Here is an update on our 2018 Model S.
We filed a "vandalism" claim with our insurance company.
They hired an investigative engineering firm that after a lot of work determined that our coolant was contaminated by "ATF-9", a lubricant that Tesla DOES USE IN THEIR CARS.
This means that on top of making a terrible mistake and pouring ATF-9 into our coolant loop, Tesla egregiously lied to us with their story of an "analysis that showed that the coolant was contaminated by motor oil that we don't stock here".
I really hope the insurance company goes after this bunch of crooks that left their customer with a totalled car and a bunch of bullshit explanations.