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  "path": "/threads/ethenol.2634352/",
  "publishedAt": "2026-04-08T22:30:45.000Z",
  "site": "https://forums.anandtech.com",
  "tags": [
    "The Garage",
    "Read more"
  ],
  "textContent": "Regular gas around here is 10% corn. Understand Trump's little adventure in Iran is bringing on mandatory 15% corn gas, starting in May.\n\nFor my small engines, I buy corn-free gas and have 20 gallons on hand, primarily for my generator. I pre-treat with StaBil and rotate it every 6 months by putting it in the car and refilling the can.\n\nWe don't drive much, so gas sits in the car for a while before refills with fresh gas, which is when ethanol does its work, even though newer cars are designed for some corn in their system.\n\nBite the bullet and just run corn-free? Does the premium grade have ethanol? If premium doesn't have ethanol, buy the mid-grade, which I understand is blended at the pump by delivering regular and premium, which should effectively lower the corn percentage.\n\nYou can't run your car's fuel system dry like I do with small engines, so the corn just sits there attracting water.\n\nMy other ride is a 2000 VW TDI that gets over 55MPG on the road, so even with the...\n\nRead more",
  "title": "Ethenol?"
}