Re: Proper gas for 374 engine

Posted by 55PackardGuy On 2011/2/27 15:22:57
For once, maybe I'm too you to remember something that others do. Feels kind of good! I wasn't driving until about 1972. JUST in time to get some high speed practice before the freeway speeds dropped to 55. I took full advantage of it. My '65 Electra cruised just right at 85, right where the gas pedal told me the mechanical secondaries would start opening.

Leaded gas was around for quite some time into the late seventies, as many cars still used it. The filler neck of the catalytic converter equipped cars of course had the restrictor that would not take the nozzle from the "regular" pump.

I don't remember what the octane was, but we always filled the high-comp cars from my dad's Phillips 66 "Flight Fuel" pump. BTW, no matter what you might hear otherwise, "66" in the Phillips petroleum name was for the octane rating. 66 was considered high at the time of low comp cars. I wouldn't be surprised if that's where Union got the "76" name, but don't know for sure. My dad sold Phillips products for 35 years, so I'm sure he had the story about "66" right by the time he retired.

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