I use Bosch Double Platinum with good results, both in economy and power.

Signature
May there always be work for your hands to do;
May your purse always hold a coin or two;
May the sun always shine on your windowpane;
May a rainbow be certain to follow each rain;
May the hand of a friend always be near you;
May God fill your heart with gladness to cheer you.
Have a GREAT DAY, Thanks for the use of your time.
Jim Mc Donald Red "R"
>I have a '92 Black and Tan and need to replace the plugs. When we
> bought the car a little over 3k ago we were told the plugs had just
[quoted text clipped - 7 lines]
> Bill
> http://miata.0catch.com
I believe the Split fire to be a gimmic. Bosch are generally considered
great plugs and platinum is good but I've had several experts tell that
NGK's work best in this (and most) Japanese engines.
Why would you be changing 'nearly new' plugs anyway?
Problem?
Extra cash?
Send it to me!
Chris
92BB&T
> I use Bosch Double Platinum with good results, both in economy and power.
>
[quoted text clipped - 9 lines]
> > Bill
> > http://miata.0catch.com
Larry Gadbois - 28 Sep 2004 22:51 GMT
If your Miata has the original plug wires, be sure to replace them. When
the wires fail, the result can be a damaged coil pack, O2 sensor, and cat
converter.
>I believe the Split fire to be a gimmic. Bosch are generally considered
> great plugs and platinum is good but I've had several experts tell that
[quoted text clipped - 24 lines]
>> > Bill
>> > http://miata.0catch.com
schism - 29 Sep 2004 03:08 GMT
>If your Miata has the original plug wires, be sure to replace them. When
>the wires fail, the result can be a damaged coil pack, O2 sensor, and cat
>converter.
The plug wires are blue and look to be in good shape and I seem to
remember that on the 92 the oem wires were black so I am assumeing
they are newer,but, as with the plugs they are a bit of cheap
insurance.
Bill
http://miata.0catch.com
schism - 29 Sep 2004 03:07 GMT
>I believe the Split fire to be a gimmic. Bosch are generally considered
>great plugs and platinum is good but I've had several experts tell that
[quoted text clipped - 10 lines]
>Chris
>92BB&T
LOL wish it was spare cash. But I get the feeling that the plugs are
not as new as he said they were and lets face it it's cheap insurance.
:)
Bill
http://miata.0catch.com
dookie - 29 Sep 2004 23:56 GMT
i had nothing but bad luck with bosh platinum in my nissan v6. i didn't
want to believe they sucked so bad, and i replaced a lot of other ignition
parts trying to cure misfires under load. then i replaced the plugs with
the same (surely two sets wouldn't both suck). then i put in plain ole' ngk
copper and the truck ran better than it ever had.
my '99 sport gets nothing but ngk copper extended reach (on magnecore
wires), and runs beautifully.
fwiw,
dookie
> I believe the Split fire to be a gimmic. Bosch are generally considered
> great plugs and platinum is good but I've had several experts tell that
[quoted text clipped - 24 lines]
> > > Bill
> > > http://miata.0catch.com