[s-cars] Re: Mobil 1 0W40

[J. Khang]

> Some words of caution to those of you with older
> (pre-1998) Audi's (or other brands), especially
> those with higher mileage counts: this oil is
> thin enough that your engine may have difficulties
> in maintaining proper oil pressure at idle.

Oh dear, it's this one again. OK, let's go over what
the viscosity ratings actually mean again.

A 0W oil has a kinematic viscosity of 80 cP at 40C. A
40 weight oil has a kinematic viscosity of 14 cP at
100C. Therefore, a 0W40 is thicker at room temperature
than it is at operating temperature.

Still think that a 0W oil is too thin? Why?

Jonathan
'96 S6

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