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a poly block has such an efficient combustion chambe it will run on anything... i ran one of my 58s on scrap car gas as much as possible... didnt ping, even with the brown gas... regular gas [87] is fin for just about anything with 9.5:1 and under... worst case knock the timing down a few degrees if it pings and you ultimately want to run cheap gas. modern gas isn't that great for our cars at any octane level... with the advent of "emissions friendly" alcohol enhancement -----Original Message----- From: Ron Waters <ronbo97@xxxxxxxxxxx> To: L-FORWARDLOOK@xxxxxxxxxxxxx Sent: Tue, Jun 30, 2009 8:44 am Subject: [FWDLK] Correct Octane Gas for Our Cars Hi Gang -
I've always used mid-grade octane gasoline for my 58 Plymouth with a 318. Here on the east coast, mid-grade is 89 octane. I was told recently that 87 octane would be fine for this engine. When I questioned this in comparison to the old 89 octane leaded gas that we used to put in our cars, I was told that octane is now calculated differently and, again, the 87 octane would be fine. What do most folks use for small blocks engines like the 318 ? Thanks, Ron ************************************************************* To unsubscribe or set your subscription options, please go to http://lists.psu.edu/cgi-bin/wa?SUBED1=l-forwardlook&A=1 ************************************************************* To unsubscribe or set your subscription options,
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