Unleaded vs. Premium gas, does it make a differnce?
My father inlaw suggested I run Premium gas when towing the TT. Makes sense but not sure it makes a difference, any thoughts?
Forum Discussion
The old cars ran on leaded fuel and had much higher compression. They benefited the most from higher octane. Some guys would go to the airport to get AV gas for making fast runs.
Partly due to the emergence of air quality standards and the Clean Air Act, cars in the US were detuned in the the 1970s to reduce emissions and increase mileage. Now they don't benefit from higher octane fuel as much as they used to. One of the main impacts of tuners is to advance the timing, which oftenn increases performance and mileage at the expense of increased emissions.
Partly due to the emergence of air quality standards and the Clean Air Act, cars in the US were detuned in the the 1970s to reduce emissions and increase mileage. Now they don't benefit from higher octane fuel as much as they used to. One of the main impacts of tuners is to advance the timing, which oftenn increases performance and mileage at the expense of increased emissions.
