When I bought my 2002 jetta tdi brand new I was getting 40 plus miles a gallon. Now I'm only getting 33 miles a gallon. My car is an automatic which are said to get lower gas miles then a stick shift. Any Ideas how I can fix this problem?
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Cars are just like airplanes. Weight will always have an effect on fuel milage. Check your tire inflation. We find, in our shop , that low tire inflation in the biggest cause of poor milage. (beside a lead foot like mine)
That specific transmission is known for failure. Sometimes it's premature failure (in your case) and sometimes they have 150k miles, but that specific automatic transmission will always fail. There are plenty of stories online about premature failure of the 01M VW transmission...
I have the same issue of low gas mileage. My 2008 Kia Rondo with V6 (2.7Lt) gets 20-21 mpg in average. Even for highway mileage, it is around 21-22mpg. Very poor gas mileage. Disappointed. I hope it would improve in the future.
Wide tires make less gas millage, get narrow wheels, let the car accomplish speed slowly from 0 to 30, look at air filter,if shortly replaced, oxygen censor, 15 miles is normal 16 miles per gallon is good for a V8
sounds like the pump is weak, or the filter in transmission is almost stopped up. either way not enough fluid pressure to torque converter. If it was me I would have the fluid changed and a new filter installed. In all of my dealings with transmissions 80% of the time once they are messing up it is too late. sometimes when you change the fluid once it is acting up it gets worse. that is just a risk you have to take though because the outcome will be the same more than likely
If you have the RT with the 5.7 hemi as stated I do not beleive you ever got 27 to 29 miles to the gallon. the best that car will do is 24 - 25 miles to the gallon and that is on a pefectly flat and straight road at about 60 miles an hour. As fas as the MDS the best way to tell (if you can't feel it change) is to use a tool such as the dashawk that monitors the engine stats. I disabled the MDS for several reasons and really so little to no change in gas milage. I do not beleive the MDS helps as much as people would like to think. I have added a lot of mods to my hemi, but still think that 14 - 18 mpg under normal driveing is good for this car