178 DRIVING AND OPERATINGCautionLow oil levels can damage theengine. If using the vehicle forcompetitive driving, the engine mayuse more oil than it would withnormal use. Check the oil leveloften during competitive driving.Competitive Driving Mode can beselected. See Driver Mode Control0 210.Engine Oil2.0L L4 Turbo Engine (LTG) Only:. Use a 600 W fan in addition to theproduction option V03.. Premium fuel must be used forcompetitive driving to protectagainst engine damage. Colderspark plug ratings should also beused. Consult your dealer.3.6L V6 Non-Turbo (LGX)Engine Only:. 3.6L V6 Non-Turbo Engine (LGX)with Oil Cooler: Confirm the oillevel is at the upper mark thatshows the proper operating rangeon the engine oil dipstick.. 3.6L V6 Non-Turbo Engine (LGX)without Oil Cooler: Do not use fortrack events and competitivedriving.3.6L V6 Twin Turbo Engine(LF4) Only:. The 3.6L V6 twin turbo engine(LF4) requires premium fuel, andcomes standard with a 7 qt sump,integrated oil cooler, and otherpowertrain and powertrain coolingcomponents in preparation fortrack use.Automatic Transmission FluidHave the transmission fluid set to thetrack specific oil level prior to trackusage. Transmission fluid should bechanged after every 15 hours of trackusage. Any transmission level set orchange should be performed at yourdealer.Manual Transmission FluidManual transmission fluid should bechanged after every 15 hours of trackusage.Brake Fluid. Before racing, replace existingbrake fluid with a qualified racingbrake fluid from a sealedcontainer. Brake fluid with a dryboiling point >279 °C (534 °F) isqualified. If racing brake fluid isused, replace it with GM approvedbrake fluid before driving onpublic roads. See RecommendedFluids and Lubricants 0 344.. Do not use silicone-based fluids.If racing brake fluid is in the vehicleand the age of the brake fluid is over amonth old or unknown, replace thebrake fluid between racing/closedtrack driving.
