Quote:
Originally Posted by 95avusblue
A friend suggested that I give Acura TSX a try as it was getting him 32-34 on highway. Although the car requires premium fuel, he says he ran 87 octane with no ill effects, I am concerned about long term effects of that.
Perhaps a civic may be better for the intention of running 87 octane.
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I bought a new '06 and it has about 12K miles on it so far
("Tessie" in the Garage -- view the GasLogs if you like).
We run Premium all the time because it's still pretty new, but I'm thinking about trying a lower-grade to see what happens.
What I noticed when renting a Volvo S40, was that it got considerably higher FE than expected, and it probably ran 87-Octane for its lifetime.
The same might be true with the TSX -- it may notice the lower octane levels and back-off fuel consumption. My wife drives the car primarily, and probably uses the VTEC RPM range once-a-month, if that -- so that may be where the requirement lies. It does have a higher compression ratio than similar displacement Honda variants, so there's a concern with detonation if it gets super-hot (but perhaps the knock or octane sensor will take care of that).
RH77