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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rpi!gatech!darwin.sura.net!dtix!oasys!bense
- From: bense@oasys.dt.navy.mil (Ron Bense)
- Newsgroups: rec.autos.tech
- Subject: Re: Oxygenated Gasoline and Low MPG (super unleaded?)
- Message-ID: <29443@oasys.dt.navy.mil>
- Date: 8 Jan 93 18:50:59 GMT
- References: <4278.88.uupcb@chaos.lrk.ar.us> <08zr4tg@dixie.com>
- Reply-To: bense@oasys.dt.navy.mil (Ronald Bense)
- Organization: Carderock Division, NSWC, Bethesda, MD
- Lines: 61
-
- In rec.autos.tech, jgd@dixie.com (John De Armond) writes:
- >bense@oasys.dt.navy.mil (Ron Bense) writes:
-
- >Your inside source must be working in the accounting department or something.
-
- Shipping, actually, and to be more specific, the guys that inspect those
- tankers that the oafs continue to ground. I imagine that their data
- is a little more accurate than yours.
-
- >not being able to put out a fire, I've never heard such fairy tails.
-
- That was one of their concerns.
-
- >If you've ever extinguished an alcohol fire, you've extinguished a
- >burning oxygenate. As to cancer, nothing is in the material
- >safety data sheets I have that were current about 6 months ago.
-
- Alcohol requires oxygen to burn. Something like Potassium Perchlorate
- decomposes and yields extra oxygen. That's what I would call an oxygenate,
- but no one has answered that yet, so I'll wait and see what occurs.
-
- >The stuff is not aimed at your new, closed loop car. It is aimed
- >at older cars, particularly those whose engines were tuned a bit
- >rich to work with AIR injection and one way catalysts.
-
- Then just increase emission standards, and make the minimum amount for
- spending in one year at least equal to the price of a catalytic converter.
- Another good one would be to ban the car off the road if it fails to
- meet emmissions 2 years in a row until it does meet them.
-
- >>It is? I've got a fairly well tuned computerized engine that reads the
- >>O2 output in the exhaust and adjusts fuel to match. Ran great in the
- >>mountains or on the plains. It lost at least 10% of its "fuel" economy
- >>when this oxygenated crap came out. (It used to get around 20-25, now
- >>it's more like 17-22, and it is a 2.0L 4 cylinder [turbo])
-
- >Fuel economy has nothing to do with performance. Naturally your mileage
- >would go down as your engine's ECU compensates for the leanness. If you
- >ran pure methanol whose stochiometric ratio is 6:1, your mileage
- >would go through the floor.
-
- 1.) Fuel economy and performance generally go hand in hand, an increase
- in one causes a decrease in the other. Both of mine decreased.
-
- 2.) I believe the specific energy of methanol is lower than gasoline,
- requiring more to be burned for same horsepower, resulting in lower
- fuel economy.
-
- 3.) I base the above on the fact that propane powered cars run about
- 1.8:1 compared to gas in fuel economy, and the knowledge that power
- also drops in these vehicles. (Emissions were said to much better, though.
- Maybe all older cars should be forced to convert to either modern engine
- emissions or propane?)
-
- >As far as public policy goes, oxygenated gas is pretty stupid. As far
- >as hotrodding goes, it's great. Like having just a touch of nitro on
- >tap.
-
- I agree that it's pretty stupid.
-
- Ron
-