Oil viscosity - why the 20W-50 BS?

abodyjoe said
and i have cars go well over 100k running 5-30. oil has come a long way. want to stay in 1950 then so be it.

like i said earlier..

its the same bullshit as:

have to change the oil every 3000 miles
a 904 won't hold any power and you have to run a 727
you can't go more then a 3000 stall converter for the street

etc..etc...etc...

The only BS I can see is "if I want to stay in the 50's". What I do, has proven that it works. Why would I chance going to yours??? Better gas milage? .001 of a second faster in the quarter mile? Not going to happen. I even run straight 30W in the summer. What you do with your money or car is your business. I don't care.