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New and used are pretty simple concepts to grasp. But remanufactured and rebuilt? When it comes to heavy-duty replacement parts, they're two different things altogether. Todd Kindem from ArvinMeritor's Commercial Vehicle Aftermarket group explains. Time: 3:35; size: 1.6 MB. Intro music is Edie Carey's "Under a Sky"; exit music is Amplifico's "Flutter." Both are courtesy the Podsafe Music Network.

Even a truck that’s sitting for weeks or months needs regular maintenance. Some items are obvious, like the batteries and tires. Others aren't, like the A/C system. But flipping on the air conditioner or defroster will lubricate seals in the compressor, reducing the risk of leaks and costly A/C repairs. Frank Burrow, manager of product support at Red Dot Corp., explains. Time: 3:33; size: 3.3 Mb. Theme music is "Under a Sky" by Edie Carey.

Temperature has a big impact on tires, and specifically, tire pressure. Haul from 90 degrees and sunny to 10 below and nasty and your tires will lose roughly 10 psi. That's why Tim Miller from Goodyear says you should check your inflation pressures more often in the winter. Plus: How to calculate your optimum inflation pressure. Time: 4:20; size: 4 Mb. Theme music is "Under a Sky" by Edie Carey. Exit music is "After the Storm" by Dale Murray.

Keeping your air system clean and moisture-free is one of those quick and easy tasks almost anyone can do. Drain your tanks daily, watch for unusual amounts of moisture, and when necessary, replace your air dryer with one that meets the OE spec. You’ll be repaid with more predictable braking system performance. Not a bad return for an investment of a few minutes each day.

Tim Miller from Goodyear on what every owner-operator should know about tire maintenance and roadside assistance.