Re: Proper gas for 374 engine

Posted by Rusty O\'Toole On 2011/2/26 0:54:30

I can remember, just, when Sunoco sold 103 octane Blue Sunoco gas. This was about the time I started driving in the late sixties. It cost 50 to 55 cents a gallon when other lower octane brands were 45 to 50.

In the early 70s leaded gas was banned or at least, the lead content reduced and 103 octane gas was one of the first casualties.