Once again I will report on a thread that has appeared many times on the Model T Ford forum: When Model T's were built, no lead was added to the gasoline. That came later. Theerefore, using modern lead-free gas should be no problem. I have no idea when lead was added to gasoline, but I would bet it was in the late '40's or early '50's. So, if your tractor is older than that, the same would be true. On the other hand, today's gas burns infinitely better than gas from "the day." It undoubtedly burns much hotter. And it is much farther from oily kerosene than gas in "the day." For that reason, most Model T drivers report on that other Forum that they do one of two things. One, they use today's gas without a second thought. Two, they use today's gas with the addition of Marvel Mystery Oil. We've even come up with a highly scientific measurement of how much MMO to use. It's called a "glug." Most agree that two glugs in a 10 gallon tank is the right amount. Of course, this measurement was devised when MMO came in a metal can, so we haven't finished the highly technical tests required to determine the equivalent in the more recent plastic jugs. In case you think I'm kidding, there are several of us who pour new MMO into old metal cans, just so they get consistency. See, we Model T drivers are as nutty as drivers of old Ford tractors. And we have just about as much fun. Me, I have both - and I'm retired - so I smile most of the time!
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