259ghost Posted September 26, 2009 Report Share Posted September 26, 2009 Is anyone not satisfied w/ the mpg on their Journey? and has anyone came up w/ any ideas on improving it w/o voiding the warrany? also: what is the perfect rpm @ idle? Thanks in advance The Ghost Quote Link to comment Share on other sites More sharing options...
rozwell911 Posted September 28, 2009 Report Share Posted September 28, 2009 I have been satisfied when compared to my previous car. I average about 18-19 mpg around town, with city driving and stop and go traffic. ON highway i average between 21.9 and 25mpg depending on hills, speed limit and traffic. I just got back from Lemoore NAS last night. Because the speed limit on highway 5 in California is 70mph, i was doing 75 mph. I was getting 21.8 mpg average on that trip. If i did between 60mph and 65mpg i'd get near or at 25 mpg. There is no RPM i can give you because i pass my assesments at speed. Now for a more accurate MPG, next time you fill up your tank, do not top it off. Once the pump stops, print your receipt with price and how many gallons filled up. then base it off of that. Ex: if you were at a quarter tank and filled up 15 gallons, and then you drive 250 miles till you fill up again at a quarter tank, then you MPG shoudl be about 16 mpg, if i did my math correct. Quote Link to comment Share on other sites More sharing options...
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