MoGas Tips, Tricks, Concerns, How To

"Bela P. Havasreti" wrote in message
news
Perhaps a more useful comparison would be how much
lead is/was in 80/87 vs 100LL?

Those of use with older, low compression engines that were designed
to run on 80/87 may be introducing 4 times the amount of lead into our
combustion chambers by running 100LL than the original designers had
intended for.

80/87 has a maximum of 0.5 grams of lead per US gallon while 100LL has
a maximum of 2.0 grams of lead per US gallon. Unleaded Mogas is...
well... Unleaded!

In reading about this somewhere (AvWeb? EAA?) I recall words to the
effect that the refineries can get up to about 97 octane without any
lead, and they only add as much in to get to (or slightly exceed) the
100 octane rating.

This one: http://www.avweb.com/news/columns/182149-1.html

On Thu, 11 May 2006 19:01:16 -0700, "Matt Barrow"
wrote:


"Bela P. Havasreti" wrote in message
news
Perhaps a more useful comparison would be how much
lead is/was in 80/87 vs 100LL?

Those of use with older, low compression engines that were designed
to run on 80/87 may be introducing 4 times the amount of lead into our
combustion chambers by running 100LL than the original designers had
intended for.

80/87 has a maximum of 0.5 grams of lead per US gallon while 100LL has
a maximum of 2.0 grams of lead per US gallon. Unleaded Mogas is...
well... Unleaded!

In reading about this somewhere (AvWeb? EAA?) I recall words to the
effect that the refineries can get up to about 97 octane without any
lead, and they only add as much in to get to (or slightly exceed) the
100 octane rating.

This one: http://www.avweb.com/news/columns/182149-1.html

That's it! Thanks for the link (bookmarked it this time).

Bela P. Havasreti

"Bela P. Havasreti" wrote in message
...
In reading about this somewhere (AvWeb? EAA?) I recall words to the
effect that the refineries can get up to about 97 octane without any
lead, and they only add as much in to get to (or slightly exceed) the
100 octane rating.

This one: http://www.avweb.com/news/columns/182149-1.html

That's it! Thanks for the link (bookmarked it this time).

Most welcome!!

In another article, Deakin was talking about GAMI running a 375HP Lycoming
540 (the one most prone to detonation) on unleaded 95 octane gas on their
test-stand with their experimental PRISM system with nary a burp. AIR,
they've run TNIO-550's on mogas with the PRISM system, too.

Unfortunately, they're about three years overdue for their hoped for STC.

"Bela P. Havasreti" wrote in message
...

In reading about this somewhere (AvWeb? EAA?) I recall words to the
effect that the refineries can get up to about 97 octane without any
lead, and they only add as much in to get to (or slightly exceed) the
100 octane rating.

This one: http://www.avweb.com/news/columns/182149-1.html

That's it! Thanks for the link (bookmarked it this time).

Hell, pop over to "Printer Friendly Page" and save it as a MHT file to your
hard drive (if using Windows Exploder).


--
Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO