i finally got my 99 dakota on the road the other day and boy was i surprised,it got 7 or 8 km per litre.im not sure what that would be in mpg.its got a 3.9 that really seems to work good with a auto tranny.i know new plugs would help but there must be something bigger that is wrong,any help would be appreciated

 

At 20 miles per gallon I don't see why you are complaining. That is about as good of mileage as our trucks get.

 

Very true a good tune up might help out a little bit but if you are getting above 20 mpg thats not bad at all. Maybe with a good tune up and driving on the highway you might see 22 or 23 MPG but keep in mind your in a heavy truck and as soon as you get into stop and go traffic your going to start sucking up some fuel.

 

i get 4-5KM per litre, i do have the 5.2 though

like the ones above said, do a tuneup; don't drive right foot heavy (if I do that i can get as low as 3km/l)

it costs me roughly $70, more or less 70 litres to fill and I get 290-325~ KM, that was with 100% city driving. Now that im going to school I do about 90% highway 10% city, i get around 400-425km per tank

 

yes consider your self lucky, thats pretty good for the city

 

my buddy put it on a computer and it was showing i need to hook up a o2 sensorand output speed sensor,so hopefully replacing them helps,the gap on my plugs is 32 thousands,not sure what it should be.

 

Yeah 20 mpg is not bad for these trucks. I just figured mine out today and I got 8.4 mpg Its pretty bad when my buddys truck has the same engine and is a auto but has about 2,500 more lbs and has a 6 in lift and is turning 35's he gets about 9-11 mpg mind you my truck is stock except for exhaust.