Yeah sometimes mine has come on as early as 35 miles left, and as low as 15 miles left on distance calculations.As far as the light it will depend. My light comes on when I still have 5 gallons of fuel left but that is due to the size of my tires being larger than stock. On average though it should be about a gallon or 2 left when it comes on. Enough to get to a gas station and fill back up.
Comparison chart years. 21.1 gal. for our '08's gas; 22 gal for CRD. Jeep Grand Cherokee WK - 2005-2008 Key Features Comparison ChartAll the same fuel tank.
I believe 21.1 gallons is the listed capacity. No hard and fast rule as to when the light comes on (from what I have seen). I think it is related to the distance to empty calculated, and not the total fuel in the tank. Most people say between 2 and 4 gallons remaining......
Excellent. Thank you!Comparison chart years. 21.1 gal. for our '08's gas; 22 gal for CRD. Jeep Grand Cherokee WK - 2005-2008 Key Features Comparison Chart
Low Fuel Light sets at 11% capacity (by the '08 WK FSM).