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Just saw this while getting gas. Why is it illegal to get less than 4 gallons? (lemmy.world)

submitted 11 months ago by [email protected] to c/[email protected]

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[–] [email protected] 10 points 11 months ago* (last edited 11 months ago) (1 children)

I think it has to do with how it’s dispensed. If the person before you bought regular fuel, the hose still might have residual fuel from the other kind, meaning you could end up with a different ethanol level than expected. That’s a fire hazard. 4 gallons is probably overkill but better safe than sorry.

Edit: basically, if you accidentally get half a gallon of 10% ethanol fuel and half a gallon of 15% ethanol fuel, you actually have 12.5%.

[–] [email protected] 4 points 11 months ago (1 children)

Has that always been the law and I just never noticed a sticker like that before?

[–] [email protected] 6 points 11 months ago (1 children)

Not sure how long it’s been a law but not a ton of places sell E15. I only ever see it on road trips personally.