[strat61caster]

Nah, I still use 0W-20, probably will switch to 5W-30 as I cross 100k miles and I'm a little more hopeful to hit up the track this year.

And you're not going to notice a difference unless you're doing consistent oil analysis and you run the engine to it's death. Not many have actually crossed 100k miles and the few who do run them hard have had issues. Cheap insurance, but not worth losing sleep over, unless of course you can't afford the $3k-$5k to replace the engine...