In the latest family debate over car buying, my 21-year-old son declared, “Mom, you buy the car for the engine.”
I thought about his words as we put together the latest story on Interim Tier 4 emission requirements. The new requirements will be imposed soon on agricultural engines over 174 hp. In spite of all the conveniences and high-tech features on tractors, the engine remains the most important component in the machine. And now they are about to undergo some big changes. ...
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