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Old 06-10-2018, 04:49 AM   #1 (permalink)
YukonCornelius
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Join Date: Jan 2011
Location: Pennsylvania
Posts: 166

Crapolier - '98 Chevrolet Cavalier base
90 day: 34.81 mpg (US)

05 CTS-V - '05 cadillac cts-v
90 day: 33.01 mpg (US)

95 Accord - '95 Honda Accord
90 day: 38.06 mpg (US)

11 CTS-V - '11 Cadillac CTS-V
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2008 Impala 3.5 LT. Remove Spoiler?

Hey guys. I recently picked up a clean Impala LT with 71,000 miles for $2500. Original owner passed away, it sat for 18 months in a garage. Right away I noticed it rewards driving for fuel economy. A 2.86 gear ratio with good low end torque from the pushrod 3.5. Being rather conservative, about 27-28mpg to a tank. A strong effort during a 100 mile trip with some traffic lights netted 33 mpg. It really seems to have a sweet spot at 67 mph.

So far I've bumped tire pressure to 41 psi (just under what trips the sensors).
Changed the trans-fluid to synthetic.
Modified the intake to pick up more hot air, but it is not a full WAI.

The car has a factory spoiler. It also has an unusual raked stance. The rear of the car is noticeably higher than the front. I took the photos in dark, I think it shows the angles a little better. Speed limiter kicks in at 102 so I won't be needing any extra down force.





Stock photos..



No Spoiler


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Don't know why it says 00, it's a 95
374,000 miles and tired.

Last edited by YukonCornelius; 06-10-2018 at 05:00 AM..
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