I changed the sparkplugs about three months ago ended up putting bosch plug in it changed the plug wires to all copper too
Didnt seem to help things at all just made it run smoother. I atribute most of my fuel problems to the state i live in. I live in missouri and until march of 08 I got around 12-13 miles per gallon. Then, our wonderful governer decided that since he owns an ethanol plant that he would pass a law stating that all gas sold in the state of missouri was going to have at least 10% ethanol in it.
Just ****ing wonderful

 

here's an old post on a test that took months
notice the year 2000 dates

when OD is off,
3rd gear locks up the torque converter clutch faster,
and the 'direct drive' 1 to 1 ratio of 3rd gear
is about 4% more efficient
than when additional planetary gearsets are turning in OD

Nonetheless, OD is ever so slightly better in mixed city style driving
====
Here's the results of several tanks of gasoline I kept track of with the OD
either on or off in city driving. After each tank fill up, I alternated
keeping the OD on or off.

I have since made 3 more 300 mile long mpg tests in city driving since i
posted the original 6 tests. My test results now look like this:
-----------
OD turned off runs:

7-19-00 14.32 mpg Amoco87
7-29-00 15.17 mpg Amoco87
8-08-00 14.23 mpg Amoco87
9-08-00 13.53 mpg Amoco87
---------------------------------
average 14.31 mpg
Standard Deviation =0.67

OD turned on runs:
(these were run inbetween the runs above)

7-12-00 14.16 mpg Exxon87
8-17-00 14.25 mpg Amoco87
8-24-00 15.49 mpg Amoco87
9-01-00 15.03 mpg Amoco87
9-12-00 14.35 mpg Amoco87
-------------------------------
average 14.66 mpg

As you can see, so far the OD on/off difference seems to be small with a
slight 0.3 MPG edge to leaving OD on while in city driving.

That is about a 2% difference and may be due to 'scatter.'

The difference between driving with OD on, or OD off, is that with
OD off the auto trans will quickly 'lock up' the torque converter clutch in
3rd gear,
but with OD on in daily driving 3rd gear will be with a slipping torque
converter and the TCC won't lock until you get in 4th OD gear above 50 mph.

Note also how much the MPG jumps around.
All realworld tests have 'random variation.'

The Standard Deviation of all 9 tanks of gasoline = 0.61
and the average of all 9 tanks was 14.50
so that 98% of the time
the MPG will 'naturally' be expected to jump around
in a range from 13.3 to 15.7

If I had done just two tests, and had by chance gotten the low 14.16 for the
OD on, and the high 15.17 for OD off, I would have falsely concluded that OD
on really hurts in city driving.

To get more reliable MPG numbers for Rams in city driving you need to do
multiple tests in a before/after/before/after sequence.

Even better would be to do
SAE/TMC type IV testing with two or more vehicles following one another
'convoy' style. Using this testing technique you can get accurate results in a
single day with just two long trips.

Most fraudulent MPG improvement devices continue to sell because of this
'jump around' MPG during normal driving.

If a MPG device DOES NOTHING AT ALL,
out of 100 people who try it,
50 will find that their next tank of gasoline got them better MPG,
and they will then boast what a wonderful device they just bought.

Out of the 50 who get worse MPG on the next tank, quite a few will be a little
ashamed they got gypted and stay quiet, and only a few will be brave enough to
post that the device is a fraud. Some of these will say: "Maybe I did
something wrong and I will check the MPG on the next tank and will drive more
carefully."
Half of these will "by chance" find better MPG on the second tank
and get the percentage reporting better MPG with the worthless device up to
75% !

 

I live in Missouri and know what your talking about BUT if you get gas at a BP they don't have to add the 10% Ethanol **** in thier gas due to were thier fuel comes from. I will NEVER run Ethanol in my stuff even my riders and garden tractor get 93

 

Stock, my truck got about 10 MPG in town.

With the upgrades I've got done now, 11 tends to be the average. At worst, a couple times I've gotten 10.5; at best, once I got 11.8.

I use 89 octane, always from the same Shell station on the way home from work. In SD, 89 octane is the cheapest... they give it a tax break because they put 10% ethanol into it. Minnesota has 10% ethanol in all their octanes now, and will be going to 20% soon.

I ran some of their 87 octane with 10% once on the way back from the in-laws (in MN), it sucked. Mileage on the highway was in the 12 MPG range, with a tail wind. I got 13 MPG on the way to Minnesota, and that was with a 30 MPH headwind! 89 octane with 10% seems to be an OK combo, but that 87 with 10% sucks.

 

holy ***** man! 10 mpg's with a 5.2! do you have a huge lift and huge tires on that thing? i've got a 2500 with the 5.9 V8 with 265 75r16 size tires (one size up from the stock size) and i get 12 pulling a 20 foot boat or 4 place horse trailer, or about 14.5-15 on the highway empty, and about 14 with a combination of both highway and city empty.

 

does their gas run way high though? im from springfield, and i dont think we have those around here. I may be wrong though

 

I try to avoid ethanol blended gasoline

boat owners are latest to involunarily find themselves in the 'school of hard knocks' classroom on ethanol blends:

http://blogs.orlandosentinel.com/spo...rd-motors.html

http://www.boston.com/news/local/mai...ry_of_ethanol/

http://www.dtnprogressivefarmer.com/...1bbd1804a10294

 

Last night the gas prices at BP was :

87: $3.42
91: $3.48
93: $3.58

 

I can tell you dont live in south west Missouri. Our gas prices are averaging about $3.20 cheapest its been here in the last 3 months. I will keep looking for a bp gas station though

 

It is the cheapest it been for a year here.