[s-cars] Mobil 1 0W40

[Thomas Green]

> Why don't you guys go change your oil?  I vote to send you to exile in
> Bartlesville, OK .
:-)

> Previous postulations:

> Date: Mon, 3 Mar 2003 09:35:28 +0000 (GMT)
> From: "=?iso-8859-1?q?J.=20Khang?=" <jhlk99 at yahoo.com>
> To: CyberPoet <thecyberpoet at cyberpoet.net>, s-car-list at audifans.com
> Cc: "J. Khang" <jhlk99 at yahoo.com>
> Subject: [s-cars] Re: Mobil 1 0W40
>
>  --- CyberPoet <thecyberpoet at cyberpoet.net> wrote:
>> Jonathan,
>>
>>    A multi-weight synthetic oil characterized as
>> X-wY, where X is a
>> numeric value (examples: 0/5/10/20/30) and Y is a
>> higher numeric value
> OK, Marc, I'll get back onto my design engineer's high
> horse here and say that you need to look up the SAE
> definitions again for multigrade oils. The LHS (xW)
> refers to the viscosity when cold, measured at 40C.
> The RHS refers to the viscosity when hot, measured at
> 100C. Rather than quote the actual viscosity which
> would confuse the hell out of everyone, the SAE has
> opted to indicate that the viscosity is equivalent to
> the viscosity of a particular grade of mineral oil at
> the same measurement temperature.