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Old 10-11-2019, 07:27 AM   #22 (permalink)
MeteorGray
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Join Date: Jul 2015
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I wonder if direct-injection gas engines are more efficient enough to justify the addition of particulate filters? Otherwise, why not just go back to indirect injection gas models.

Or, perhaps the direct-injection gas engines don't produce enough particulates to make adding a particulate filter the expensive and disruptive mess that diesels are having to contend with nowadays.
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