The OP is missing the point: you are using oil when you shouldn’t be, oil changes are the last thing you need to do, you need to find out why you are using all this oil.
Did somebody look at your spark plugs to see if they are coated with oil? Do a compression test! You can have piston rings that went bad, valve guides leaking, or a number of other issues.
Take your car in to a mechanic and have him look into this.
|