GM Equips More Vehicles With Oil-Change Monitors

General Motors reported that most of its North American vehicles will be fitted with a
computerized monitor that will tell drivers when to change their oil. The GM Oil Life
System, which is already available on Chevrolet Corvettes and some Cadillacs, has been
found to double or triple the interval between oil changes. Vehicle owners are now usually
advised to change their oil about every 3,000 miles, but the system could safely extend the
mileage between oil changes to up to 15,000 miles.


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