You may find that your oven racks become difficult to slide in and out, especially after a self-clean cycle.
Flat Rack (if hard to slide)
Put a small amount of vegetable oil on a soft cloth or paper towel.
Rub the vegetable oil onto the left and right edge of the racks, ensuring they are lightly coated. (Warning: cooking oils (olive oil, coconut oil, peanut oil, etcetera) will cause discoloring or rust-like color residue on the racks and oven cavity sides. To clean this residue, use soap and water or a vinegar and water solution. Rinse with clean water and dry with a soft cloth.)
Roller/Extension Rack - If the extension racks are difficult to extend: Lubricate the racks with the graphite lubricant provided with your oven. If the graphite lubricant is missing or more is needed, the part number is WG02A00297 which we carry and sell - OEM product at $65.00
Remove the rack from the oven. Remove any debris in the side tracks with a paper towel.
Shake the graphite lubricant. Place 4 drops in the tracks on the left and right sides of the oven. Replace the rack in the oven. Then, open and close the rack several times to distribute the lubricant.
If the extension racks are difficult to remove or put back into the oven: Wipe the oven rack supports with vegetable oil. Do not wipe oil on the rack slides.
Warning: Using other cooking oils (olive oil, coconut oil, peanut oil, etcetera) will cause discoloring or rust-like color residue on the racks and cavity sides. To clean this residue, use soap and water or a vinegar and water solution. Rinse with clean water and dry with a soft cloth.
See https://majorapplianceparts.ca/