Would gas mileage increase if the gas was very hot before it entered the engine? Combustibles burn faster (more efficiently) when they are already close to their kindling points so, instead of the gas line going straight from the gas tank to the engine, would sending the gasoline through a coil of gas line (next to the hot engine) heat the gasoline closer to its kindling point creating better fuel efficiency?
Actually quite the opposite, a cool fuel is better in a automobile. Some times race cars guy’s will put ice packs on there fuel lines at the carbs. This makes fuel molecules more dense and also prevents fuel from boiling which could cause vapor lock. References :
There is a performance engine builder that does exactly that. But other’s feel that "warming" up the fuel is NOT enough – that the fuel must be close to boiling point to make the difference.
So what many cars does (already) is to warm up the incoming air in the winter to give it a better starting behavior.
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The guys above are wrong. They add ice to cool down the AIR not the fuel. Air, if it TOO HOT also degrades performance. Too cold and the the fuel cannot atomize well (the reason why cars has to run rich – extra fuel – when cold).
Raymon is correct, however, there is a reason for this. It’s nothing to do with the gas igniting faster or anything of the sort but rather the capacity of your fuel tank. Namely, the more you fit in the tank, the longer it will last.
Fuel, like most other liquids condenses when chilled and expands when hot. Additionally, when heated, gasoline vapors also expand. Such expansion would take up greater space in your fuel tank and would register as a full tank earlier than if you had cooler gas pumping into a cooler tank. This would leave you inevitably with less gas in a seemingly full tank which would then propel your vehicle a shorter overall distance.
In other words, fuel up when it’s the coolest part of the day. References : Myself and my physics teacher Mr. Rogoway
Would gas mileage increase if the gas was very hot before it entered the engine?
Combustibles burn faster (more efficiently) when they are already close to their kindling points so, instead of the gas line going straight from the gas tank to the engine, would sending the gasoline through a coil of gas line (next to the hot engine) heat the gasoline closer to its kindling point creating better fuel efficiency?
Its just the opposite, cold fuel is better
References :
Actually quite the opposite, a cool fuel is better in a automobile. Some times race cars guy’s will put ice packs on there fuel lines at the carbs. This makes fuel molecules more dense and also prevents fuel from boiling which could cause vapor lock.
References :
There is a performance engine builder that does exactly that. But other’s feel that "warming" up the fuel is NOT enough – that the fuel must be close to boiling point to make the difference.
So what many cars does (already) is to warm up the incoming air in the winter to give it a better starting behavior.
===
The guys above are wrong. They add ice to cool down the AIR not the fuel. Air, if it TOO HOT also degrades performance. Too cold and the the fuel cannot atomize well (the reason why cars has to run rich – extra fuel – when cold).
good Luck…
References :
Raymon is correct, however, there is a reason for this. It’s nothing to do with the gas igniting faster or anything of the sort but rather the capacity of your fuel tank. Namely, the more you fit in the tank, the longer it will last.
Fuel, like most other liquids condenses when chilled and expands when hot. Additionally, when heated, gasoline vapors also expand. Such expansion would take up greater space in your fuel tank and would register as a full tank earlier than if you had cooler gas pumping into a cooler tank. This would leave you inevitably with less gas in a seemingly full tank which would then propel your vehicle a shorter overall distance.
In other words, fuel up when it’s the coolest part of the day.
References :
Myself and my physics teacher Mr. Rogoway