https://www.truck-manuals.net/mack/ 136 OPERATION GOOD DRIVING HABITS Weight Ratings Do not overload the vehicle. The gross vehicle weight rating (GVWR) and gross axle weight ratings (GAWR’s) for a given model may vary due to the tires, wheels/rims, suspensions, axles and/or frame of a specific vehicle. For safety and durability reasons, do not exceed the GVWR and GAWR’s listed on your vehicle’s Safety Certification Label.
Instruments Glance at the instruments frequently. When problems develop, take prompt steps to correct them.
Shutting Down the Engine After a hard run, allow the engine to idle three minutes before shutdown to stabilize the temperature of all engine parts. Quick shutdowns can cause engine damage and prevent the turbocharger from being properly lubricated. For additional options, see “Shutting Down the Engine”, page 141.
General Observation Make it a habit at stops to walk around your truck and look for fuel, oil and coolant leaks. Also check the condition of tires, wheel nuts, springs and lights. Stop trouble before it stops you!
