[Overdrive]

I don't think it was ever expected to be...usually people talk about moving away from Mobil 1 to get rid of the rattle on startup by going to a different oil. I'm running Motul right now, and the noise at startup happens less frequently for me now, usually only happens after the car's been sitting for a few days between starts, and goes away faster than it did on Mobil 1. But it could have to do with a lot of things, and I've yet to run the car on this oil during the wintertime to see how it performs.