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got 27mpg straight highway driving

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Old Apr 12, 2012 | 07:22 AM
  #1  
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Default got 27mpg straight highway driving

i got 27mpg on my road trip last weekend, which was about 250 miles one way.

i drove 250 miles there, measured, and got 27mpg.
then i got 27mpg again on the way back home.
and this exactly matched my "mpg" meter on my 97 cluster.

my city mileage is ~18-20. i was surprised to see 27mpg on the highway.

what are you all getting?
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Old Apr 12, 2012 | 07:24 AM
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I got 17.9 mixed last tank. I be boostin hard tho dawg.
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Old Apr 12, 2012 | 07:28 AM
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last tank of fuel i got about 9.34 MPG.
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Old Apr 12, 2012 | 07:32 AM
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^^^Winner
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Old Apr 12, 2012 | 09:06 AM
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474 on my last tank. Half tank was highway though.

Gas light didn't even come on yet lol.

92 SC4 with W58 and 3.26 rear
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Old Apr 12, 2012 | 09:13 AM
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Originally Posted by ihiryu
474 on my last tank. Half tank was highway though.

Gas light didn't even come on yet lol.

92 SC4 with W58 and 3.26 rear
Measured via GPS? How are you correcting for non-stock gear ratios?
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Old Apr 12, 2012 | 09:21 AM
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yeah that 5th gear and diff ratio will jack the mileage all up

u 8nt bewstin hard enuf dawg!!
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Old Apr 12, 2012 | 09:54 AM
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Yellowbox I've actually got it 1 MPH slower than my GPS measured (So when the cluster reads 70, I'm doing 69).

Yeah it sucks, cause it feels like a stock SC400 compared to power and acceleration. When I had my 3.93, and my 4.08, it was super quick. I was staying on par with 370Z's. But gas mileage was like 200 lol
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Old Apr 12, 2012 | 10:01 AM
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Roger bacon. That's some crazy good mileage though.
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Old Apr 12, 2012 | 10:05 AM
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I get about 23mpg average... I do mostly highway driving, but DMV traffic will turn that highway right into a city for you.

98 SC300, W58 (swapped) with stock 4.27 gearing.
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Old Apr 12, 2012 | 11:10 AM
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when the cluster reads 70, i'm doin 69, bacon
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Old Apr 12, 2012 | 01:16 PM
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Yeah mine reads fast by like 1-1.5mph also. So I really only get about 17.5 MPG
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Old Apr 12, 2012 | 01:18 PM
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less boostin hard dawg, more cruuuuuise
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Old Apr 13, 2012 | 09:23 AM
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Yeah, i usually get 27-28 on highway and 17 on city. With a stock 98 SC300.
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Old Apr 13, 2012 | 09:46 AM
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30+ highway when I keep my foot out of it
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