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- Path: sparky!uunet!ogicse!emory!wupost!darwin.sura.net!cos!cos!bob1
- From: bob1@cos.com (Bob Blackshaw)
- Newsgroups: rec.autos
- Subject: Re: Ethanol blended gasoline
- Message-ID: <bob1.721081430@cos>
- Date: 6 Nov 92 20:23:50 GMT
- Article-I.D.: cos.bob1.721081430
- References: <etc.> <bob1.720901984@cos> <1992Nov4.195708.29977@erg.sri.com> <1992Nov6.002628.4960@newsgate.sps.mot.com>
- Distribution: world
- Organization: Corporation for Open Systems
- Lines: 57
-
- In <1992Nov6.002628.4960@newsgate.sps.mot.com> mark@wdcwdc.sps.mot.com (Mark Shaw) writes:
-
- >In article <1992Nov4.195708.29977@erg.sri.com>, rat@erg.sri.com (Ray Trent) writes:
- >|> In the referenced article, bob1@cos.com (Bob Blackshaw) writes:
- >|> >it not cutting pollution. It seems to me that the oxygen sensor sees
- >|> >a higher oxygen content and so calls for a richer mixture, hence the
- >|> >loss in mileage. Whether the final result is less CO I will soon know
- >|>
- >|> Although this whole thing sounds like a scam to me too, remember that
- >|> the majority of pollution comes from vehicles that are old enough that
- >|> they probably don't *have* oxygen sensors.
- >|>
- >|> Whether or not an oxygen sensor would detect the "oxygenated" fuel in
- >|> question is another matter.
- >|>
- >|> Also note that if, as the Subject implies, we are talking about
- >|> Ethanol blended gasoline, the decreased efficiency may simply be due
- >|> to the lower energy content of ethanol vs. gasoline (primary hexane if
- >|> I remember correctly). The "emissions" may or may not go up, depending
- >|> on what you consider "emissions".
-
- >Most oxygenated fuel campaigns are aimed at the older cars (usually pre-1982)
- >which do not have closed-loop fuel control. The local emissions regulation
- >office has essentially admitted that it has little effect on the emissions
- >from the newer cars, but it can reduce CO from an older uncontrolled car by
- >as much as 20%.
-
- OK, but if my guess [I'm not an automotive engineer] about the closed loop
- EFI systems is correct, will the makers come up with new ROMs for the ECU?
- I'd pay a reasonable price to get my mileage back up. This am my guage was
- at less than half and the trip meter at 202 miles. The trip meter used to
- hit 250-270 at the halfway mark. That is more than a slight loss in gas
- mileage. Result is we will import more oil.
-
- On several visits to The Netherlands (which is why I changed the distribution)
- it seemed almost every station had a LNG (Liquified Natural Gas) pump and
- many cars ran on LNG. All I ever hear is that we are up to our ears in
- natural gas (especially this last few months :-) ), yet we don't seem
- to want to consider it as an alternative fuel - what gives? From all
- the articles I've read LNG is cleaner both for the environment and for
- the engine internals. I've heard about fear of explosion in accidents,
- but documentaries I've seen show one big flash, whereas gasoline is
- more like a napalm attack - which is worse?
-
- I believe there are propane conversion kits for some engines, but
- where to fill up? I have enough problems with my gas barbeque.
-
- New cars would be nice, trouble is the prices go up faster than our
- salaries :-(.
-
-
- >The problem with the alcohol blend is that it also increases the formaldehyde
- >emissions, which currently have no offical limits (despite being known
- >carcinegens). They are also more likely to cause problems for older cars
- >with carbureators and dirty fuel systems.
-
- >Mark
-