Warm start rattle solved on my car!

[SlickFix]

I get cold start rattle most of the time. I get the occasional warm start rattle, but they are few and far between and have been less frequent since I switched to Mobil 0w40.

This is exactly my situation, too. I rarely get a warm rattle. In fact I can only remember two or three in the three years I've had my car. But I get a cold rattle almost every startup in the morning. I use Mobil One 0w40, too.