I don't see why a maximum mileage and/or time limit couldn't be stated in the owner's manual. If the car was driven steadily at 60 mph on the highway for days, what would be the maximum mileage the OEM would be comfortable with? (using their recommended oil and filter combo). In constant short trips a 2 miles or less what would be the min? I would think this would be useful information for the car owner, especially if they exceed the limits and the O/L monitor says otherwise. O/L monitors can malfunction too.
I guess it comes down to that the OEM doesn't think the car owner is capable of thinking and analyzing for themselves. And in many cases, they're right. No doubt some guy seeing a 15K max oil run will think it applies to their 2 mile daily commute in Alaska.
I guess it comes down to that the OEM doesn't think the car owner is capable of thinking and analyzing for themselves. And in many cases, they're right. No doubt some guy seeing a 15K max oil run will think it applies to their 2 mile daily commute in Alaska.