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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.

Tips for maintaining factory-installed HVAC.

Tips for spec'ing factory-installed HVAC for your truck.

Podcast 9 of 9 to support the introduction of Meritor WABCO's OnGuard Collision Safety System. There's no substitute for a skilled, alert driver. OnGuard, Meritor WABCO's collision safety system, can give the driver the split second he needs to control his vehicle in an emergency. Here's Jon Morrison, president and general manager of Meritor WABCO. www.meritorwabco.com

Podcast 8 of 9 to support the introduction of Meritor WABCO's OnGuard Collision Safety System. Collision safety systems have a proven track record in Europe and elsewhere, in large part because of WABCO, Meritor WABCO's parent company. Jon Morrison, president and general manager of Meritor WABCO, explains how knowledge gained there helps customers here in North America. www.meritorwabco.com

Podcast 7 of 9 to support the introduction of Meritor WABCO's OnGuard Collision Safety System. You can say that OnGuard, Meritor WABCO's collision safety system, applies reliable, proven vehicle control technologies in a new way. Jon Morrison, president and general manager of Meritor WABCO, talks about why antilock braking is paving the way for active safety systems.

Podcast 6 of 9 to support the introduction of Meritor WABCO's OnGuard Collision Safety System. One of the surprising things about OnGuard, Meritor WABCO's collision safety system, is how straightforward it is in terms of hardware and maintenance. Here's Mark Melletat, manager of marketing and customer support at Meritor WABCO. www.meritorwabco.com

Podcast 5 of 9 to support the introduction of MeritorWABCO's OnGuard Collision Safety System. OnGuard, Meritor WABCO's collision safety system, is the next step in a progression of vehicle control technologies. Alan Korn, director of engineering with Meritor WABCO, talks about the relationship between collision safety systems and other control systems on the vehicle. www.meritorwabco.com

Podcast 4 of 9 to support the introduction of MeritorWABCO's OnGuard Collision Safety System. False alarms are a common complaint about radar-based collision warning systems. OnGuard, Meritor WABCO's collision safety system, uses advanced algorithms to lock onto relevant objects. Alan Korn, director of engineering with Meritor WABCO, explains why precision is so important. www.meritorwabco.com

Podcast 3 of 9 to support the introduction of MeritorWABCO's OnGuard Collision Safety System. OnGuard is an active collision safety system, not a passive system. Alan Korn, director of engineering with Meritor WABCO, explains the difference. www.meritorwabco.com

Podcast 2 of 9 to support the introduction of MeritorWABCO's OnGuard Collision Safety System. One of the great things about OnGuard is how intuitive it is to use, as well as the valuable feedback it can offer the driver. Here's Bryan Murphy, senior project engineer, at Meritor WABCO. www.meritorwabco.com

Podcast 1 of 9 to support the introduction of MeritorWABCO's OnGuard Collision Safety System. One question fleets have about OnGuard is how their drivers will feel about it. Here's Mark Melletat, manager of marketing and customer support at Meritor WABCO. www.meritorwabco.com

There was a time when few people were concerned about brakes on the steer axle because they weren't a regulatory requirement. Today, the steer axle is the focus of a proposal to shorten stopping distances of commercial trucks. (This show originally aired on LandLine Now, XM satellite radio channel 171.)

There are roughly 40 different idle-reduction products available for class-8 commercial trucks today, all promising to power climate control systems and appliances without using the big motor under the hood. But what if you could do all that without running an engine at all? This year, most of the major truck OEMs will release some type of onboard power management system -- good news for truck buyers who want the advantages of engine-off power but not the drawbacks of aftermarket APUs and get-sets. (This show originally aired March 19 on LandLine Now, XM satellite radio channel 171.)

An interview with Enno Jakobson of Challenger Motor Freight on technologies designed to help drivers stay alert on the highway. The show airs this week on LandLine Now, XM radio channel 171.

Tire manufacturers are constantly looking for ways to minimize rolling resistance, the drag effect that tires have on your truck. The simplest approach is to use a shallower depth of tread. Following the rollout of a new line of fuel efficient tires, Donn Kramer of Goodyear explains how new compounds and tread designs mean you don't have to compromise tire life for the sake of fuel economy. Time: 7:31; size: 6.9 Mb. Theme music is "Under a Sky" by Edie Carey. Exit music is "After the Storm" by Dale Murray.