Eliminating the Myths about Ethanol Blended Gasoline

Ethanol fuel burns cooler than regular gasoline without ethanol when comparing flame temperatures—ethanol’s peak flame temperature is about 3,495°F (1,920°C), while gasoline burns at approximately 3,622°F (2,030°C). However, ethanol produces less energy per unit volume than gasoline, leading to lower heat output overall. In engines, ethanol blends can sometimes cause higher operating temperatures due to leaner air/fuel ratios in older engines, though modern engines adjust for this automatically.                         

The result of the combustion as follows.                             

Ethanol fuel can reduce carbon buildup in cylinders and valves due to its cleaner combustion and solvent properties. Ethanol contains oxygen, promoting more complete fuel oxidation and reducing unburned hydrocarbons, which are a major source of carbon deposits. Additionally, ethanol’s solvent nature helps dissolve existing carbon residues, keeping engine components cleaner over time. However, in older engines or systems not optimized for ethanol, loosened deposits may temporarily cause clogging issues downstream. 

With this scientific information there are still potentially big differences in gasoline and diesel for that matter across the USA.  Gasoline and Diesel fuels are made in a smaller region due to the weight and cost of shipping. Each Refiner has their own methods and goals for the fuels they produce. 

It's best, in my opinion to purchase a name brand premium fuel to make sure your giving your car or truck the best opportunity to perform at it's best and live longer. Using a high quality fuel additive regularly will also help prevent damage from poor quality fuels.