Last post on Jan 04, 2013 at 9:17 PM
You are in the Acura MDX
What is this discussion about?
Acura MDX, Honda Pilot, Car Comparisons, SUV
#19 of 63 Re: Thanks love2driveinct and crvjoe [dfwhonda]
Feb 05, 2008 (11:12 am)
I think some of us are stuck in our youthful days when premium gas was 20% more expensive than regular. Do your own math but I bet the 25-cent extra for premium adds up to -atmost- $4 per tankful.....even filling up once-a-week "only" requires $200/year It is real money but - is it seriously a deal breaker for the MDX as some have said on this forum?
I needed a vehicle in 2001 so I bought the MDX but I would have probably bought the Pilot....had it been available. Personal preference. The NAV system in my 2001 (made for Acura by Alpine) has paid for itself over the years.
#20 of 63 Re: Thanks love2driveinct and crvjoe [mecheng1]
Feb 05, 2008 (7:03 pm)
And who says that you have to use Premium, anyway?? We put only 87 in our MDX. We have experimented under various driving conditions, temperatures, etc, and the vehicle drives the same & gets the same mileage whether we put 87, 89, or 91 in it. Is there something I'm missing here?
#21 of 63 Re: Thanks love2driveinct and crvjoe [love2driveinct]
Feb 06, 2008 (3:31 am)
That's a good point. I generally try to follow instructions for type of gas, but I do recall that I would not put premium gas in my 2001 MDX if the cost was more than $2 per gallon. I know...pretty random.
I have a lead on a nice 2006 MDX in TX, and since this car isn't for me but for my wife, I think she will probably end up choosing the MDX for the luxuries it offers over the Pilot (as well as for the styling, which is still much better imho than the blocky Pilot).
#22 of 63 Re: we have both vehicles [love2driveinct]
Feb 06, 2008 (5:46 am)
I have an 06 MDX Touring (Nav/RES) as well.
I did a lot of testing with the car and found that with 93 octane, we got approx 5-6 MPG better than when running 87 Octane.
I tested this on my commute to work, which is the same route, same traffic.. everyday. The commute is about 70% Highway, 30% city
I ran with 93 for a few months and with 87 for a few months. I tested this in the late Spring to be sure that winter fuel blends didn't get in the way.
I suppose it depends on your commute and style of driving, but after doing the tests and calculating MPG by fuel in/miles out, we found that the MDX does better on the higher octane fuel.
Yes, you spend more at the pump, but with the miles out being higher, you're actually saving money.
#23 of 63 Re: we have both vehicles [scottm123]
Feb 06, 2008 (11:46 am)
That makes a lot of sense. The PCM of the MDX will use the input from the vehicle's sensors (knock sensor, etc.) to adjust the timing of the vehicle to compensate for different fuel blends - therefore using regular gas doesn't actually "harm" the engine.
Perhaps using the lower octane does, as Scott has proven, prevent the engine from operating at it most efficient point, even at lower points on the power curve. Hence, owners manual's that recommend premium verses those that require premium. There are some compression ratios that require 93 Octane to prevent engine damage.
#24 of 63 Re: we have both vehicles [mecheng1]
Feb 06, 2008 (12:45 pm)
mecheng1, you are correct, the PCM/ECU will adjust the timing based on the type of fuel being used. While regular gas will work in most cars where premium is recommended, the offset is a decrease in gas mileage and horsepower (HP).
Personally speaking, if I can afford to buy or lease a new MDX, with an average price of $42k, paying the extra $210 per year for premium fuel shouldn’t be an issue. The extra cost would be less once the better gas mileage, with premium fuel, is factored.
Just my .02.
#25 of 63 Re: we have both vehicles [chrism124]
Feb 06, 2008 (2:25 pm)
Hmmm... doesn't sound like my "testing" was very scientific, lol...
But I think the point of all this, is that with only a couple hundred dollars a year difference, it needn't be a major deciding factor in which vehicle to get.
#26 of 63 Re: we have both vehicles [chrism124]
Feb 09, 2008 (6:27 am)
If gas prices are going to sway your decision, go out and get a rewards card, like a shell Mastercard, or whatever. I get 5% off on all gas at shell, I don't use the card for anything else, I just use it as a gas card. Do the math. I put Super in 07 MDX at $3.13, take off the 0.156 a gal with the discount and I am paying less than 3 bucks a gal for super, in Rockville MD (where gas is expensive). I would love it if my MDX ran on regular, but it really isn't that much more a year. Please don't spend $40K plus on the MDX and put regular in it. They get 300 hp out of it by boosting the compression. Put regular in it and it will probably knock or give you trouble down the road. Now if you are only leasing . . .
#27 of 63 Decision made
Feb 14, 2008 (8:36 am)
Thanks to everyone for their thoughts. I ended up purchasing a 2008 Pilot due to the dealer incentives Honda is throwing around. I got a EX-L w/NAV for under $28k + TTL, which was about $2k cheaper than I could get a 2006 MDX w/NAV with 22k miles (that was also located 3 hours away).
The price difference convinced me to live with the following Pilot shortcomings vs the 2006 MDX (some of which have already been mentioned above):
1) No power adjustable passenger front seat; no memory seating for driver's seat (which doesn't matter much to me because both my wife and I keep the seat as far back as it will go)
2) Fan speed for second row of car linked to front zone (MDX has independent fan speed control; Pilot only has independent temp. control)
3) No hands-free cell phone capability (not even offered as a Honda accessory, but as an after-market accessory by the dealer for an excessive price)
I'm sure there are others, but those are the ones that I noticed right away during our test drive.
#28 of 63 Re: we have both vehicles [scottm123]
Feb 15, 2008 (5:32 pm)
As far as the driving mix and the octane level of the gas used is concerned does it make a difference if an MDX is driven mostly on highways for long trips or used mostly in city driving? In other words is the difference in the vehicles performance more pronounced using 87 vs. 91 octane depending upon the type of driving - city or mostly highway?