Under The Hood

21  -  29  of  29

June 16, 2010

Running Cool: Maintaining Your Cooling System

Twenty years ago, putting coolant in a heavy truck could be a bit like a kid's chemistry experiment. You started out with silicate-based coolant/antifreeze designed for cars and light trucks

February 9, 2010

Make Supplemental Filters Pay

Cleanliness is next to godliness, so some truck operators change motor oil religiously according to manufacturers' recommendations. Others extend drain intervals but use supplemental filtration and oil analysis to do it safely and make sure the oil stays clea

December 28, 2009

Where Does Underhood Heat Go? Into the Cab

As engineers, one of our biggest challenges is how to deal with underhood heat. Because of aerodynamics and other styling changes, the engine box on trucks is smaller and more densely packed than it ever has been

October 4, 2009

Making Short Work of Corrosion

One of the main concerns in front of the Technology and Maintenance Council of the American Trucking Association is corrosion caused by road chemicals. The problem has escalated in recent years with the adoption of magnesium and calcium chloride

October 1, 2009

EGR Engines and Oil Control

One of the planks in Caterpillar's argument for its Acert technology was that no particulate-heavy exhaust was recirculated into the inlet, as is the case with other exhaust gas recirculation technologies

September 15, 2009

The Right Oil Now: Improving Your Engine Lubrication Program

The recession has everyone pinching pennies. Close management of your engine lubrication program can offer cost savings in a number of areas - if done properly

August 10, 2009

Column: Keep Your Cool

I like cool old cars. I happen to have a couple of extra-cool, extra-old cars in a Jensen Interceptor II and a Porsche 928. But while they are cool, they don't cool very well. However, I have discovered Evans Cooling'

June 10, 2009

Cool It! Cooling system maintenance

We demand much of our cooling systems these days. Not only do they dissipate the heat generated by combustion within the block, but chances are they also cool large volumes of really hot exhaust ga

May 26, 2009

Diesel Particulate Filters

Detroit Diesel's Chuck Blake offers an interesting perspective on diesel particulate filters. He says he owns them, even though every truck owner who has purchased a Detroit engine on every 2008 model-year Freightliner product has paid for them

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