Check out www.fueleconomy.gov This site has information about EPA fuel efficiencies and relative polution as gauged by the EPA. Just taking a quick look, the Jetta 1.9 TDI vs Jetta 1.8 T, The TDI emmits 3.4 tons less greenhouse gas (in co2 equiv.) per year, for the same body and transmission. However, the smog forming emissions are much worse for the TDI (and generally for diesels). wade -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of Damon Campbell Sent: Wednesday, October 16, 2002 9:38 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: Turbo Diesel Power and Economy - global eficiency Q?
I am trying to debate the merits between several different engine conversions (although i don't really know why... my 1.9 is running like a champ). My main criteria is not a moderate HP increase (although an extra 15 or so would be great), but rather the reduction of pollution to the world. So this question transcends (a bit) frank's lengthy analysis, although inspired by it. What combinations of fuel and engine produce the least amount of pollutants? In this question, i am including the impacts of actually producing/transporting/etc. the fuel, as well. (i remember someone mentioning this a while back, but can't find it in the archives). How does natural gas, or possibly even fuel cells weigh in to the global-efficiency calc compared to your standard gas and diesel? It sounds like a simple TDi is a viable option for these criteria, but i want to see even *more* numbers! :-) Thanks, -Damon Frank Grunthaner <FrankGRUN@AOL.COM> wrote: And frankly, the highly efficient TDi is probably the most effective engine for the Vanagon. Turbo diesels are impressive, and the TDi technology even more so. Sorry for the soapbox, Frank Grunthaner '84 Westy
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