Okie -

Great link - very informative. I do notice that there's is a big swing in the some of the numbers - for example the Mobil 1 15w-50 CCS went from 5200 when tested in Feb 30 to 7000 when tested in March 03. Some of these numbers are considerably different from the numbers posted on the products website - Delvac 1300 looks close, the Shell products don't, and of course the Mobil 1. Obviously the manufacturers have a dog in this fight, so their objectivity can be questioned. Is this link sponsored by Amsoil or are they just hosting the results? Either way, interesting stuff. My personal experience w/ the Mobil 1 15w-50 has been easier cold weather starts, but then it rarely gets colder than 15 degrees or so here.

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Tjohn

82 300 SD
77 450 SL (gone)