How to increase the fuel mileage of my jeep patriot. - Jeep Patriot Forums
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post #1 of 6 (permalink) Old 05-14-2019, 08:52 PM Thread Starter
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How to increase the fuel mileage of my jeep patriot.

I just purchased a 2007 4x4 trail rated jeep patriot with 216,000km. I'm wondering if it's normal for me to be getting 400km to a full tank of fuel. If it's correct is there anything I could do to possible increase the range?
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post #2 of 6 (permalink) Old 05-14-2019, 09:26 PM

 
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Considering the age, mileage, and the fact that it's a FDII that's not real bad.

Since you bought it used, the adaptives in the PCM are set to the last owners driving style

If you want you can try the re-learn procedure here:
https://www.jeeppatriot.com/forum/15...g-battery.html

Or you can try disconnecting the battery for an hour or so to reset the adaptives and see if that makes a difference.
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post #3 of 6 (permalink) Old 05-14-2019, 10:56 PM
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FD2 usually gets about 23mpg, or about 300 miles(482.258km) until you have a half-gallon(~2 liters as I understand) left in the tank. And that's on a good day. FD2 has only ever been available with the CVT(continuously variable transmission) which helps a bit with in-town mileage, but depending on final drive ratio, can suffer on the highway. And the FD2 setup is "geared" lower than the FD1 CVT setup, because off-road goodies and available crawl ratio. The fuel light comes on when you have about 2 gallons left in the tank, and I don't know how low you let that gauge get before you refill. My FD1 CVT gets 23mpg when it's in a hilly area, windy day, etc, but on a flat freeway without much wind, it'll return 27mpg. Got 32mpg once for sure, but that was with a tailwind across the Texas prairie, so take that how you will.

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post #4 of 6 (permalink) Old 05-15-2019, 09:27 AM
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I made this response to your other post "How many KM's per tank of gas" on the Canada thread:

For comparison my FWD 2.4 CVT approached 325 to a tank driving easy at 50MPH (80KMH).
Wife's FWD 2.0 5-spd manual gets 330 under similar circumstances.
These are both bare bones vehicles.

Since you're dragging around an additional differential with a lower ratio drive-train I'd say you're about the expected range.


And welcome to the forum!

Best way to improve fuel economy is to drive easy.

Last edited by Ignatz; 05-15-2019 at 10:51 PM.
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post #5 of 6 (permalink) Old 05-15-2019, 10:08 AM
 
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REAL things to inprove fuel economy:

1) make sure that the vehicle is in good repair (how old are the spark plugs, oil, clean fuel injectors? etc).
2) Reduce weight. Don't carry around that extra 200lbs of junk in the back, if you want to go crazy, pull out the spare tire, back seat, interior panels, etc.
3) reduce unsprung weight - Much lighter wheels and tires. (of course if you spend a lot of money doing this, it will take you forever to get that money back on saved gas).
4) Drive easy, Predict stops to coast as much as possible, and slow acceleration, keeping at or under the speed limit, etc.
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post #6 of 6 (permalink) Old 05-16-2019, 02:49 PM
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400 km is 248 miles
that's better than my average of 200miles (321km)to a tank
my reserve light usually comes on at about 175 miles
been like that with little variation for +200k miles
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