Kind of a dumb question but I gotta ask anyway. I have a 1971 Mercury Comet, is there a possibility that it took leaded gasoline not unleaded. I remember my dad having a 1974 Ford F250 that took leaded gas and he had to put a lead substute into it so it would run right. Is this a possibility since there isn't anything in the car that says unleaded fuel only or anything of that sort. Just a thought. Thanks guys.
Yours didn't require unleaded, your filler neck would have a spacer with a small filler hole to allow only an " unleaded nozzle" to be put in the filler neck if it did. unleaded only cars did that because leaded gas in an unleaded only car will clog the catalytic converter and not allow exaust to exit. when they used to sell "regular" gas and "unleaded gas, the regular gas pumps had thicker nozzles than the unleaded ones. Now of course everything is " unleaded. As far as lead subsitute , my understanding is the leaded gas had lubricating qualities that helped prolong engine life, but not dramatically in short you can run unleaded in your car and you don't need the lead substitute,
Thanks, I was just curious about that. I didn't think it would make a difference but just a thought. Thank you.
