Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL message will come on. Change the engine oil as soon as possible within the next 600 miles (1000 km). It is possible that, if driving under the best conditions, the oil life may not indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at least once a year and at this time the system must be reset.
If the system is ever reset accidentally, change the engine oil at 3000 miles (5000 km) since last oil change.
To reset the CHANGE ENGINE OIL light, do the following:
If the CHANGE ENGINE OIL light comes back on when you start the vehicle, the engine oil life system has not reset. Repeat the procedure.
need help on a 1999 Chevy K3500 pickup with a 7.4 L