I was looking for this chart that I've seen mentioned several times. I emailed M1 about it and got an interesting response:
> Thank you for your inquiry. We do not use the numbering system referred to
> anymore, but we may be able to help with a vis/temp chart. Which Mobil 1
> product do you need vis/temp for and why do you need this information.
>
> Technical Support Engineer (WJF)
>
> The above information is provided in good faith based upon the information
> presented by the customer. ExxonMobil is not responsible for any loss or
> damage resulting from inaccuracies or errors in any of the information
> provided or any acts or omissions taken in response to our advice.
>
> Exxon Technical Support: Mobil Technical Support:
> 1-800-44Exxon Prompt #3 1-800-Mobil25 Prompt #3
> (1-800-443-9966) (1-800-662-4525)
>
>
>
> -------- Original Message --------
> Subject: Mobil1 product Technical question
> Date: Thu, 2 Oct 2003 14:55:45 -0500 (CDT)
> From: [email protected]
> To: [email protected]
>
>
> I'd like you to send me the following document, which I'm told has a temp
> vs. viscosity chart for M1 products:
>
> VTA018A.pdf
>
> Thanks!
>
>
Mobil 1 VTA018A.pdf
- Thread starter BadBatsuMaru
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Could somebody PM me this file?
Thanks.
I have it but it is bogus. Don't know what clown at Mobil made it up. It's just a straight line plotted from the vis at 40 and 100C. Viscosity is not linear.
quote:Jason, the line is plotted on a log graph, which means it isn't linear--it just appears that way because it's on a log graph.
Originally posted by Jason Troxell: I have it but it is bogus. Don't know what clown at Mobil made it up. It's just a straight line plotted from the vis at 40 and 100C. Viscosity is not linear.
Well the person that sent it, said that Mobil told them even though 0w40 was't on it, to just draw a straight line from the 40 and 100C vis. How can all oils have the same characteristics? They don't.
Like the post above said, the left side of the graph is a log function and as such, it takes what would be a steeply curved graph and shows it as linear. It the graph was not set up this way, you would need an 8 foot high sheet of paper to see the graph.
Cary
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