I have a stock 08 Wrangler with 25k on it. Has never lost a drop of oil between oil changes. Brother inlaw comes to me wanting to borrow my jeep to drive to Iowa from Oklahoma. The oil change is only 1500 miles toward the next but he goes to have it changed before the trip and it was down to a little over a quart in it. No leaks , no smoking and no loss of power at all. Where did it go all of a sudden. Is it possible they shorted it on the the fill on the last change (WalMart). I know I should have changed it myself or should have checked the level after the last change so don't blaze me to death. I have a life time warranty so it is going in to be checked when he gets back with it. A friend told me his dads 07 unlimited started using oil also. Anyone else heard of this happening.