bleh! I gave up on VWAG long ago, lost faith because they lost their vision and couldn't make a dependable car. Q7 is nice, but for the price tag, does not seem to offer a plethera of ammenities and huge performance numbers. its nice though.
First let me make it clear I was not bashing the CX-9--just having fun. I truly enjoyed my CX-9, think it's a great vehicle, and highly recommend it to friends, family, coworkers, and at other car forums.![]()
The Edmund's 0-60 time you quote is for the Q7 Premium, not S-Line. The S-Line has 333HP.
Car and Driver says 2011 Q7 S-Line 0-60 in 6.6 seconds, 1/4 mile 15.0 sec @ 94.
http://www.caranddriver.com/var/ezf...lication/40e49060868440d8503ac2568592dfbc.pdf
0-60 Times says 6.8 seconds
http://www.zeroto60times.com/Audi-0-60-mph-Times.html
Audi says 6.9 seconds
http://models.audiusa.com/q7/detailed-specifications
I've seen other sites list it at 6.5 seconds, and none higher than 6.9 seconds.
Using premium and a K and H filter in the 2010 CX-9 improves it performance a bit. Enough to be quite noticeable.
Premum fuel will actually slow down the vehicles that are not designed for premium fuel (though
one might not be able to feel the difference).
Premium fuel has less energy per volume than regular unlead 87.
Premium 91 reduces knocking, therefore, allowing higher compression, thus more torque per ignition.
Using 91 in CX9 will not give you more torque unless your CX9 engine has knocking issue already.
In that case, I would try 89 first.
Which is why aircarft use higher octane fuel?????????????????????????????? oh and funny cars. Ceric, your arguement holds no weight. Higher octane fuel leads to detination at higher TDC rather than lower. Pre-detination causes the knocking. Designed for lower octane does not mean reduced performance at higher octane.
Many high-performance engines are designed to operate with a high maximum compression, and thus demand high-octane premium gasoline. A common misconception is that power output or fuel mileage can be improved by burning higher octane fuel than specified by the engine manufacturer. The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Because switching to a higher octane fuel does not add more hydrocarbon content or oxygen, the engine cannot produce more power.