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submitted 2 weeks ago by [email protected] to c/[email protected]

I figured it was a marketing gimmick to get you to buy 88 and then they would finally raise the price, but it's been years. are they adding extra ethanol or something?

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[-] [email protected] 6 points 2 weeks ago

Yes. 88 Octaine is 15% ethonol instead of 10%.

[-] [email protected] 3 points 2 weeks ago
[-] [email protected] 3 points 1 week ago

If anything, it would make sense to have gasoline with ethanol content in summer because ethanol is more knock-restistant, which you are more prone to if tempereatures are warmer.

[-] [email protected] 1 points 1 week ago

Knock resistance is related to octane and not ethanol content directly I thought

[-] [email protected] 3 points 1 week ago

You are correct. Ethanol does have a higher octane rating though so a blend of gas and ethanol will have a higher octane rating and hence knock resistance.

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this post was submitted on 01 Jul 2024
53 points (93.4% liked)

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