If you've ever had a brush with overheating in your Jag--and many of you have--there's one concern even after you've cured your cooling system problem. The Jaguar head gasket is very sensitive to high temperatures. If your vehicle has severely overheated, the Jaguar head gasket could be weak or possibly blown. If you find evidence of oil in your radiator coolant, or your car's oil appears milky or watery, the Jaguar head gasket should definitely be considered suspect. A compression test will tell you with some certainty whether your Jaguar head gasket needs to be replaced. If you find low readings in two cylinders next to each other, the space between them is where your Jaguar cylinder head gasket has failed. The only fix is to remove the head and replace the Jaguar head gasket. If it's any consolation, you won't be the first Jag owner to perform this operation--and you won't be the last. Before you start, though, order your new Jaguar head gasket from us so you have the parts on hand to finish the job. We sell premium Jaguar head gasket sets that provide everything you need to do a full Jaguar head gasket replacement. Our prices are significantly lower than those at your dealership or local parts store--assuming your parts store even has access to the Jaguar head gasket. Fixing your cooling system and installing a high-quality new Jaguar head gasket should have you back on the road again, enjoying your luxury car.