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Was looking around on the fourm and I came accross a thread about spark plugs and the subject of fuel economy came up. Someone stated that the compass got 32 -40 mpg. I get 24 25 on the highway so I thought there was something wrong with my 2011 base compass.

Doin reasearch I discoved that the canada version of the compass gets 32-40 mpg Jeep Canada | Crossover Compact SUV's | 2014 Jeep Compass Overview while the usa version gets alot less 23-30 mpg Jeep Vehicle Lineup ? Choose a Jeep

my question is why is this?
 

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You need to do a conversion either to litres/100km or US to Canadian MPG

The Canadian Gallon is in British units which is much larger gallon. Hence more miles on it. Also the Canadian # advertised for MPG is artificially derived and much higher than the real world. I'd trust the US system of assessment more. Canada's system is unregulated and the manufactures come up with a number suitable for their purposes.

PS I get 28-31 depending on speed etc MPG CND but anything over 110km/hr speed is below 30MPG for sure. Very poor mpg in my opinion. False advertising on these vehicles.

Just look at the Dodge Ram 1500 there is more than a litre more consumption in the US rating than for the Canadian litres per 100km as confirmed by reviewers.
 

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Its not so much the false advertising as it's the methods that the cdn and American gov't use to test vehicles. They don't really simulate real world conditions.

I get between 9.5L/100kms-10.00L/100kms strictly highway driving at 100 kms/h or 60mph

100% City driving I get 11L/100kms-11.5L/100kms

I have an intake and magnaflow muffler.

Economy takes a nose dive in the winter, but most vehicles do.

Interesting to note about the fuel economy. Here in Canada for 2015 they started testing vehicles differently, the new results for FDII MK's are now

FDII
Highway = 10.3L/100kms
City = 11.7L/100kms
That is awful close to what I get now.

Old

City = 10.3L/100kms
HIghway = 8.7L/100kms

the 2013 CVT's on FDI's

Old

City = 9.9L/100kms
Highway = 7.6L/100kms

New

City = 11.3L/100kms
Highway = 9.0L/100kms

The new testing methods here are a lot closer to reality based on real driving conditions.

The FDII mileage is not terrible around town vs the FDI, its the highway where the difference is really noticeable
 

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True but the Canadian government does not do the testing or stipulate the process. They leave it up to the manufactures to determine themselves. They in turn post lean number that knowone would ever get without at least a major tailwind (all the time) and no hills to climb. We know the emission for the same vehicle is the same in the USA yet their testing should much poorer numbers (higher fuel consumption).
 
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