On 2 Oct 1997, Ken Streeter wrote:
> HMENTZEN@aol.com wrote:
>
> > Right now I'm using 20/50 weight oil in my Spit. I drive
> > the car all winter in MA. Its less than 5 miles to work each
> > day and I'm wondering if a lighter weight oil would work
> > better in cold weather situations. TIA!
>
> I would highly suggest switching to at least 10W40 for
> the winter in MA. At some point of chilling, 20W50
> becomes too thick to be pumped by the oil pump. From
> what I can find out, this is about 10F for 20W50
> Castrol GTX. 5W30 Castrol GTX should be good down
> to about -15F. For best protection against hard
> starts, and extra wear from jello-like oil, switch
> to a synthetic.
As universal oil for pretty hot summers (like this year), and really
freezing winters alike, we use 5W-50 synthetic. Works like a charm, and
the engine starts effortlessly whatever the temperature. I'm quite
convinced this means that wear is also reduced. There is also a
0W-something for those who are planning trips to the North Pole.
5W-30 is a bit on the thin side for summer use, IMHO, which is an
important consideration since a synthetic oil will often last from one
season to the other. Interestingly, Mobil does not sell 5W-30 here, only
5W-50.
Egil
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