CAT Scale

Paul Abelson

Contributing Technical Editor

Paul Abelson, senior technical consultant, is a longtime contributor to Land Line. He’s a member of the Society of Automotive Engineers and a member of the Technology and Maintenance Council. In 1995, TMC awarded him its Silver Spark Plug award. In 2006, he received the Lifetime Achievement Award from the Truck Writers of North America. Although he’s “retired,” he still makes a popular contribution to Land Line readers with “Maintenance Q and A.”

Maintenance Q&A – July 2019

I have a new T680 with a Paccar MX-13 motor, 500 horsepower, 1,850 lb-ft. For years, I’ve been using 15W-40 oil, because it worked well on all my Kenworths. I’m coming up on my first oil change and people at the dealership are telling me to use 10W-30, but they don’t say why. What do you say and why?

Maintenance Q&A – June 2019

Maintaining your truck isn’t always an easy task. Luckily, Paul Abelson is able to answer some common questions that members have been asking.

Maintainenece Q&A

Brake problems arise when a shoe does not fully disengage after application. That causes continuing friction, causing the drum to heat above the tire rubber’s ignition point.