I'd like to second Anthony's choice.  I'm a 15w50 Mobil1 user as well.
 Although my 2.1 WBX only has just over 90K miles, I decided on 15w50
because it flows better than my customary high-mileage choice Castrol
20w50 on start up and provides great protection in the Southeastern
climate.  My oil temp gauge indicates about 10C temp decrease over
Castrol at highway speeds of around 75 mph and oil pressure gauge
shows good consistent readings.

Once I install the external oil cooler I'll likely change oil to
10w40, Mobil1, of course.

I am intrigued by 0w40, but would like to find out more about its
behavior in our older, larger tolerance WBX motors.  What would Bob
Donalds say?

On 4/29/09, Anthony Egeln <regnsuzanne@yahoo.com> wrote:
> I use Mobil 1 full synthetic 15/50 year-round in all my vehicles here in
> sunny northeast Florida, based on the recommendation of some of the more
> respected voices on the list.
>
> And I don't own a car with less than 165,000 miles on it ('97 Toyota Avalon
> 165,000; '95 Mercedes E320 Wagon 275, 000; and '89 vanagon 310,000 but can
> only confirm the 75,000 I've put on it since buying the van).
>
> Anthony
> '89 Syncro GL (Hidalgo)
>
>
> --- On Tue, 4/28/09, Robert Stewart <robertmstewart@MAC.COM> wrote:
> From: Robert Stewart <robertmstewart@MAC.COM>
> Subject: Re: Oil Suggestions
> To: vanagon@GERRY.VANAGON.COM
> Date: Tuesday, April 28, 2009, 11:56 PM
>
> So what weight Mobil 1 are people running?
>
> 15/50
> 0-40
> 10-30 High Mileage
> 10w-40 High Mileage
>
> What is best for hot summer temperatures?
>
> What is best for long driving during the hot temperatures?
>
> So far I am hearing 15/50 from the forum. Am I getting this wrong?
> The 10W-40 seems also like a strong number 1 contender as being the
> 1st weight choice.
>
> What is the difference really between 15/50 and 10/40?
>
> Robert
> NY
>

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Chris S.
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