Re: Oil Weight

[jonesy@domain.elided]

>An oil company representative suggested that you run whatever weight of
>oil was specified in the owner's manual.  I have found that hard advise to
>beat.

While the above statement is true, I would like to add that the owner's
manuals also qualify this with temperature ranges the vehicle will be
driven in. For example, 10W40 should be used for -10 to 30 degrees Celcius,
and 20W50 should be used for 5 to 40 degrees Celcius - in the same vehicle!

So I would recommend 10W40 if you are in a cold area and 20W50 if you
are in a warm climate - if these are the weights recommended in your
owner's manual.

Regards,
Robert Jones,
Sydney, Australia
1979 Alfetta GTV 2000 - 20W50 all year round.

PS. The temps quoted above were fictional - look in your owner's manual for
    the real figures.

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