I bought my F-150 in January. It left a little puddle of oil everywhere I parked it for about a week. I never could find the leak. Then it suddenly stopped leaking. It has used a about a half quart since the last oil change, about 2000 miles ago. I switched to Penzoil 5-30 in the synthetic flavor. Using a little oil doesn't conern me as long as it isn't a leak or smoking.