Well, I'm embarrassed. My text web browser printed a degree symbol as a zero. Please ignore my statements in this post.quote:
Ha, check this out from the Synlube site, under the product information for the motor oil.
Apparently it allows for engine cranking at -500F, and the 'thermally stable' lubricants are good from -650F to 5000F.
It should be noted that absolute zero temperature, the temperature at which all molecular motion stops (meaning you can't get colder than this), is -459.67F. Natural gas burns in air at about 4000F.
Calling this stuff 'snake oil' is putting it mildly, methinks.