V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Summer Trip '01 Gas mileage....

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Old Aug 18, 2001 | 09:08 PM
  #1  
Jason E's Avatar
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2011 Norwood Gathering
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Joined: Jun 2000
Posts: 3,435
Likes: 4
From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
Engine: LS1 / LS1 / LSA / 5.7 Hemi
Transmission: 4L60E / T-56 / 6L80E / W5A80
Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
Summer Trip '01 Gas mileage....

For those of you wondering what a decently tuned and running 2.8 should get for mileage, here's my runs from my 1,000 mile road trip (the last 340 mile stretch has yet to be refilled).

Stop #1: All 65-80 MPH highway cruising, South Deerfield Ma, to Freeport, Me...202 miles / 7.89 gallons = 25.69 MPG

Stop #2: 1/3 highway driving, 2/3 backroads at 50-55 with little stop and go, but lots of hillclimbing at 3,000 RPM...302 miles / 13.14 gallons = 22.98 MPG

Stop #3: Mostly backroads with 3 15-20 minute traffic jams, fully stopped...107 miles / 4.87 gallons = 21.97 MPG

This was using 93 Mobil with a Hypertech Stage I chip, with a full tune up done 8,000 miles ago. Sound like good numbers??

The sad thing is the Z28 gets better mileage, and does it with twice the displacement and with over twice the power...sad, isn't it?

------------------
Jason E

'89 Camaro RS
-Medium Grey Metallic
-2.8, A4, T-tops, 92k miles
-Hypertech chip, Accel wires/coil/K&Ns
-Alpine 60x4 and Bostons

'97 Z28
-30th Anniversary package (white with orange stripes)
-LT1, M6, t-tops, 44k miles
-Eclipse CD and 10" Aluminum sub in JL Audio Stealth box, Boston RM speakers, Xtant 403a amp

Speed Kills...Wanna live forever? Drive a Ford.
Long Live #3...
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Old Aug 19, 2001 | 12:09 AM
  #2  
Xenodrgn's Avatar
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Joined: Apr 2001
Posts: 1,408
Likes: 1
From: Bayville NJ and Newark at NJIT.
My 2.8 is only 10 MPG under you. It's still good it's still good!

------------------
1985 Camaro SC - 2.8L, auto.

http://www.xenodrgn.f2s.com/Frontright.jpg
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Old Aug 19, 2001 | 10:15 AM
  #3  
Joe_L's Avatar
Supreme Member
 
Joined: Jan 2001
Posts: 1,221
Likes: 0
From: Halifax, NS,Canada
Car: 1995 Z28
Engine: LT1
Transmission: Built 4L60E
Axle/Gears: 3.23's - Limited Slip
I took a summer trip a month ago, Put 44 litres in my tank,and drove 560km on it...I'd say 2/3 highway(110-130km/h), 1/3 stop and go in the city doing about 50km/h
Thats 29.6mpg, so I was pretty happy.
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