• Too Hot to Handle

    Too Hot to Handle: High Exhaust System Temperature Lamp When a Diesel Particulate Filter regeneration process begins, the High Exhaust System Temperature HEST lamp illuminates and exhaust gas temperature may reach 1500 degrees F. That’s hot enough to ignite and/or melt materials — and burn people. The main function of the HEST lamp is to alert the […]

  • Hino High Voltage!

    Hino High Voltage! Need to service a Hino hybrid? Some special care is needed. The battery used in the Hino 195h COE consists of 40 modules connected in series. Each module has six cells, each producing 1.2 volts for a total of 7.2 volts per module. Total battery voltage for the 195h is 288 volts. A service plug […]

  • Cabin Air Filters Help You Breathe Easy

    Cabin Air Filters Help You Breathe Easy Work trucks are often exposed to extremely dusty operating conditions. However, owners of newer trucks may have noticed that the air conditioning system seems to do a great job at keeping the dust out of the cab. There’s a good reason for the cleaner air in the cab, […]

  • Picking the Right Oil for Natural Gas Engines

    Picking the Right Oil for Natural Gas Engines Did you know that natural gas engines require oils with different properties than diesel engine oil? Using diesel engine oil in a natural gas engine will cause valve torching, piston scuffing and a reduction of spark plug life. In other words, a whole lot of bad stuff. Oils […]

  • All Puffed Up!

    Are Your Tires All Puffed Up? Having the correct tire inflation can be a tricky business. Overinflating a tire dramatically reduces its contact patch. Under inflation increases its contact patch which increases rolling resistance. And fluctuations in temperature can cause the tire tread patch to change, resulting in irregular tire wear and changes in traction. It’s the air inside […]

  • Print the Spec Tables You Need

    Tractor-Trailer.net or Medium-Truck.net How to Print the Spec Tables You Need Sometimes, all you really need to complete a job are the specifications. However, trying to remember the specifications on the way back to the job after looking them up can be a challenge. Was that torque specification 20 ft. lbs. or 20 in. lbs.? Granted, you […]

  • What’s an “N” Engine?

    What’s an “N” Engine? At the NTEA Work Truck Show in Indianapolis this past March, Navistar announced that their new engines equipped with DPF and SCR systems will now be referred to as “N” series engines.   The MaxxForce 13, which now uses the new emission systems, is now designated as the “N13” engine and is […]

  • What's an "N" Engine?

    What’s an “N” Engine? At the NTEA Work Truck Show in Indianapolis this past March, Navistar announced that their new engines equipped with DPF and SCR systems will now be referred to as “N” series engines.   The MaxxForce 13, which now uses the new emission systems, is now designated as the “N13” engine and is […]

  • How to Chat with Mitchell 1

    How to Chat with Mitchell 1 Have you ever wished you could have a quick chat with someone at Mitchell 1? We understand how busy you are in your auto repair shop, and that sometimes it’s just not possible to stop to make a phone call or send an email in the middle of your […]

  • Which Exhaust is Cleaner: New Diesel or Gasoline?

    Which Exhaust is Cleaner: New Diesel or Gasoline? Historically, diesel engines were hands down dirtier than gasoline engines. Not so with today’s cleaner burning diesel engines. Improvements in technology have decreased diesel emissions greatly. In addition, diesel vehicles are equipped with diesel particulate filters which scour the exhaust, sending a clean stream of odorless gas […]