You can use your coupon on any type of vehicle. It is good for a conventional oil change which covers the following:
•Oil change includes filling up to 5 quarts of conventional oil
•Lubrication of the chassis if necessary
•Complimentary top off of power steering and windshield washer fluids
•Complimentary tire inflation to recommended PSI
•Complimentary multi-point inspection that includes visual check of: brakes, brake fluid level, air filter, wiper blades, belts, tires, shocks and struts.
*$3.50 shop fee will be applied at the store except in CA, IL, MN and PR
So if your car takes more than 5 quarts of oil would be the only thing you may get charged for, but that is like most oil change places.
Hope this helps,