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Old 01-31-2012, 11:09 PM   #39 (permalink)
SentraSE-R
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Join Date: Jun 2009
Location: Bay Area, California
Posts: 1,485

Mean Green Toaster Machine - '06 Scion xB
Team Toyota
90 day: 48.92 mpg (US)
Thanks: 56
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Quote:
Originally Posted by Daox View Post
Do you have the results from your last test (before this round)?
Daox, my car's never been smog tested before. New cars get a 5 year exemption from smog testing in CA.

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FWIW, here's how I view my fuel consumption/emissions footprint. My xB has 2008 EPA estimated 26/30/28 city/highway/combined fuel consumption estimates. Since I bought my xb, I've averaged 49.4 mpg for every mile I've driven in it. I've used 590 gallons to drive ~30k miles, saving 450 gallons compared to the average xB driver. I used 55.7% of the average xB's fuel to go the same distance.

But, as seen above, I'm dumping 3-15 times the average hydrocarbons, 4-7 times the NOx, and up to 6 times the CO of the average xB, when my cat is lit, which is almost never, in local driving. Even if I use 55% of the average xB's fuel, it's inescapable logic to me that I'm producing ten times as much air pollution with an unlit cat. Preheating the O2 sensors doesn't fire the cat. I have to run the engine constantly to keep it lit.
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Darrell

Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg

Last edited by SentraSE-R; 01-31-2012 at 11:36 PM..
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