Why would our Corolla's need an oil change every 6 months if it sits in the garage 90% of the time? Seems overkill. The rest of the items listed under the Required Maintenance would also be a waste of time every 6 months if the car doesn’t even move. During the lockdown, the car may get used about 2 times in a month. Really feel like doing the maintenance once every 12 months, but I wonder if that would void the warranty.