PURCHASE: A participating Castrol® oil change at a service center.

RECEIVE: By mail, a check in the qualified savings amount made payable to your oil change service center for use on your next Castrol oil change service. $10 for Castrol® GTX® High Mileage, $10 for Castrol® GTX® MAGNATEC®, $10 for Castrol® VECTON®, $10 for Castrol® CRB® Multi or $15 for Castrol® EDGE®.