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cRiPpLe_rOoStEr · 07-10-2022, 02:32 AM

Rule of thumb used to be that colder plugs were better suited to higher-octane fuels, boost and higher compression ratio. Since you plan to use 87-octane gas, going with hotter ones may fare well.

07-10-2022, 02:32 AM	#4 (permalink)
cRiPpLe_rOoStEr It's all about Diesel Join Date: Oct 2012 Location: Porto Alegre, Rio Grande do Sul, Brazil Posts: 13,042 Thanks: 0 Thanked 1,723 Times in 1,537 Posts	Rule of thumb used to be that colder plugs were better suited to higher-octane fuels, boost and higher compression ratio. Since you plan to use 87-octane gas, going with hotter ones may fare well.