What are the BTU contents of 87 unleaded gasoline 87E10 89E10 and Premium 91?

Answer 1

The BTU (British Thermal Unit) content of gasoline can vary slightly based on formulation and additives, but generally, 87 octane unleaded gasoline contains about 114,000 BTUs per gallon. E10 blends (like 87E10 and 89E10, which contain 10% ethanol) typically have a slightly lower BTU content, around 111,000 BTUs per gallon due to the ethanol. Premium gasoline (91 octane) generally has a similar BTU content to regular unleaded, around 113,000 to 114,000 BTUs per gallon.