General Motors has issued updated guidance outlining what it considers acceptable normal oil consumption for trucks, sparking renewed debate among owners who say the thresholds make zero sense. GM Sets Official Oil Consumption for Trucks Standards According to General Motors, as reported by GM-trucks.com, all internal combustion engines consume some oil as part of normal operation. The automaker now defines acceptable oil consumption for light-duty trucks and passenger vehicles at one quart every 2,000 miles under standard driving conditions. For heavy-duty trucks with a gross vehicle weight above 8,600 pounds, the measurement shifts to fuel usage rather than mileage. In […] (read full article...)