Originally Posted by Seafire
so contrary to the way I was taught, this light weight oil stuff seems to be doing its job,
and I really don't need to let the car idle a little to warm up before taking off in it...

a habit I've always done...

There is also plenty of oil listed for high mileage vehicles on the shelves in all weights. Don't know if that is just marketing hype or not, but probably doesn't hurt to use them.