I bought a whirlpool single wall oven and have had it sat in my kitchen waiting for install for about 4 months. My cabinets arrive tomorrow and the oven cabinet has specific instructions that suggest I need to insulate the oven to prevent discoloration. Does this mean that my oven isn't insulated and I need to acquire some other form of insulation before I can install my oven?

I have read through the installation instructions for the oven and nothing is mentioned about insulating the oven to protect cabinetry.
Please help.