Its a myth.

Usually the stores around here always have 15w-50, its the 0w-40 that seems to be hard to find sometimes which is what I use.

__________________
Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record