A method and system of determining a maximum oil change limit for an engine considering the engine operating environment and location is provided. An engine location indicator is generated in response to a trigger, using a locating device in communication with a controller. The locating device may include a global positioning system (GPS) receiver. The engine may be an internal combustion engine on a vehicle configured as one of a hybrid vehicle and an extended range electric vehicle. The trigger may be one of a calendar time, a key-on event, an oil change event, and a signal provided by the controller. The controller may generate the maximum oil change limit of the engine using one or more oil change indices, each defined by the engine location and/or time in location. The maximum oil change limit and/or an oil change limit alert may be provided as an output of the controller.