No, the purpose of TCP is to help the engine cope with fuel which is substantially more leaded than that for which it was designed.
Since the 80 octane is the fuel for which your engine was designed (well, okay, maybe 72 or so), tossing TCP in would be a waste of money. Greg At 12:43 PM 9/9/99 +0000, N161LH 3B9 wrote: Should I use TCP if I'm running 80?
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