87 Octane Sport Mileage? - Page 2 - 10th Gen Civic Forum
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post #11 of 14 (permalink) Old 03-18-2019, 10:06 PM
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I have used 94 Octane Chevron in Canada since I bought my Sport/Touring. I drive my car hard and don't get much hwy driving. Getting about 500KM a tank in town. When I have run a hwy trip through the mountains, I got 730km's on a tank. I have not touched regular gas since I bought the car.

2018 Civic Hatchback
Sport/Touring Sonic Grey Pearl
6 Speed MT
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post #12 of 14 (permalink) Old 04-09-2019, 01:44 PM
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I just went thru my first tank of gas. According to my salesman they fill up with 87 octane. Here's a pic of my dash.

My average speed has been around 50 mph (between 30-70 mph). For the 1st 150 miles I shifted at 3K rpm. Since then I've been shifting at 3.5K rpm. I've been blipping the throttle during downshifts so I maybe using up more gas than others.

I hope to get more efficiency from the 91 octane that I filled up with today. Aside from dashboard numbers, I also need to get a feel on engine performance and decide whether or not the extra cost of $0.47 per gallon is worth it.
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Last edited by topdec; 04-09-2019 at 11:06 PM.
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post #13 of 14 (permalink) Old 04-24-2019, 03:29 AM
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Efficiency actually went down. I am at 36.5 mpg after my 2nd fill up.

But I’m also shifting at higher rpm, and have spent a few hours teaching my wife to drive the manual at parking lot speeds.

I’m staying with 92 octane for now since it’s recommended and I’m coming from an 18 mpg 4Runner so I don’t feel the extra 40+ cents much with the civic being as efficient as it is.

2019 HB Sport M/T

Last edited by topdec; 04-24-2019 at 03:36 AM.
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post #14 of 14 (permalink) Unread Today, 11:44 AM
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I have had my 2018 Honda hatch Sport 6 spd MT for over a year with 39,500 miles. I have noted that the Eco mode affects the Cruise control making it less sensitive and slower to respond thus saving gas for accellerations not required at highway cruising speeds. I found that the time spent in NYC traffic with many stops greatly affects the mileage. I typically will get 35 to 40 mpg on hwy cruise. City driving with stops and starts is quite variable and the take off at the lights is quite fuel consuming. Using 87 exclusively. Conservative driving with occasional Turbo push to 100% once a week to keep everything working. My average mileage is 32 to 38 mpg. Hope this helps.
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