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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 12-29-2021, 08:58 AM   #1
grumpysnapper
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I managed 2.59 mpg, whats your worst fuel consumption figures?

My worst so far, on E85, accurately measured from brimmed tank to brimmed tank at start and end of session, during a (gravel) track day...
48 litres for 53 km = 90.57 litres per 100km.
Or 2.59 mpg
Good fun though!

Last edited by grumpysnapper; 12-29-2021 at 10:07 AM.
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Old 12-29-2021, 09:09 AM   #2
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2.59 or 25.9?
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Old 12-29-2021, 09:16 AM   #3
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Holy shit I don't think I've ever hit single digit MPGs even in my turbo Impreza let alone my FR-S. That must have been some fun driving right there.

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Old 12-29-2021, 09:25 AM   #4
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Are you idling at a covid test site?
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Old 12-29-2021, 09:40 AM   #5
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Holy shit I don't think I've ever hit single digit MPGs even in my turbo Impreza let alone my FR-S. That must have been some fun driving right there.
Was fun, but to be fair its a fully built motor with a supercharger etc. And E85 doesn't help...
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Old 12-29-2021, 10:42 AM   #6
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That's a lot of smiles per gallon
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Old 12-29-2021, 10:44 AM   #7
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I think my worst was 6, at Thunderhill. But I wasn't on e85 at the time.
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Old 12-29-2021, 12:30 PM   #8
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Just curious: What do your AFR's run?
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Old 12-29-2021, 12:39 PM   #9
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About 4.5-5mpg NA on E85. Average RPM 6000, Max 7500, min 3200. Average speed 75mph, Max 119, min 25.
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Old 12-29-2021, 12:55 PM   #10
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22ish on E85 doing the Three Sisters drive in Texas late summer/ early fall.
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Old 12-29-2021, 01:25 PM   #11
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Very impressive! My worst was 8.82 at Summit Point - but that also included an hour of the drive there.
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Old 12-29-2021, 06:15 PM   #12
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21mpg e85 on a highway only road trip. No fun times to be had.
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Old 12-29-2021, 07:27 PM   #13
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Just curious: What do your AFR's run?
No idea, sorry.
Would have to check with the Motec guru when he gets back from holidays.
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Old 12-30-2021, 02:54 AM   #14
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Quote:
Originally Posted by grumpysnapper View Post
My worst so far, on E85, accurately measured from brimmed tank to brimmed tank at start and end of session, during a (gravel) track day...
48 litres for 53 km = 90.57 litres per 100km.
Or 2.59 mpg
Good fun though!
Did you check for a hole in your car's gas tank? -

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