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Dodge Charger Routine Care & Maintenance

59 messages,  Last post on Aug 02, 2009 at 9:00 AM

You are in the Dodge Charger Forum. Your Hosts are pat & karens

What is this discussion about? Dodge Charger, Dodge Charger SRT-8, Exterior, Interior, Oil, Sedan


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#13 of 59
Re: Maintaince Problem Question [xtec] by batista
Jun 19, 2007 (1:53 pm)
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Replying to: xtec (Jun 19, 2007 11:55 am)

Hi xtec.
 
That's excellent fuel economy the 3.5L Charger.
My fuel economy is improving a bit since I only have 4500 miles on my car. My best so far has been 17.2 mpg (worst was 14.8) almost all city. I reset the trip odometer after each fill-up.
You have an edge in fuel economy because of the warmer climate. I live in the pacific northwest and have yet to use AC because summer hasn't arrived quite yet.
Once I have more miles I will try your suggestion of fuel injector cleaning.
#14 of 59
Excellent FE, indeed... by discgolfer99
Jun 19, 2007 (2:43 pm)
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Even when I "baby" my 3.5L SXT all the way through a tank, I think the best I have done was 18 MPG (city). It's just not nearly as fun though, so "Speed Racer" it is...
 
Next month, she'll be 2 years old. As of today, I wouldn't trade this car for ANY other car on the market (in the same price range). Now, when the new Challenger comes out, I may have to seriously consider getting a two door. That thing looks awesome...
 
As for the Hemi, when I bought my Charger, the only version they had with the Hemi included Nav, steering wheel controls, and some other features, all of which I would love to have gotten. The only thing was, it was $5500 more than the SXT, ant they were not willing to take ANY $ off the sticker. I left, hoping they would stop me on the way out, which they did not. I went back an hour later to "negotiate" on the SXT, and managed to get $2000 off...
 
CHARGE ON !!!
#15 of 59
Re: Excellent FE, indeed... [discgolfer99] by xtec
Jun 19, 2007 (6:51 pm)
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Replying to: discgolfer99 (Jun 19, 2007 2:43 pm)

I do have a advantage like batista says I live in AZ and its been in the 90s the last month or so,now its in the 100s and that helps.plus I run premium.I'm going to have to use my A/C so that will drop it around 1 mpg.Plus I drive like A old lady.With the price of gas im driving like there is a egg under my gas pedal.
#16 of 59
Re: Excellent FE, indeed... [xtec] by batista
Jun 19, 2007 (7:52 pm)
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Replying to: xtec (Jun 19, 2007 6:51 pm)

Why premium? Do you notice a difference?
When I purchased my car the dealer filled the tank up (cheapskates) with regular and I wasn't happy about it because I had read that these cars require mid-grade. Have been using 89 almost all the time.
I tried a tank of 92 and it felt a bit smoother but no difference in fuel economy. How about you?
#17 of 59
Re: Excellent FE, indeed... [batista] by discgolfer99
Jun 20, 2007 (8:27 am)
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Replying to: batista (Jun 19, 2007 7:52 pm)

I used to put 89, since the owners manual said too. But when gas went "RIDICULOUS" (here is So. Cal), and I had also read some 'expert' say you only need to use >87 if your car "pings" with 87, I tried the 87, and found no noticable difference or pinging...
 
At least gas is back under $3 ---> YEAH !!
#18 of 59
Re: Excellent FE, indeed... [batista] by xtec
Jun 20, 2007 (10:10 am)
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Replying to: batista (Jun 19, 2007 7:52 pm)

Yes I notice the differance,and I seen hot rod books which ran a car on all three grades, and premium had the best performance.The 3.5 is a high output engine,so you should use nothing less then 89 octane.If you have a engine thats not high output,premium would be a waste.I do recommend going up one grade to get better mileage,and performance.I proved it with my wife's 03 Mazda Tribute.It calls for regular,but I put in mid-grade.This is the 3.0 liter V6.Its mileage is rank 19city from the factory.I'm getting over 20 with A/C.little over 21 without A/C.Plus higher grades have more detergants to keep the inj. clean.And STP fuel Inj. cleaner every 4k miles.If you have a K&N get rid of it.It dragged my mpg and performance down.The stock filter is a high air flow and I found it was better then the K&N.
#19 of 59
Headers for the 3.5L Charger by batista
Jun 20, 2007 (11:37 am)
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http://estore.websitepros.com/802805/Detail.bok?no=1210
 
Gains:
9 RWHP
17 RWTRQ
 
Xtec what do you think? Worth getting?
#20 of 59
Re: Headers for the 3.5L Charger [batista] by xtec
Jun 20, 2007 (12:00 pm)
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Replying to: batista (Jun 20, 2007 11:37 am)

It looks pretty good and good price.Add that to your duals and you will see a improvement,and it should help with the MPGs.I'm done putting money in mine,but if you have the bucks i think it would be beneficial.Let me know if you do it.The duals give you 10 HP and 6lbs. of torque.Add the headers your talking about 270 horse,not bad.
#21 of 59
Re: Headers for the 3.5L Charger [xtec] by batista
Jun 20, 2007 (1:39 pm)
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Replying to: xtec (Jun 20, 2007 12:00 pm)

Some R/T owners have reported error codes showing up when having headers installed. Not sure if its worth the trouble.
Also, I am not a mechanic like yourself so I would have to pay for the install.
I will consider it when other owners are satisfied with their results.
 
Also, a few people have superchargers installed w/3.5L engine. A manufacturer in Florida claims 65 rear wheel horsepower increase for $2500.00. Not bad but not worth it because it would void your warranty.
#22 of 59
Re: Headers for the 3.5L Charger [batista] by xtec
Jun 20, 2007 (2:58 pm)
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Replying to: batista (Jun 20, 2007 1:39 pm)

I'm retired now with a bad back,so I would have to pay to get the headers put on.Thats whats kills me,I have to pay for things I use to do for a living and now only make sure I don't get ripped off ,like couple places tried to do to me,but caught them ripping me off.I still have the knowledge.As far as the codes showing up, they would have to reprogram the computer.Advance the timing,and adjust the fuel ratio.I would like to know how the 3.5 with the supercharger runs.By the time you put all that money into it,you could get the R/T.
 
    

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