New Best Gas Miliage
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True Car Nut
Joined: Jul 2004
Posts: 7,545
Likes: 1
From: Twin Falls, Idaho
New Best Gas Miliage
Starting Altitude: 3700FT
Final Altitude: 4400FT
Maximum Altitude: 7300FT
Average Temperature: 40*
4 decent mountain passes, requiring 2nd gear to maintain 75mph.
Sat in traffic for 30 minutes at near complete standstill (normal SLC area traffic)
27MPG
My dad needs to learn how to use the boost gauge.
Final Altitude: 4400FT
Maximum Altitude: 7300FT
Average Temperature: 40*
4 decent mountain passes, requiring 2nd gear to maintain 75mph.
Sat in traffic for 30 minutes at near complete standstill (normal SLC area traffic)
27MPG
My dad needs to learn how to use the boost gauge.
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How did Daddy like the SSEi?
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Originally Posted by fantastic88
4 decent mountain passes, requiring 2nd gear to maintain 75mph.
Wow! That must have been one H*** of a grade to do that to a L67.
My trips up home hit the 5% area...
Hans... What was the altitude of the Grades? Driving through Parts of Colorado I think we hit 10000 ft
I lived at 6200 ft for a long time.... Dry and thin air 
* Edit * Nevermind... 4400 Ft... Hmmm... 2nd gear to maintain 75? Wow
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Thread Starter
Senior Member
True Car Nut
Joined: Jul 2004
Posts: 7,545
Likes: 1
From: Twin Falls, Idaho
Originally Posted by jr's3800
Originally Posted by fantastic88
4 decent mountain passes, requiring 2nd gear to maintain 75mph.
Wow! That must have been one H*** of a grade to do that to a L67. My trips up home hit the 5% area...
Hans... What was the altitude of the Grades? Driving through Parts of Colorado I think we hit 10000 ft
I lived at 6200 ft for a long time.... Dry and thin air * Edit * Nevermind... 4400 Ft... Hmmm... 2nd gear to maintain 75? Wow
highest pass I saw was 7700ft
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Posts like a Supercharger
Joined: Jan 2006
Posts: 173
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From: peterborough, ontario canada
maybe i should go give my bonne a pat on the hood!
after hearing you guys talk about mileage and having put in a new timing chain and gears i thought maybe i should do a mileage check both local and hi-way. i thought it was ok till i read this today....now i'm thinking i should be really impressed!
local driving was about 40% city and 60% regular highway....averaged 26 mpg with just me in the car.
hi-way trip was all 4 lane to pick up friends at the airport. steady driving, cruise set on 75 but on the way back there was 3 of us and a trunkload of luggage....got 33mpg.
not bad for an 89 with almost 300,000km(187,000miles) on the odometer!
local driving was about 40% city and 60% regular highway....averaged 26 mpg with just me in the car.
hi-way trip was all 4 lane to pick up friends at the airport. steady driving, cruise set on 75 but on the way back there was 3 of us and a trunkload of luggage....got 33mpg.
not bad for an 89 with almost 300,000km(187,000miles) on the odometer!
