Every gallon of gas sold at the pump contains 10% ethanol & is called E10. Ethanol had replaced 15% of the gasoline sold in this country. 10% was sold as E10 & 5% was sold as E85. On January 1, 2012 the 45 cent tax cut on ethanol was not renewed because the USG needs more tax money. This increased the tax everyone paid at the pump by 5 cents since all gasoline is E10. For E85 users the tax increased by 38 cents per gallon. E85 users switched to E10 gasoline driving up gasoline demand 5% since then. The sudden price spike on the first day of 2012 is the tax hike & the continuing rise is caused by demand increase until the price rises by 38 to 45 cents so E85 use will compete once again holding gas prices in check. Also North Carolina increased their gas tax by 20 cents on the same date.
