Orange plugs

[Mark #2]

What causes orange plugs?

Pulled the plugs yesterday after the detonation issues, thought I might have rattled some loose.

They were all tight and looked good except they were orange. Any ideas?

Octane boost or 104 race gas?

[Crawford]

I am going to go with the race fuel on that one.

[99WhiteBeast]

Mark,
My reference book indicates "combustion chamber temps have risen suddenly during hard acceleration" :tu:

Recommendation: "consider colder plugs if driving conditions warrant"

[Silver_2000]

I would bet it was the octane boost + race gas combo... My plugs used to turn purple ..

Doug

[blueoval01]

Originally posted by 99WhiteBeast
Mark,
My reference book indicates ........

What book is that, Steve? :confused:

[Silver_2000]

If you want you can come look at mine. I ran the same cocktail of chemicals ....

Ill hand you the tools and even let you use my snap on deep socket

Doug

[1BADTK]

Mine are always Competition Orange, comes form the TORCO ;)

[Sixpipes]

I think my plugs turn orange every Thanksgiving. :p

[L8 APEX]

Competition Orange I like that one:tu: The octane boost additive MMT makes them redish from my experiences.

[Logan]

Damn.... 6 beat me to it.

:)

[Mark #2]

Steve, what book?
Doug, haha very funny.
L8, they were orange, not the MMT red color.