Leaving my car; Long Term storage advice?

[Jaxonalden]

A year and a half! Damn bro thats a long time. At a minimum, wash and wax (good) and have the interior leather conditioned. Change the oil and fill the tank with high octane fuel with Sta Bil gas additive and run the car so the Sta Bil is in the entire system. Jack the car and spray lube on the exposed strut surfaces. Raise the top and remove the battery and cover it up with a good cover. Hopefully you have a secured facility to store it in, and have it insured for comprehensive at a bare minimum.

Upon return; change the oil, replace the battery, wash the car and drive like hell!!