[fragmede]

https://physics.stackexchange.com/questions/34421/does-the-m...

It's about a microgram.

[hermitdev]

So, in other words, you gained more mass from bugs splating on the windshield than you lost in the battery.

[acdha]

Don’t worry, we’ve been working on that:

https://www.science.org/content/article/where-have-all-insec...

[b112]

But in the winter, as the cabin warms up, you have fewer air molecules to cart around.