Patent ID: 8768599

Claim:
A control system for a vehicle, comprising: a time determination module that determines an engine off time, wherein the engine off time indicates an amount of time that an engine is off; a fuel age determination module that determines an age of fuel in a fuel system of the engine; a driver request generation module that generates a request for a driver of the vehicle to allow the engine to start when one of the engine off time is greater than a predetermined time threshold and the age of the fuel is greater than a predetermined age threshold; and an engine control module that starts the engine when the driver affirms the request, wherein the predetermined age threshold is increased when a low fuel delay is present before a fuel maintenance request is to be initiated, wherein the predetermined age threshold is increased by X days if the vehicle is off when the fuel age equals the predetermined age threshold and the driver subsequently starts the vehicle X days later and default criteria have been met, and wherein the predetermined age threshold is decreased to equal a current fuel age when an engine maintenance request is initiated within a calibratable period of a fuel maintenance request.