What kind of MPG do you get with your 318?

[Harlow]

I recently bought a 1967 Mercury Cougar as a flip project. I've been driving it daily for the past few weeks. Its got a 289 2V. I found it gets about 17-18 MPG. I've heard it would get better MPG with a 4V. Anyways its actually really nice to get good gas mileage, especially if you drive the car a lot. So what do you guys get on your 318s? When I sell this cougar I think I'd like to get another 68-72 mopar with a 318 or 340...   

[BigBlackDodge]

Last I checked I got 15-17.   Thats with 3.23 a 600 cfm eddy carb and driving sensibly..........hahahaha. Not alot of stop and go traffic either.



BBD

[440charger68]

i get about 17 with a edelbrock 550cfm carb.  Its great in my 68 charger, saves lots of gas, but everyone thinks that all chargers came with power. Everbody always wants me to spin the tires.

[MoParMetal]

i believe i get 17-18, but thats in the duster. its got the tiny 7 1/4. highway gears. a warmed over 318. 600 cfm eddy. and six pak scoop. it may be a little more than that. my speedo and odometer dont work so i can't be too sure.

[PocketThunder]

i get 22 in my 69 C500 with a 225, 904 trans, and 2:76 gears.. does that help?

[Death1970Proof]

i get 22 in my 69 C500 with a 225, 904 trans, and 2:76 gears.. does that help?

Did you have to swap k frames to put a slant six in there?? Thats awesome!!

[PocketThunder]

i get 22 in my 69 C500 with a 225, 904 trans, and 2:76 gears.. does that help?

Did you have to swap k frames to put a slant six in there?? Thats awesome!!

  http://www.dodgecharger.com/forum/index.php/topic,30500.0.html

[Death1970Proof]

i get 22 in my 69 C500 with a 225, 904 trans, and 2:76 gears.. does that help?

Did you have to swap k frames to put a slant six in there?? Thats awesome!!

  http://www.dodgecharger.com/forum/index.php/topic,30500.0.html

Where did you ever find a 6cylinder kframe.........

[Charger74SE]

I'm getting 24 mpg with the oem 2 barrel, 904 trans, 2.71 gear setup.

[MOPARHOUND!]

23.5 MPG on the Highway at 70 MPH, 318/904/8-1/4 with 2.71 gears, '69 Charger, 135,000 miles on the original stock 2 barrel engine.

[PocketThunder]

i get 22 in my 69 C500 with a 225, 904 trans, and 2:76 gears.. does that help?

Did you have to swap k frames to put a slant six in there?? Thats awesome!!

  http://www.dodgecharger.com/forum/index.php/topic,30500.0.html

Where did you ever find a 6cylinder kframe.........

1hot68 had a 70 Coronet parts car that i got the drivetrain from.

[Rolling_Thunder]

I used to get around 20 mpg with my old 318 2bbl...     tied to a 904 and 2.76 gears...     that was also alot of tear assing around in high school

[74Rallye]

I sold a 74 Charger with a 318/904 last year and the guy calls me up after his 250 mile drive home to tell me he got better than 20 mpg. It was bone stock except for 15" wheels.

[69_500]

Lets see here in the 69 SE I sold I was getting 18.5 mpg and that was in a 318 2bbl, with a 3.55 sure grip rear end. Running on stock 14" tires. That was as long as I was running around 65 mph on the highway. Averaged around 15 mpg total in the time I had the car.

[terrible one]

i get 22 in my 69 C500 with a 225, 904 trans, and 2:76 gears.. does that help?

Hehe, the '73 Dart choptop I got from Trav averaged that exact mpg with the same combo. Beautiful!

[Mike DC]

 
My Charger went a whole mile on a gallon of gas one time. 

[The70RT]

I have a Ram SLT with a 318. 350 gears and on the highway I get 13-14  in town in the winter 9-10 at the most.

[694spdRT]

I have a Ram SLT with a 318. 350 gears and on the highway I get 13-14  in town in the winter 9-10 at the most.

You get the same mileage as the 2001 Ram 2500 V10 4wd I used to have. 

[Death1970Proof]

Thats some pretty crappy gas mileage 

[The70RT]

Thats some pretty crappy gas mileage 

I put a K&N filter in and one of those vortec aluminum TB spacer and it didn't seem to help much. I need to change the rear gear. It weighs 5,400. It is hard to believe since I had a 79 ford extended cab long bed with a 400 and it weighed 4,600. I did add nerf bars and a front brush guard.