Grill grates are rusting. 
I season the grates regularly with peanut oil. 
The heat deflector are rusting also. 
I live in southern Nevada. 
The grill is always covered when not in use with a high quality cover. 
The grill is kept under my patio cover full time. 
This is disappointing.
I love the performance of my grill but quality cast iron should last and ladt