2008 Jeep Wrangler Owner's Manual - Page 401

400 MAINTAINING YOUR VEHICLE Brake and Power Steering System Hoses When servicing the vehicle for scheduled maintenance, inspect surface of hoses for evidence of heat and mechanical damage. Hard and brittle rubber, cracking, tears, cuts, abrasion, and excessive swelling suggest deterioration of the rubber. Particular attention should be made to examining those hose surfaces nearest to high heat sources, such as the exhaust manifold. Inspect all hose clamps and couplings to make sure they are secure and no leaks are present. NOTE: Inspection of brake hoses should be done whenever the brake system is serviced and every engine oil change. WARNING! Worn brake hoses can burst and cause brake failure. You could have an accident. If you see any signs of cracking, scuffing, or worn spots, have the brake hoses replaced immediately. Brake Master Cylinder - Brake Fluid Level Check Refer to Fluids, Lubricants, and Genuine Parts in this section for the correct fluid type. WARNING! Use of a brake fluid that may have a lower initial boiling point, or is unidentified as to specification, may result in sudden brake failure during hard prolonged braking. You could have an accident.