Propane in 2018 Thor ACE 30.4 Motorhome
The 2018 Thor ACE 30.4 has an 88-pound Propane Tank. That’s 33 gallons.
https://rvshare.com/blog/how-to-use-propane-for-your-rv/#:~:text=To%20use%20your%20RV%20stove%20and%20oven%2C%20you,if%20you%20have%20one%29%20to%20light%20the%20fuel.
Most RV Campgrounds sell propane. Many U-Haul dealers sell propane, usually for less than a campground. Just Google “propane refill near me.”