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Old 05-11-2022, 04:19 PM   #40 (permalink)
Isaac Zachary
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 2,083

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
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Good question.

On a gasoline powered engine with a throttle the EGR makes the charge produce less power since it has less gasoline which in turn allows the throttle to open more to produce the same amout of power again. A more open throttle means less pumping losses.

But in a diesel there is no throttle, so how could EGR in a diesel increase efficiency?
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