Quote:
Originally Posted by lkchris
I think in 2013 the motivation for 10W is the fuel economy numbers.
|
I'm sure that helps, especially as the minimum weight that BMW is willing to use. Anything lower in a 0W or 5W that has the 'Energy Conservation' label and you lose a good portion of the anti-wear additives. Of course, this doesn't preclude BMW from coming up with their own oil spec like they and others are already doing with the autos.
Someone in here has worked for an oil company and was involved with this. Who was that? I'd like to get the inside information.