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I was surprised nobody is talking about their gas mileage, which leads me to believe, maybe I am unusual.

I started off averaging 14.5 miles to the gallon on a fill up. With every fill up it goes up. I am now averaging 18.5 miles the last 2 fill ups--the best so far at 4800 miles. I drive on the highway 98% of the fill up (70 miles an hour). If I am staying at 8.5 now, that is quite a bit lower than the highway estimates given on the sticker.

I looked in the owner’s manual to see if the engine had a break-in period-no mention. I asked my dealer/service dept, they were not aware of this.

Please tell me if you experienced this gradual increase, and where it finally stopped increasing-mpg and mileage on car.

How many M’sPG are you folks getting?
 

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Try the SEARCH feature ...

... there are numerous threads that discuss mileage issues.
 

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1100 miles so far, New England at 34 degrees and 91 octaine yields 26.1 mpg highway (66 mph), 15.4 to 16.5 "city" (suburban) dependent upon warm or cold, number of intersections, etc. with non agressive driving. Much better than anticipated and so much better than our '93 Jeep GC! Now I'm going to shut off this damn trip computer and drive this machine.
 

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No mpg problems here...

Speaking of mileage, the highest that I have seen on my MDX was couple weeks ago on a return trip from Lake Tahoe (skiing). I filled up around Norden (Sugar Bowl) area and during the first 40 miles of driving my mileage reading reached 36.5 mpg. Since it is all downhill, I was going 70 to 80 mph, but hardly had to use the accelerator pedal. The mileage stayed above 35 mpg for approximately 40 to 50 miles. By the time I returned to Bay Area (approximately 160 miles) my average mpg dropped to a still excellent 29.1 mpg. The return trip from Tahoe is, of course, primarily downhill freeway driving.

By contrast, on the trip to Lake Tahoe (which is mostly uphill freeway driving) the average gas mileage I managed to get was only 18.2mpg. So, my overall trip average of 23.6 mpg is very good, considering the size of the MDX and the amount of stuff that I was carrying.

In day-to-day around-town driving though we usually average between 14 and 17 mpg.
 

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San Jose to Tahoe/Reno

FYI. Today I drove about 270 miles from San Jose to Reno. Most of the driving are freeway. I got a bit over 20mpg. Since I was driving at above 70mile per hour most of the time, I was pretty impressed that I still get 20mpg. I wonder if I drove at 55MPH, will I get even better mileage?
 

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Yes, but you'd get rear-ended!

My wife and I drove from Raleigh to DC area a couple of weeks ago on I85, I95, I295 (Richmond) and I495 (DC). MPG going north peaked at 24.7 on the trip computer. Coming back south (somewhat heavier traffic), it peaked at 22.6. Most of the time we were keeping the cruise control at 72mph. Mileage on car ~7100 at end of trip.
 

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Averaging 25.1 miles per Gal...

FINALLY picked up our "X" on Saturday. Long drive to the dealer (2.5 hrs.) but to short a drive back. The trip averaged 25.1 m/gal. (believe it or not). Installed the Burlwood Shift knob that I got from Tim the minute I got to the dealer. Already installed the base rack yesterday (Sunday) that I bought used from one of the member here. Waiting for the Weather Tech mats from Tim.

One word so far....

AWESOME!!!
 

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I doubt the precision of the on-board trip computer for the calculation of gas mileage. Has anyone tested their MPG using the old fashioned method of simply recording your mileage when you fill up, record it again the next time you fill-up, then divide the number of miles on that tank by the number of gallons taken to fill the tank back up?

I am curious to see what the actual MPG's might be using this method. I suspect that they will be similar. Keep me posted, as I am still pondering the decision of buying an MDX.
 

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mdxdad said:
Has anyone tested their MPG using the old fashioned method of simply recording your mileage when you fill up, record it again the next time you fill-up, then divide the number of miles on that tank by the number of gallons taken to fill the tank back up?
Try a search on this...I think it has been discussed several times with people generally observing that computer MPG is within 1 of hand-calculated MPG.
 

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A2MDXer said:


Try a search on this...I think it has been discussed several times with people generally observing that computer MPG is within 1 of hand-calculated MPG.
I find this to be the case; the hand-calculation is usually about 1-1.5 mpg less than the screen's figure. That's certainly close enough for me.
 

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I calculate the MPG at each fill up (on my Palm, not paper). In my X's first 2800 miles the actual MPG has varied from 17.8 to 21.6 depending, of course, on the type of driving. (The overall average is 19.7.) The trip computer normal reads about 1MPG higher at the fill up.

The average is hurt by the nature of the vehicle -- it is too much fun to drive! If we could just limit ourselves to the type of driving we bought it for (highway), I'm sure the average would be higher. However, every time we get in the MDX we tend to spend an extra hour exploring back roads just for the fun of it. It's not just that it's fun to drive; it's also fun just to be in. :D
- Conrad
 
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