Ok so on my b18c i get a little white smoke when i accel or rev it up, changed the oil 3 days ago, put in mobil 1 filter and 10w30 synthetic oil, yesterday i went with a friend to pick up a car, and it was a 900 mile round trip ride, we cruised it about 80-85 all the way except for a few times where we were doing 120+ testing out his new car, checked the oil last night when we got back and it wasn't registering had to put in about 1.25 quarts to make it good, checked the coolant and it was fine, and no coolant in the motor either, the cloud of smoke isn't a lot but visible, i did notice a few days ago b4 the oil change that the bumper near the exhaust was black from the exhaust. any ideas of what can be wrong, and i plan on driving the car back to california in 6 days, and that is about a 1300 mile drive. please help!!! thanks a lot!