2011 Suzuki Grand Vitara Owner's Manual - Page 266

Engine Coolant: 1, 2 Windshield Washer Fluid: 3 INSPECTION AND MAINTENANCE Gear Oil Specified Gear Oil 1.0 - 1.1 mm (0.039 - 0.043 in.) When replacing gear oil, use gear oil with the appropriate viscosity and grade as shown in the charts below. We highly recommend you use SAE 75W-90 gear oil (SAE 80W-90 for front differential oil, rear differential oil and transfer gear oil). Transmission/Extension case 65D434 80G093 You should inspect spark plugs periodically for carbon deposits. When carbon accumulates on a spark plug, a strong spark may not be produced. Remove carbon deposits with a wire or pin and adjust the spark plug gap. To access the spark plugs: 1) Remove the engine cover. 2) Disconnect the coupler (1) while pushing the release lever. 3) Remove the bolt. 4) Pull the ignition coil out. CAUTION When replacing spark plugs, you should use the brand and type specified for your vehicle. For the specified plugs, refer to the "SPECIFICATIONS" section at the end of this book. If you wish to use a brand of spark plug other than the specified plugs, consult your SUZUKI dealer. 54G095 Differential/Transfer case 65D594 7-17 79K21-03E