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Old 12-05-2021, 02:52 PM   #16 (permalink)
Isaac Zachary
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 2,125

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

Prius - '06 Toyota Prius
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Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
SCR relies on DEF. It's the particulate filter that burns fuel in the exhaust while it's on regen.
Older systems used diesel fuel and didn't use any DEF for SCR. Do DEF systems not need any unburnt fuel to do the same?
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