Originally Posted by
MAGPIE-121
a P3 is ultra hot (hottest OS turbo plug)
a P4 is super hot (cooler than a P3 or equal to a medium OD 97T plug)
Hope this clears it up for U
LOL, thanks, actually the go plugs that came with the go gx series engines last forever. broke the gx engine in and ran 3 gallons on same plug.