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Sedans Acura TSX Acura TSX Real World MPG Numbers
221 messages, Last post on Sep 21, 2009 at 2:10 PM
You are in the Acura TSX Forum. Your Hosts are pat & karens
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Highway mileage 34 Town Mileage 24 Combined mileage 31 Best Tank full 35 Worst Tank 28
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Replying to: biker4 (Jul 10, 2007 7:30 am)
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Replying to: nj2pa2nc (Jul 10, 2007 11:08 am) 
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I did a statistical test of the three MPGs from the 91 octane vs. the 38.1 MPG of the 87 octane and there was statistically no significant difference. To be sure, you probably need additional tests.
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Replying to: strawbs1 (Jul 10, 2007 8:06 pm)
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Replying to: biker4 (Jul 11, 2007 5:21 am) Test 1 and Test 3 were both done at 55 MPH, but one had cooler temps and a headwind, and the other had warmer temps and a tailwind. Test 1 and Test 2 appear to be from the same stretch of road (on the same day even), but Test 2 was done at a slower road speed. I agree with your thinking though. The only way to compare 87 octane and 91 octane economy is to do it with the same car, on the same road, under the same environmental conditions. It's meaningless to try and compare a TSX in NJ that gets 41 MPG on 87 octane and a TSX in San Francisco that gets 22 MPG on 91 octane. |
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Replying to: strawbs1 (Jul 10, 2007 8:06 pm) 
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Replying to: nj2pa2nc (Jul 10, 2007 5:24 am)
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If you drive the TSX well below its performance envelope (around town, cruise control on level highway, light loads in the car, etc) all you need is regular fuel. You will not see much of a difference in mpgs. If you drive your car closer to its performance envelope (sprints to redline, very spirited driving on mountain switchbacks, full load in the car, etc), then you need 89 or 91 octane to squeeze the max performance from the k24 engine. I do most of my traveling in New Mexico, Arizona, and Colorado at altitudes from 1100 feet to +11,000 feet. I-70 westbound mountain pass around Clear Creek, west of Denver, is at 11,013 feet. Put 87 octane in your TSX and hit that stretch of road. Run your mileage test in this environment and then you will see a “statistically significant” change in your mpgs/power/performance. Choose the fuel that best fits for your driving environment/habits.
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Replying to: mrgold35 (Jul 30, 2007 12:35 pm) |
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