getting horrible gas mileage
 

hello i have a 01 t&c 3.8l that is getting really bad gas milegae its getting on average 12-14 mpg when i was getting arond 18 the only thing i can think of is either the spark plugs or spark plug wires i replaced both i put in bosch 4 plaanium plugs and regular cables since on of the old ones ripped when changing plugs other than that i cannot think of anything else any suggestion and if i need a specific spark plug please tell me which one thanks for your time

no check engine lights? how is the tire pressure, how is the air filter, how many miles on the van. Are the wheels aligned right, how hast so you drive? Have you ever changed the o2 sensor(s). Any brakes sticking?

nope no check egine brand new tires with good pressure almost 90 thosand miles wheels are alligned brakes are good havent changed a 02 sensor

Getting the same
 

Hi
I have suffered from this since 2001 when I bought my car new in California.I now live in Sweden and it still drinks like crazy. So far NOBODY will attempt to fix it or acnowledge it as a problem. Tire pressure, air filters, you name it nothing helps.
Occasionally it will suddenly behave for a while (like when I needed to change a lambda sensor) then suddenly go back to drinking excessively. My highway miles can get as low as 12l/100km but around town it is 18-20l/100km. I have pretty much given up on this basket case. Chrysler does not seem to care and the standard answer is "no error codes, no problemo". Big help.

A

Hi, I have a 98 grand voyager and according to the trip computer its doing 18 mpg. I have seen folk on the web say they are getting around 25 or more mpg with the same car. I don't know how they are doing it as I have not been hammering the car. I love the car and really want to keep it I have wanted one for years but I have only used it this week for the commute to work and have already fed it £60 worth of fuel. looking into an lpg conversion to try and save money but I would be greatful if there are any answers or ideas other than those already mentioned. I was also looking into fitting an EGR valve and what was involved in that, to see if that would save cash on fuel. where I live I pay around about £1.02 per litre (not gallon, litre!)of fuel. Fuel in the uk is extortionate.

Hi,

I have a 1999 Grand Voyager that runs on LPG or Petrol. Petrol here (Reading, UK) is £1.06 per litre and Gas is 52.9p, so there is a good saving there. The car shows 13.2mpg (which by all accounts seems bad), which that translates to about 25mpg (in town) financially, which I didn't think was too bad for a 3.3l 7 seater.

I have a 2003 town and country with 3.8. I average 25mpg. but we use US gallons and not liters or Imperial Gallons. I don't go by the approximation gage that tells me how many MPG I get. I go buy the actual miles traveled divided by the actual gallons used. I find there's quite a variance between the gage and reality.

but if you are indeed getting poor gas mileage. go to www.fueleconomy.gov. they have a huge list of things to check besides spark plugs, alignment, oxygen sensors and tire pressure

Thanks for that website its great. I am not convinced yet by converting to gas. I am doing about 10,000 miles a year all extra urban miles so I suppose as I am not doing long runs on the motorway I should expect poor MPG. I have also noticed that the trip computer is a bit hit or miss, so I will monitor my usage and fuel over the coming weeks to work out what I am getting. I live on a hill and getting a proper reading is a nightmare. I went from a distance to empty of 72 miles on the level to zero when parked on the hill at home. Great car though. Love driving it.

The mileage is about the same I get for our 3.3 V6.

OT numbers:
New price: 55.000 Euro (81,125.37 USD).
Road tax: 508 Euro a year (749 USD).
Petrol: 1.40 Euro per liter (2 USD).
LPG: 0.60 Euro per liter (0.89 USD).

I have a 1999 3.3L V6 and get 15 miles to the gallon (US) and I treat it like a baby.

maybe I aint so bad off then. Still not gonna trust the trip computer I will work out over the next few weeks what I am getting.

Hi Bob
I run a 3.3 Grand Voyager on LPG & get about 20MPG dotting about, on a recent long trip with a ROOFBOX @ 70mph i got 20.1 MPG.
I was doing 20,000 miles a year at first so I got my £2,200 for the conversion back in a year. You can get it converted cheaper though, my mate had his CRV done for £1,600 last year.
I've had the conversion for 3 years now, I'm up to 165,000 miles [60,000 on LPG] and its sweat as a nut.
I'd do it if you intend keeping the car & you can get gas easily near your home.
Hope this was useful
Gareth

PS. I find the only way to propperly check fuel useage is full tant to full tank. Mulitiply the liters by 4.54, that gives you gallons. Then devide the miles by the gallons eg 200 / 10 = 20 mpg

Hi Gareth, Had so many differing reports on LPG. A conversion here is about 1600 and that is a mutipoint system. I reckon it would take 2 years to recoup the costs but I really do want to keep the car and intend spending money on it but I still dont know if a conversion is where I wannna spend the money. I understand the bit about working out MPG I did it that way before and I will do it that way again. Then I will need to look at the numbers again. Thanks for the info.

Robert.

No problem, glad to help. :-}

Gas Mileage
 

My 05 T&C is rated 18/26 MPG. Around town I get 14-15 and on the highway, the absolute best is 21 mpg. Chrysler is notorious for inflating their mileage claims. My Durango that was supposed to get 13/18 was lucky to break 10 mpg! BTW, the overhead display value is always 1-2 mpg above the actual. Trade it in if you can and don't mention the low mpg....

If I'm on my BEST behaviour - smooth gentle driving, minimal braking, plenty of coasting and motorway cruising at 55mph then I can fairly easily achieve 27mpg out of my 3.8 :D

Normal driving, 18-20 mpg - it's pretty flat around here TBH ;)

That is calculated mileage, not from the trip computer - coasting at 40mph down the back lanes returns 99mpg on the realtime display, that always makes me smile... :)

God that is sad, it made me smile too! then I accelerate and watch it drop to 6 or 7 and start crying... LOL!