View Single Post
Old 06-30-2022, 02:47 AM   #174 (permalink)
redpoint5
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,735

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - CBR600 - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)

Model Y - '24 Tesla Y LR AWD

Pacifica Hybrid - '21 Chrysler Pacifica Hybrid
90 day: 85.85 mpg (US)
Thanks: 4,315
Thanked 4,467 Times in 3,432 Posts
Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
There were dedicated-ethanol cars in Brazil, yet they weren't so extremely tuned to take the most benefit from ethanol.

NOx and PM have increased on spark-ignition engines precisely due to direct injection becoming more widespread.
My point being, I wonder what efficiency is possible if a major automotive manufacturer went all in on E85. 110 octane is quite good if an engine is tuned for it.

Does ethanol produce NOx like petrol? I'm not familiar with the mechanism that causes it in the first place. Most of air is nitrogen and oxygen. Is it simply heat?
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
The Following 2 Users Say Thank You to redpoint5 For This Useful Post:
pgfpro (07-01-2022), RustyLugNut (07-01-2022)