In dino oils it's not necessarily a good thing. The base stock of the oil is
always the lower(winter) number and modifiers are added to bring up the
viscosity at the higher temps. These modifiers are not as good lubricating
agents as the base stock is. Ideally, you should time your oil changes so
that you use the right oil for the weather. The widest range in synthetics
is fine. Synthetics are designed to have this viscosity differential built
in.
Dr. Pat
----------
>From: RCPL-VAN CNIWR <RCPL-VAN_CNIWR@van.reid-crowther.com>
>To: "dakota-truck@buffnet.net" <dakota-truck@buffnet.net>
>Subject: DML: Re: Oil
>Date: Wed, May 19, 1999, 3:59 PM
>
>
>
> I like to use the widest range of viscosity available to me. I
> paticularly like 5 weight for cold start-up. The 50 weight might be a
> bit excessive, since I don't tow anything (and can't really anyway.
> Thanks Dodge). So, next time around, I'll probably put in 5w30 Mobil
> 1, or Castrol Syntec, or Pennzoil synthetic. I've used Pennzoil for a
> long time and liked it. When I owned a 88 5.0 Mustang, I always had
> low oil pressure. After moving to BC from Alberta (much closer to
> sea-level in BC), and switching to 10w40 in winter and 20w50 in
> summer, my pressure rose to normal ranges, making me feel a lot
> better.
> Chad Niwranski
> 99 R/T CC Black/agate
> Abbotsford, BC
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