Hmmmm??? For the price of a Cadillac I would just stop off at the Caddy dealer every month or so and have them "top off" the washer fluid reservoir for free. Least they could do....wonder what brand of fluid they would use??? Interesting tid-bit though. Yeah, I was stationed in Montreal with the US Gov't. from '76-81; I know about Canadian winters, pure salt on the highways etc....not much fun but I sure did love Montreal and still visit there often as my daughters live just south of there in Plattsburgh, NY.