Non-Linear relationship..…but it has to be 1500 miles, cause she wasn’t paying attention and drove it almost 3000, and we had to do another oil change and another 1500 miles (no Jeep can’t do math, cause they couldn’t use the volume level and double it for 3000 miles)
Full tank of gas - drive 300 mile - now ¼ tank - should have 100 miles left - but NO - 25 miles and it's on E