Share what you have done recently or lately to your Buick LaCrosse. This can be very informative to take a look at what everyone does to their Buick.

I have a 2017 LaCrosse and I flushed all fluids with these products which are solid, been using them in other vehicles and no problems...
https://www.searchforparts.com/oil-c...acrosse-3.6l-s
Gotta make the vehicle last, will not be buying any new car soon and I have peace of mind flushing everything out, even the coolant and won't have to worry about it for a while since it is all synthetic stuff. (I saved a bundle as well by not going to the dealer for a complete flush with subpar fluid or who knows whatever they use, not going to be as good as searching for your own stuff).

Next I will be changing the mirrors, hopefully, I can do it myself as they are scratched and dented thanks to my wife.