Comments by "crazypj" (@1crazypj) on "The "W" DOESN'T Stand For WEIGHT! A Certified Lubrication Specialist Explains SAE Viscosity Grades." video.

  1. I thought everyone knew the W was for winter, zero degrees C oil testing, it was 'common knowledge' among mechanics in UK in the 1980's and earlier When I attended a lecture for instructors in Florida 'trade school' I found almost none of the 130+ actually knew much at all about oils, Harley 'technicians' were particularly bad and didn't want to change anything from '30weight winter and 40 weight summer' The oil engineer actually told me 'American' oil companies were selling products 10~15 years behind Europe This was around 13~14 years ago when 'black death' advertising was being done by Castrol
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