Winterizing tips request ...2013 Grand Sport
 

What fuel additive is best?
Battery Tender for a trickle charge during storage.
Polish and wax before covering

Any other suggestions?

Welcome to the forum.

I'd use Stabil in the gas. They also have a product that neutralizes the effects of alcohol if you have to use it.

Start it and drive it once a month and get up to operating temp. even if just to end of driveway and back to keep seals lubed.

Also have heard that it's a good idea to add a little more tire pressure. Fresh oil/filter change is good.

If mice are a problem, might put some bait under the hood and in the psgr compartment.

the anniversary silver graphics. On the front hood and roof there are both pit marks and areas where the installer did a poor job of smoothing the graphic all the way out. Kind of a bubble.