08-22-2021, 01:58 AM
Most 70's cars will tolerate E10. I had my 71 Mach1 when it first came out mid 70's, and it was a pain, as it plugged the fuel filter 3 times in a week from all the crap it loosened up. Once that was over, never really had an issue. Now if an old car sets very long with E10, it causes lots more trouble. As it deteriorates the rubber lines, seals, styrofoam, and even some plastics, much quicker when not being driven regularly. The manufactures were pretty quick to correct the problems. But that was about the same time fuel injection was starting to come in the picture so carbs, floats, crappy rubber, and the issues from E10 weren't as big a priority anymore. So they / aftermarket, started suppling Brass, or a hard plastic floats, to replace the styrofoam ones. As sometimes the styrofoam floats would absorb fuel, and become heavy causing the carb to flood over. which really screwed things up.
But all in all, other then a few hiccups, E10 hasn't been that big an issue for the most part.
JTS
But all in all, other then a few hiccups, E10 hasn't been that big an issue for the most part.
JTS