Conclusions from past year:
1. If you use a zero ethanol fuel, your chances of crickets goes down. This includes Shell V-Power and (possibly) Costco 91.
2. Petro 94 and Esso 93 are prone to crickets. This happens to me when the engine is warm. So in the morning, when I start my car, no crickets. By the time I get to work, I hear them sometimes.
In the end, crickets are an annoyance, but your car won't blow up. Here is a sticker I put on my car that made my dealer laugh:
Got crickets? by
Drewbot 95, on Flickr