Miata List Archive

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Mail From: fschussler (Fred H Schussler)

Hi All, What model year Miata did octane requirement change to 92 octane? Thanks and cheers.
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Mail From: john.freas (John Freas)

Previously on Gasoline Octane Requirements, Fred H Schussler <
fschussler at sbcglobal.net> said...

Hi All, What model year Miata did octane requirement change to 92 octane?
> Thanks and cheers.


The first time it was mentioned was with the '99/NB cars. I'm unclear as to
whether it was a requirement at the time or only a recommendation. My
understanding is that the '01 and later cars only list it as a *
recommendation*. The cars have a knock sensor and will roll back the timing
if there is any knock detected, the result is you *may* lose some
performance and possibly some efficiency but with the benefit of lower cost
fuel. There was a fairly lengthy debate here very recently on the relative
merits of using higher octane in the newer cars, if you do an archive search
for December you should find it pretty easily.

-John
------------------------------
John Freas <%20john7690 at comcast.net>
1992 *YELLOW* "Sting<john.freas.home.comcast.net/pix/sting/sting.html>
"
1995 Black R Package
"Spike<geocities.com/clash_girl/Spike_Scrapbook.html>
"
Elizabethtown, Indiana
- Standard Disclaimer
<john.freas.home.comcast.net/disclaimer.html>Applies -
Team LS1,2, SP, the Gap...
I love my Miata
girl<geocities.com/clash_girl/Spike_Scrapbook.html>and my
Miata Baby
"I have no idea what those dimple things on the windshield frame are for."
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Mail From: the.jack (the.jack)

-----Original Message-----
On Behalf Of John Freas
Subject: Re: [Miata] Gasoline Octane Requirements

<SNIP>There was a fairly lengthy debate here very recently on the
relative merits of using higher octane in the newer cars, if you do an
archive search for December you should find it pretty easily.

-----Response-----

What... We don't want to rehash that old chestnut? Ha ha.
:P

the.jack / Chris C.
99 Miata 5-sp Heliums w/ R-S2s