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Old 10-01-2007, 03:30 AM   #20
Power Junkie
GM give me my fix please!
Drives: 95 Toyota GT4
Join Date: Sep 2007
Location: England.. aka the EU's whipping boy!!! (but not for much longer, hopefully)
Posts: 173
Originally Posted by Dragoneye View Post
The VVT DI V6 doesn't have E85 capability...not sure why either... But it does get better mileage and fuel economy. 27hwy which is very good in a massive car like the CTS, especially under the new EPA ratings.

Not anymore, . The new Vette no longer gets AFM, and under the new EPA standards, it has 26mpg, which is an improvement, the old way had it rated at 27 so....

I also think there may have been a slight misconception, here...E85 actually worsens fuel economy, it can provide more performance, but at the price of fuel economy...

i.e. Chevy Impala:

3.9L V6 VVT and AFM: 18/28 mpg
same engine running E85: 13/20 mpg

it's only major selling point at this time is it burns clean.
That coupled (hopefully) with it being a fair bit cheaper then petrol... but this is still early stages for E85.. if the car companies are serious about using it they'll get their R & D fully on the case when it comes to MPG.

The only problem i can see from this then is getting enough fuel in to the cylinders on high power cars... could cause detonation problems.
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