Just to add data to the discussion, I ran Mobil1 0-40 all winter here
in northern Michigan. I had no slow starts even at 15 F below 0. I use
Mobil1 15-50 during the summer. 2.1L has 215K miles on it and runs
beautifully.

John Meeks
'91 Multivan, '85 GL bits
Northern Michigan

Vanagon Rescue Squad
http://www.vanagonauts.com/Vanagon_Rescue_Squad74.htm

Radio Call:KC8ZFN

On Sun, Mar 1, 2009 at 8:58 PM, Dave Arthur <dave.arthur@nscc.ca> wrote:
> Is there an advantage to running synthetic in a WBX 2.1 over conventional
> oil? If so what weights are being used?
>
> Dave
>