[SentraSE-R]

Found it in pp 15-16 of this thread.

02-20-2012, 05:17 PM
Thanks very much for not giving up on me!I am revisiting the issue after reading this article, which states "April 23, 2009 The Guardian has reported on new research showing that in one year, a single large container ship can emit cancer and asthma-causing pollutants equivalent to that of 50 million cars," and "15 of the world's biggest ships may now emit as much pollution as all the world's 760m cars." Certainly my paltry 226 gallons of gasoline burned last year and 11,650 miles driven aren't even a hiccup of a giant cargo ship's pollution: 1/50,000,000 of that cargo ship's pollution, if it runs its engines 24/7, is .63 seconds. It emits more in .63 seconds,\ than the average car does in a year. Even if my car emits 75X more HCs than the average car, its annual HC output isn't a minute of the cargo ship's annual pollution.If someone could quantify the claims about the amount of air pollution the refineries produce to produce my 226 gallons of gasoline, or other examples of how insignificant my personal pollution is, I'm teetering on the brink of coming back.I'm still trying to wrap my mind around how much of a problem 80 million pounds of unreported volatile organic compounds is. If my 226 gal. of gasoline = 1356 lbs of VOC, that's one thing, but if we're talking about those 226 gallons equaling 25,764 lbs of CO2, with 40 million cars in CA, 80 million pounds isn't that much.

02-20-2012, 09:06 PM
Thanks Mark y Carlos,I found a fairly comprehensive analysis here. There are 67 pages in the transportation chapter, and the Transportation Life Cycle Analysis proves that diesel is ~20% less costly in life cycle costs. Unfortunately, I couldn't find a separation of production/shipping cost (upstream cost) v. on-road cost (downstream cost) in the life cycle analysis.Just a WAG tells me you LCA guys are right. If we're employing fleets of supertankers to import millions of barrels of crude oil from the middle east annually, what is the cost? 160 million bbls/yr from Saudi Arabia alone = >160 shiploads X 6000 miles each way (at 20 mph X 24 hrs/day) X 25 days RT each. That's 4000 days of supertanker operation, or 10.95 supertankers' annual pollution - as much as 547 million cars would produce in that same year. Add other middle east exporters we buy from, and it's easy to see transportation pollution just for middle east crude exceeding all our US car-produced pollution.

05-11-2012, 07:06 AM
Time for an update. I quit clean hypermiling at the end of April, after completing a 3664 mile round-trip to Texas with a non-hypermiler. We set the cruise control to 60 mph, but did no more. Sum total of my clean hypermiling was 6600 miles at 43.6 mpg, about a 6 mpg penalty for not shutting the engine off.I haven't updated my mileage logs, but I'm averaging 50.1 mpg on my current 1300 mile trip to New Mexico, v. 41.1 mpg on the 3664 RT to Tx. 9 mpg for just P&G - I'll take it.