whats ur fuel economy in a 3.3L - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 26 (permalink) Old 05-11-2011, 12:34 AM Thread Starter
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whats ur fuel economy in a 3.3L

i get between 100-120 miles on a half tank of gas which equals out to about 13.5 -- 16 mpg. and this don't seem right to me. especially since i got all new o2 sensors and a cold air intake. so my question is what are other users getting for fuel economy outta their 3.3L treps. thanks
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post #2 of 26 (permalink) Old 05-11-2011, 08:18 AM
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On my 1996 3.5 Intrepid l used to get around 24mpg on the highway, that has dropped to around 19mpg now but it probably could use a good tune up too. 13mpg does sound a bit low to me.
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post #3 of 26 (permalink) Old 05-11-2011, 08:35 AM Thread Starter
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On my 1996 3.5 Intrepid l used to get around 24mpg on the highway, that has dropped to around 19mpg now but it probably could use a good tune up too. 13mpg does sound a bit low to me.
god i wish mine was ANYWHERE in that range!!!!!
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post #4 of 26 (permalink) Old 05-11-2011, 08:37 AM
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on the OTIS I get 24.1 mpg that is mostly backroads and sitting in traffic but also some highway. I get more like 180-200 out of 1/2 tank.
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post #5 of 26 (permalink) Old 05-11-2011, 08:56 AM Thread Starter
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on the OTIS I get 24.1 mpg that is mostly backroads and sitting in traffic but also some highway. I get more like 180-200 out of 1/2 tank.
omg! i dont get it! what i've got done that should help fuel econemy is :
fuel filter
fuel pressure regulator
o2 sensors (all 4)
cool air intake
i've cleaned the air intake
its got new plugs and wires
new coil pack (dunno if this helps mpg's but its new anyway)
camshaft & crankshaft positioning sensors
what am i missing? i could use the break with ALWAYS filling up!!! i even tried 89 octane and no difference!!!
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post #6 of 26 (permalink) Old 05-11-2011, 08:57 AM
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With the price of gas we all may want to go to horse and buggy lol.

Grif maybe a tuneup and new air filter might help your mpg some, l use stp fuel injector cleaner in mine periodically also, which helps too.
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post #7 of 26 (permalink) Old 05-11-2011, 09:01 AM Thread Starter
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With the price of gas we all may want to go to horse and buggy lol.

Grif maybe a tuneup and new air filter might help your mpg some, l use stp fuel injector cleaner in mine periodically also, which helps too.
tuneup what? i've done a full tuneup. are you talkin oil change and all that cuz i did that i just didn't write cuz i didnt think it'd help fuel ecomomy. and i got a brand new spectre air intake system (well its like 2 months old, but still kinda new) and i also have ran seafoam thru the gas tank as well. that should clean injectors right?
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post #8 of 26 (permalink) Old 05-11-2011, 09:02 AM Thread Starter
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unless there is more stuff on this car i can change that would help...then i say bring it on!!! ill gladly change everything!!!
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post #9 of 26 (permalink) Old 05-11-2011, 09:07 AM
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lt sounds like you have covered it pretty well, l'm not sure what else to tell you since l'm not a mechanc. Did it ever get good gas mileage before all this or has it been like this since you got it?
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post #10 of 26 (permalink) Old 05-11-2011, 09:08 AM
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l've never heard of seafoam so can't answer on that, l just always use stp fuel injector cleaner.
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post #11 of 26 (permalink) Old 05-11-2011, 09:22 AM Thread Starter
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lt sounds like you have covered it pretty well, l'm not sure what else to tell you since l'm not a mechanc. Did it ever get good gas mileage before all this or has it been like this since you got it?
i bought the car in december, but didn't start driving it until january cuz i was in the bahamas. but it actually got WORSE gas mileage and the bit i've done has helped sum....not much....but sum.
darn it.....i wish there was just something i have been overlooking....
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post #12 of 26 (permalink) Old 05-11-2011, 04:14 PM
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15-16 MPG Strictly city driving, max of 45 MPH with some heavy acceleration to get around the slow pokes ;-).
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post #13 of 26 (permalink) Old 05-11-2011, 04:41 PM
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I only get about 13-14mpg in my 96 3.5 in city driving. On the highway, I do get at least 24mpg though. There's a big difference if you're doing lots of stop and go. I had my car all tuned up with new plugs, wires, and filters recently too. I'm very easy on my accelerators and brakes, driving in the city, my rpms never go past 2,000 rpms,so imagine if I drove it hard haha.
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post #14 of 26 (permalink) Old 05-12-2011, 09:00 AM Thread Starter
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phew....the last two posts make me feel a little better. i drive strictly in the city as well. don't even have to use the highway hardly ever. usually short trips as well...6 miles or below.
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post #15 of 26 (permalink) Old 05-13-2011, 01:56 AM
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mpg

im getting 18 miles mpg city driving, complete tune up, compression equal across all
cylinders. 1996 eagle vision 3.3 also use seafom..
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