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How do I improve fuel economy safely?
Drive smoothly, plan stops, maintain proper tires, and follow approved speed and equipment practices. Never compromise safety or required maintenance to save fuel.
What is winter diesel treatment?
It addresses cold-weather fuel performance under specified conditions. Use only manufacturer- and carrier-approved products and procedures.
Can I mix any diesel additives together?
No. Compatibility and dosage matter. Ask maintenance and follow approved product instructions rather than experimenting.
Should I top off a tank repeatedly after the nozzle stops?
Follow safe fueling procedures and avoid overfilling. Leave appropriate expansion space and report a nozzle or venting problem.
What if my fuel card is declined?
Park safely, verify the authorized location and limits, and contact the carrier’s fuel support. Do not share card credentials publicly.
How do I prevent fuel theft?
Follow carrier security procedures, inspect suspicious changes, and park in suitable locations. Report suspected theft with facts rather than confronting suspects.
What is DEF?
Diesel exhaust fluid is used by certain emissions systems. It belongs in the designated DEF tank, never the diesel fuel tank.
What if I put DEF in the diesel tank?
Do not start the engine or continue operating. Notify maintenance immediately and arrange professional handling; running the engine can increase damage.
Can diesel fuel go in a DEF tank?
No. Keep the fluids and dispensing equipment separate. If contamination occurs, stop and contact maintenance before operating.
How do I choose the correct fuel?
Use the vehicle manufacturer’s requirements and carrier policy. Check the dispenser label carefully rather than relying on nozzle color alone.