what I said. I use Mobil 1 synthetic in my truck and lawn mower. 5w-20 and 10w-30 respectively. For my bikes I use higher quality oil at 10w-40. No need to run any thicker than necessary with a synthetic. The cost might not be justifiable for most people but I get a huge discount on the best motorcycle-specific oils but we don't sell Mobil 1. Like I said, run what you want.

You have a right to be a doubting Thomas but do your own research before you put your foot in your mouth. You already proved yourself to be fool so quit while you're ahead. Besides I thought we weren't on speaking terms.
C-SPƎC

Offline DrM

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Re: 2 quick oil questions
« Reply #26 on: June 30, 2020, 04:29:26 pm »
You seem to be following a similar marketing scheme employed in an earlier era that voided one's warranty if the user used any competitive product in their machines other than what the manufacturer recommended. Maybe in some backward country such restrictions still govern, but not in the US.  I don't know a single manufacturer or brand sold in the US that still uses that ploy. The same goes for mixing brands -- no manufacturer or brand prohibits it or voids a warranty because of it.  If you know of any, please let me know.  But of course, like you say -- you are free to believe your own myths.

Offline lunkhead

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Re: 2 quick oil questions
« Reply #27 on: June 30, 2020, 05:49:11 pm »
DrM, run what you want. The Bolt won't break because you mix oils so what does warranty have to do with anything? I'm just saying two base stocks shouldn't be mixed for the reason I gave. Think about it, the oil company went thru all the trouble to create separate base stocks thru the refining process and all you're doing is reverting it back to a less refined condition. Don't you get it? If you still don't understand and you won't believe me, do your own damn research to get the facts and stop being ignorant. If you think you can get a better oil by mixing two base stocks, you are sadly mistaken.

You won't answer Sdaniels question because you're trying to save face. We get it. If you don't think I'm right, tell us why you did it. Saying it's not prohibited is a cop-out.
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Offline DrM

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Re: 2 quick oil questions
« Reply #28 on: June 30, 2020, 08:24:56 pm »
You said it right -- no warranty impact -- and that is why I do it!!!!  Live with it (or ignore it) - as far as I am concerned your argument against mixing brands is specious, but follow what myths you want. And try to control your temper - no use blowing out your brain cells.   

Offline lunkhead

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Re: 2 quick oil questions
« Reply #29 on: June 30, 2020, 10:03:14 pm »
So, what's the advantage of mixing base stock viscosities when each by themselves is more refined (higher quality)? So far, I heard it's not prohibited and it doesn't void the warranty. You don't know much about oil, do you?
« Last Edit: June 30, 2020, 10:19:49 pm by lunkhead »
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