James48843
Well-known member
http://articles.latimes.com/1991-08-30/business/fi-1539_1_nitrogen-oxide
The same basic engine--without the lean-burn feature--will be offered in the 1992 Civic this fall in California. It will be about 8% less fuel efficient than the version sold in the other 49 states, Honda said.
http://www.autoshop101.com/forms/h55.pdf
go to page 9. if the air/fuel ratio is leaned out to 17.5:1 to 19:1 at hwy speeds which is very easy to do with the engine computer, at least 10 mpg would be saved and hc co and nox would still be low.
why does the EPA insist on 14.7:1 and cause millions of gallons of fuel to be wasted everyday? The Latimes link is a prime example.
Good question. Why does EPA use 14.7: 1 and not use 18:1, when it COULD rewrite the reg for that.
Why don't you call the EPA and ask?
The engineer responsible is Link Wehrly. His phone number is (734) 214-4286, and his desk is about two miles from where I am sitting at this moment. Call him up and ask him.
By the way- he's a federal employee too, and probably has a nice TSP account. Perhaps we should get him to join us here.