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- Path: sparky!uunet!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: <29392@oasys.dt.navy.mil>
- Date: 7 Jan 93 19:29:06 GMT
- References: <4278.88.uupcb@chaos.lrk.ar.us> <x4yr19_@dixie.com>
- Reply-To: bense@oasys.dt.navy.mil (Ronald Bense)
- Organization: Carderock Division, NSWC, Bethesda, MD
- Lines: 35
-
- In rec.autos.tech, jgd@dixie.com (John De Armond) writes:
-
- >Methyl teriary butyl ether, CH3*O*C4H9, a very high octane fuel that
-
- Now here's a question for the chemistry majors, or perhaps a full-fledged
- chemist. How does a chemical that only supplies 1 O atom, but requires
- as many as 10 O atoms for a fully combusted (H2O and CO2) product yield
- a lower amount of pollutants at the end? Or are we just switching the
- types of pollutants around? (Forgive me if this has been answered previously,
- but, like so many, I just tuned in.)
-
- >These oxygenates have been in common use for years as a lead-free
- >octane booster for premium no-lead gas. The EPA has simply mandated
- >more.
-
- Umm, from an inside source from a major oil company, nobody likes the
- new additives. It makes it hard to ship, it cannot be put out if it
- catches on fire, it causes cancer in lab rats, and in general appears
- to have no good qualities other than older cars get somewhat improved
- emissions. (After all, how can you improve on something that reads "0"
- like mine did in one category, and less than 5% of the allowables in
- the others?:) Oh, another "good" quality is that the oil companies get
- to charge more per gallon, and get to sell more of it.
-
- >This stuff is really nifty for us hotrodders. Given the engine is
- >rejetted/calibrated for the extra oxygen, it will make more power.
-
- 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])
-
-
- Ron
-