26.42 mpg US / 31.7 Imperial (Canada) - JeepForum.com
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post #1 of 29 Old 10-31-2012, 09:52 AM Thread Starter
jimwww
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Wj 26.42 mpg US / 31.7 Imperial (Canada)

Hi Guys,

I just did a long trip in the last two days. I measured the distance travelled to Kelowna BC from Vancouver and back. I filled the tank. Got to Kelowna and refilled the tank - wrote down the mileage. Did the same thing back in Vanc. Filled the tank at the SAME spot I filled it before. (did not use the gas gauge as a measure for mileage.

I did not drive it over 65mph, many times drove it at 55mph as I went up long mountain roads (Same highway you see on the tv series 'Highway thru hell')

8.9 liters per 100 km is what I averaged. That equals 26.42 mpg or in Canada 31.7 mpg because our gallon is larger.

New spark plugs, 6cyl, 230,000 km on it, needs a new fuel filter, does have a new air filter on it, new snow tires for trip - 245/70/16, coolant was replaced before trip.

In the city I average 500km out of a tank (60% of that is hwy), over 750km on highway.

First really long trip I did in it. I really love driving this Jeep. Just as nice as my WK but 22,000 dollars cheaper.
NOTE: I was in 2wd for 4/5ths of this trip. I was in 4wd Full time for 1/5th of this trip. I have Selectrac. Used only Chevron Gas Octane 97.


1999 Jeep GC Limited ( WJ ) V8
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post #2 of 29 Old 10-31-2012, 10:19 AM
pileofAces
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pretty unbelievable numbers considering you were also driving mountain roads.

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post #3 of 29 Old 10-31-2012, 10:41 AM
gcjeeping
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^ x2

Through the mountains and 4wd at some point and a high mileage WJ. Pretty hard to believe. When new they only claimed 19 mpg on a good day.
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post #4 of 29 Old 10-31-2012, 11:27 AM
mycreativename
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I'm really finding it hard to believe, unless you were going down the mountain roads. From here (Buffalo) to Pittsburgh, I get 18mpg going one way and 23ish going the other, because one way is up hill and the other is down, perhaps that's what boosted your numbers so high.

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post #5 of 29 Old 10-31-2012, 02:18 PM
alfaitalia
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I really struggle to believe that. Under those conditions I would struggle to beat that with my CRD! Think you might need a new calculator!!

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post #6 of 29 Old 10-31-2012, 05:52 PM Thread Starter
jimwww
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Ya I know.. but I have had a lot of jeeps - never with a Selectrac.
The numbers though now using a canadian converter shown with a larger canadian gallon:
On the way up: 379km and used 44 liters.
On the way down: 350km and used 39 liters.
I thought I figured it out correctly using
http://www.tdiclub.com/misc/conversions.html but I think it is different using USA gallons. So that means approx 20 mpg usa or 24 mpg cdn.

I used http://www3.telus.net/findNchoose/mpg.html

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post #7 of 29 Old 10-31-2012, 06:06 PM
gcjeeping
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Quote:
Originally Posted by jimwww View Post
Ya I know.. but I have had a lot of jeeps - never with a Selectrac.
The numbers though now using a canadian converter shown with a larger canadian gallon:
On the way up: 379km and used 44 liters.
On the way down: 350km and used 39 liters.
I thought I figured it out correctly using
http://www.tdiclub.com/misc/conversions.html but I think it is different using USA gallons. So that means approx 20 mpg usa or 24 mpg cdn.

I used http://www3.telus.net/findNchoose/mpg.html

First pic calculations show...
379 kilometers=235.5 miles
44 liters=11.6236 US gallons
235.5 Miles / 11.6236 US gallons = 20.26.... MPG



Second pic calculations show...
350 Kilometers=217.48 miles
39 liters=10.3027 US gallons
217.48 miles / 10.3027 US gallons =21.10... MPG


452.98 Miles round trip / 21.9263 US gallons = 20.65... MPG





.
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post #8 of 29 Old 10-31-2012, 06:12 PM
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Those are impressive numbers! My WJ 4.0L is way far behind yours. I barely meet 13 MPG (19 L/100km). No towing, no 4wd at 100km/h. What's wrong with my truck or what did you do to your Jeep?
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post #9 of 29 Old 10-31-2012, 06:16 PM Thread Starter
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Right.. and Canadian gallon is 1/5th larger than a USA gallon making them both correct at 20.26 mpg USA and 24.2mpg Canadian. For what it is worth - I hate Metric.

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post #10 of 29 Old 10-31-2012, 06:16 PM
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Quote:
Originally Posted by gcjeeping View Post
235.5 Miles / 11.6236 gallons = 20.26.... MPG[/B][/URL]


Still, 20 mpg is spectacular.

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post #11 of 29 Old 10-31-2012, 10:03 PM
elcorvino
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Quote:
Originally Posted by McCloudsWJ

Still, 20 mpg is spectacular.
Not if you don't drive like a kid. Lol

I rock 55 mph w/ cruise control and consistently get 22 mpg with all highway driving.
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post #12 of 29 Old 10-31-2012, 10:04 PM Thread Starter
jimwww
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I do drive it gently - especially on a long trip. When I first got it I did put in a bottle of fuel injector cleaner. I have not changed the PCV valve yet.

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post #13 of 29 Old 10-31-2012, 10:10 PM
elcorvino
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Quote:
Originally Posted by jimwww
I do drive it gently - especially on a long trip. When I first got it I did put in a bottle of fuel injector cleaner. I have not changed the PCV valve yet.
I6 stock height? I'd figure out what's wrong with it then, unless your hwy driving is @ 75 or 80 mph. lower mpgs would be expected if your rockin 2200+ RPMs down the road.
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post #14 of 29 Old 10-31-2012, 11:01 PM Thread Starter
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If I recall 2000rpm at 55/60mph I think. I have 3.55's. I have the build sheet. No Lift yet.

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post #15 of 29 Old 10-31-2012, 11:23 PM
elcorvino
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Quote:
Originally Posted by jimwww
If I recall 2000rpm at 55/60mph I think. I have 3.55's. I have the build sheet. No Lift yet.
Ouch. Something is wrong. 55 mph with the i6 and 3.55's... I'm at or just above 1500 RPMs.
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