>>>Not sure why though it would take him long to understand extended drains are possible??
Heck, there are a lot of folks on this board who can't seem to understand that-- and I've found an awful lot of them over the past 25 years.
It really isn't abnormal within the oil industry. Wasn't too many years ago when a Sun Oil rep told a friend "When the world is ready for synthetics, we'll have one." Think they finally came out with a semi-synthetic. The head of Valvoline commented a few years back that extended drains were not feasible with synthetics, because the same additive package was used as in the non-synthetic.
And Arnie's grandpa only used oil from a yellow can.