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Dodge Dakota Real World MPG Numbers

160 messages,  Last post on Nov 29, 2008 at 5:20 PM

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What is this discussion about? Dodge Dakota, Fuel Efficiency (MPG), Truck

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#158 of 160 '00 V6 2wd Club Cab 20% drop mileage by trapezecdn Oct 20, 2008 (10:16 pm)
Good evening folks. Longtime since I have posted or read. I have a Canadian 2000 club cab , V6 auto, 3.55 diff sport package with tire and handling pkg. I am in the USA and I strive to keep the mpg up on this vehicle. Currently at 292,000 kms (181,000 miles). AS the odometer is in km's the numbers are km/g. I would normally average 28-30 km/g mostly freeway with some city driving in the San Francisco area lots of hills, traffic etc... Best achieved was 35 km/g driving cross country to Toronto. Now iam averageing 25 -26 km/g even while keeping tire pressure up, using synthetic oil and doing regular maintenance re spark plugs and airfilters. I have tried bosch +4, platinums but generally go back to regular plugs as I have been advised about plugs possibly being too hot.   I know there are many factors, but any suggestions as to what may be causing this 20% drop in mpg. Worth doing the O2 sensors? I do have a bit of a problem with the #6 cylinder as the plug is usually more fouled than the others, but could still get good mpg when it was like this.   Any and all suggestions welcome. Replies to this message: tsimp (Oct 29, 2008 11:52 am) mrsincere7 (Nov 29, 2008 5:20 pm)
#159 of 160 Re: '00 V6 2wd Club Cab 20% drop mileage [trapezecdn] by tsimp Oct 29, 2008 (11:52 am)
Replying to: trapezecdn (Oct 20, 2008 10:16 pm) Unsure about the V6, but if you look in the Durango forum, this is quite common to O2 sensor connector issue. I would check there first. They speak of bypassing the ground wire on the sensor with a new one.
#160 of 160 Re: '00 V6 2wd Club Cab 20% drop mileage [trapezecdn] by mrsincere7 Nov 29, 2008 (5:20 pm)
Replying to: trapezecdn (Oct 20, 2008 10:16 pm) I have an '02 4WD 6cyl Quad Cab. I bought it at an auction in Oct,08. I had the plugs,fuel filter replaced, K&N air filter, trans and diff fluid changed, synthetic motor oil change. I thought these things would give me decent MPG.   Unfortunately I still couldnt get much more than 11 MPG even after all of that. It also seemed like my MPG was getting progressively worse. In this forum, somebody suggested changing the O2 sensors. I took that advice. I bought 2 Bosch universal O2 sensors from Strauss Stores in NJ, USA. I clipped the connectors from the old sensors and joined them with the new sensors ( the new ones came with a connector kit in the package ).   After I installed them, I went for a ride. I drove 42 miles and went right back to the gas station to fuel back up. I got 16.9 MPG. That was a dramatic change from my old numbers. Also , I was somewhat aggressive with the accelerator during my roadtest, but I believe if I would have took it easy, I could have got maybe 18-20 MPG or better. I also noticed an increase in power and acceleration. Anyone reading......if your O2 sensors have never been replaced ( and you have over 90k on the odometer) or you suspect they may be the cause of your poor fuel economy.......CHANGE THEM!!! I'm glad I did.   BTW.......my truck uses only 2 O2 sensors. One upstream and one downstream ( from the catalytic converter ). Combined they cost me $153.00 at the auto parts store. Be careful trying to save money ordering sensors from the internet . You could make a mistake and order the wrong sensors for your vehicle.

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