Reason I rarely leave oil in over 12 months regardless of miles. Here’s what 10K Mobil 1 oil warranty states. What the period of coverage are.
The Mobil 1 limited warranty is valid for 10,000 miles or your vehicle’s OEM recommended oil change interval, whichever is longer.
Additional requirements for all Mobil 1 products include:
“Oils must be put in service not later than five (5) years from the date of purchase; and
an oil change must be completed every twelve (12) months.”
IMO most of use don’t drive car long distances daily like going to work to Orlando and back or further, which some easily put 15K plus miles year on in those cases you could probably leave or in to maximum distance cause probably exceed mileage before 12 months or so. Which IMO is not extreme driving conditions normally? stop and go short distance driving are extreme driving conditions IMO.
Here’s certified master Toyota mechanic opinion on 10 K oil changes.
Toyota Master Technician Argues Against 10,000 Mile Oil Change Intervals With Busted Engine Teardown | Carscoops