[Healeys] Oil

Bob Spidell bspidell at comcast.net
Fri Apr 10 07:17:52 MDT 2015

Interesting.  I wonder if the 'silt' I see is a product of oxidation.  
Something to keep in mind; though I usually use the oil within 5 years.

My thanks to you and Kees.


On 4/9/2015 12:52 PM, Reinhart Rosner wrote:
> Bob,
> There recently was an interesting additional brochure about oil on a German
> classic car magazine (Oldtimer Markt) where I found the following about
> stability (of course I tried to translate it):
> Single-grade oils (0W, 5W, 10W, ...) are virtually unlimited useable if
> stored in a closed can, even if it was already opened.
> Multi-grade oils (0W-20, 5W-20, 0W-30, 5W-30, 10W-30, ....) age from
> oxidation of their additives and lose their physical and chemical features.
> Therefore it is recommended to use up the can or the barrel within 5 years.
> Reinhart
> Reinhart Rosner
> 55 AH 100 BN 1
> Vienna – Austria

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