Back in the 1970s when we switched to unleaded gas, what did the vehicles that ran on leaded gas do?
Did they have to track down leaded gas? Did they just use unleaded? Did they suffer engine knock?
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Did they have to track down leaded gas? Did they just use unleaded? Did they suffer engine knock?
Gas stations dispensed both, like current gas and diesel.
You could also buy lead additives, more for an emergency situation than a permit solution.
Like this? https://c1.staticflickr.com/5/4104/4987129907_1bd5773781_b.jpg
Yup!