Some grills are stainless, some are powder coated etc. Post how & what you use to clean your grill. My grill is completely stainless so I use bar keepers friend on the outside. I have two pellet grills, I have a Memphis Elite & a Memphis Pro, I use the Elite for the low & slow so I do not burn it off or clean the inside (except the cooking grates) cause I want the seasoning to stay, I foil my heat deflector... On my Memphis Pro I also use bar keepers friend on the outside,this grill is my high heat cooker for burgers, steaks, chicken, pizza etc... so this one I use high heat to burn off so I don't have any grease fires when I use it, I also foil the heat deflector.
Post what products work well for you.