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Acura TSX Real World MPG Numbers

221 messages,  Last post on Sep 21, 2009 at 2:10 PM

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What is this discussion about? Acura TSX, Fuel Efficiency (MPG), Sedan


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#166 of 221
Re: Regular Unleaded vs. Premium Unleaded [nj2pa2nc] by biker4
Jul 10, 2007 (5:00 am)
Reply

Replying to: nj2pa2nc (Jul 08, 2007 1:00 pm)

You can't go by what others are getting - they don't drive like you and don't have your exact car. You'd have to try it in an apples-to-apples comparison. Again, when that was tried the mileage using regular was lower than using premium to the tune of the cost savings at the pump.
 
See the chart below done on an 04 TSX. Look at test 1 and 3. There could be a slight change for MY06 and later because of the different engine.
 

 
If you want to see the whole write up go here: http://tsx.acurazine.com/forums/showthread.php?t=23721
 
BTW, this also shows why the speed limits laws of the 70s are still applicable today - the best mileage is at the old double nickel limit.
 
And of course this is only a cost comparison - never mind the fact that the manufacturer recommends premium and that you make more power with premium.
#167 of 221
Re: Regular Unleaded vs. Premium Unleaded [biker4] by nj2pa2nc
Jul 10, 2007 (5:24 am)
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Replying to: biker4 (Jul 10, 2007 5:00 am)

if I am not supposed to be comparing to what other's are getting then why are you? (no offense) I have an 06 tsx with 6 spd which I do not try to redline. I also gave up on my racing days. In my younger years (where did they go) I did get stopped for speeding many times (never got a speeding ticket-only warnings (knock on wood) as I have stated I get more than enough power. As you know most highway speed limits are higher than 55. As the Van Halen song goes I can't drive 55. I noticed you post what other people are getting-how many mpg do you get
#168 of 221
Re: Regular Unleaded vs. Premium Unleaded [nj2pa2nc] by biker4
Jul 10, 2007 (7:30 am)
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Replying to: nj2pa2nc (Jul 10, 2007 5:24 am)

It has nothing to do with what I get - that's not the point here. The point is that with the MY04 TSX using the recommended premium will get you better mileage than using regular thereby eliminating most if not all of the perceived gains by the lower cost of regular.
#169 of 221
4500 Mile Update by thomcin
Jul 10, 2007 (7:51 am)
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Highway mileage 34 Town Mileage 24
Combined mileage 31
Best Tank full 35 Worst Tank 28
#170 of 221
Re: Regular Unleaded vs. Premium Unleaded [biker4] by nj2pa2nc
Jul 10, 2007 (11:08 am)
Reply

Replying to: biker4 (Jul 10, 2007 7:30 am)

since I do not know what your mpg is I can not know whether it is better than what I am getting using regular gas.
#171 of 221
Re: Regular Unleaded vs. Premium Unleaded [nj2pa2nc] by biker4
Jul 10, 2007 (12:36 pm)
Reply

Replying to: nj2pa2nc (Jul 10, 2007 11:08 am)

Obviously you don't get it - so there's no point in discussing this further.
#172 of 221
Gas Mileage Test by strawbs1
Jul 10, 2007 (8:06 pm)
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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.
#173 of 221
Re: Gas Mileage Test [strawbs1] by biker4
Jul 11, 2007 (5:21 am)
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Replying to: strawbs1 (Jul 10, 2007 8:06 pm)

I don't quite understand this statement but I agree that more testing is needed. My statement was based on the best test I've seen to date - the one I quoted.
#174 of 221
Re: Gas Mileage Test [biker4] by fedlawman
Jul 11, 2007 (5:39 am)
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Replying to: biker4 (Jul 11, 2007 5:21 am)

It was a good effort, but I saw a few issues with that test you linked. Here are a couple off the top of my head:
 
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.
#175 of 221
Re: Gas Mileage Test [strawbs1] by astropup
Jul 26, 2007 (11:24 am)
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Replying to: strawbs1 (Jul 10, 2007 8:06 pm)

Not surprising with an n of 3. Yep, you'll need more trials for a good statistical test. But, I respect the geekitude.

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