MPG's? (LOL)

Noelie84 · Post by **Noelie84** » Wed Jun 17, 2015 7:43 pm

I know that mileage really isn't the primary concern with these trucks, but I'm kind of curious what everybody is getting. Everyone's truck is probably different than how they came out of the factory at this point, but I think it'd be fun to see what people are averaging with different setups.
I've got a '69 longbed with a 318, mild cam (from an 80's 318, I suspect), inhaling through an Edelbrock 600 Performer and exhaling through headers into true duals out the back. Transmission is a non-overdrive A833 4 speed out of a 70's Dart, turning 3.55 gears.
If I play gentle with the throttle and just use the two primaries on the carb I can do mid teens (14-16) in mixed driving (50/50 split in town and back roads). But as soon as those secondaries kick in and I start using all 4 barrels...

On most of my tanks lately I've been getting about 10-12mpg's, because I just love that 4 barrel sound. There's something about hearing the secondaries kick in that makes me smile.

66patrick · Post by **66patrick** » Wed Jun 17, 2015 8:06 pm

My stock '68 D100 got nearly 18 as an all-time best for me, but on average, I get about 14.1 - 14.3 mpg with it (318 auto, 3.55:1 8-3/4").

Johninky · Post by **Johninky** » Wed Jun 17, 2015 8:42 pm

66 D200. 318 poly w/4bbl/Np435/4.56 Dana 70=11mpg.

JohnB · Post by **JohnB** » Thu Jun 18, 2015 3:21 am

70 W200 318/445/4.10...........14mpg

Noelie84 · Post by **Noelie84** » Thu Jun 18, 2015 5:36 am

66patrick wrote:My stock '68 D100 got nearly 18 as an all-time best for me, but on average, I get about 14.1 - 14.3 mpg with it (318 auto, 3.55:1 8-3/4").

That was with the stock 2bbl, right?

WD · Post by WD » Thu Jun 18, 2015 9:10 am

69 D100-128 318 with 2bbl Carter and an RV cam. Stone stock 727 and a 3.55 gear set in the rear axle. LT235/75R15 tires on all 4 corners. Front end and rear axle both rebuilt in 2011.
Averages 9mpg and tops out at 60 mph.

Post by **CSS-Registry** » Thu Jun 18, 2015 9:42 am

64 D100 + stock-ish 440 + auto trans + 323 sure grip + 235-70-15 = 10MPG. i can cruise 80 at 3000 RPM all day long and get 10. i can cruise at 60 and still. only. get. 10.

drive it like a granny or like i stole it. 10.

so i get 10 and have fun with it.

Ben

Noelie84 · Post by **Noelie84** » Thu Jun 18, 2015 11:04 am

lol.
440 problems.

My dad used to say that a Mopar with a 440 could pass anything but a gas station.

Post by **CSS-Registry** » Thu Jun 18, 2015 11:05 am

Noelie84 wrote:lol.
440 problems.

My dad used to say that a Mopar with a 440 could pass anything but a gas station.

your dad is a wise man.

it's not a problem if you know what the benefits are :)

Ben

Noelie84 · Post by **Noelie84** » Thu Jun 18, 2015 11:29 am

For us it actually was for plowing snow and pulling a firewood drag. We had a late-70's power wagon with a dual-quad 440 that was a real torque monster. But, it was also a really thirsty lump of iron.

oklamopar · Post by **oklamopar** » Thu Jun 18, 2015 11:45 am

Funny...
seriously, around 10 or 12, unless feeling froggy, well then when I let off the go pedal i see if i have enough to get to the fillin' station

Txas2step · Post by **Txas2step** » Thu Jun 18, 2015 12:33 pm

My '67 with '66 poly,2bl strom,np435,3:55.....getting around 9mpg

. Carb needs some tweaking( lean it out)...hope for 12mpg.

Noelie84 · Post by **Noelie84** » Thu Jun 18, 2015 12:51 pm

Just don't lean too far, haha!

383tim · Post by **383tim** » Thu Jun 18, 2015 4:06 pm

Had my truck 30 years.2 big blocks.last one 318 to save gas.I laughed after I did it.I missed the 383.I wore motors out,pulling horse trailers and cement trucks lol.gas cost...when I got in it in I needed it to do the job.I have a 361 now that I'm dropping in it.my wife is making me restore it.

Perkins64 · Post by **Perkins64** » Fri Jun 19, 2015 10:27 am

1964 PW300 Crew Cab, 6.354 Perkins, 4.88s, 38Inch Michelins, empty weight 6860

17 mpg at 62 mph. With my left ear flapping in the wind.

Noelie84 · Post by **Noelie84** » Fri Jun 19, 2015 2:59 pm

Perkins64 wrote:1964 PW300 Crew Cab, 6.354 Perkins, 4.88s, 38Inch Michelins, empty weight 6860

17 mpg at 62 mph. With my left ear flapping in the wind.

The only way to drive a Swepty.

Diesel FTW.

Of course, Diesel has been running about $1 more per gallon around here, so...

712edf · Post by **712edf** » Fri Jun 19, 2015 4:10 pm

75 W600 318 2bl, NP540, Rockwell 6.8 ratio
4.5 to 5 mpg

Bucky

kurt · Post by **kurt** » Fri Jun 19, 2015 5:36 pm

I have no idea what my truck gets but I did have a 1966 Belvedere 1 with the poly 318 and a 727. It got 21 mpg all day long.

66patrick · Post by **66patrick** » Sat Jun 20, 2015 5:22 pm

Diesel here in OKC is two cents LESS than corn-squeezins' (E-10) and a full forty cents LESS than real gas without ethanol.

@Noelie84 - yep, 2-bbl.

Noelie84 · Post by **Noelie84** » Mon Jun 22, 2015 6:36 am

We're running about $2.75 for regular and $3 for premium around here at the moment. Diesel is running around $3.60 at my local station.
I kind of miss the days right after I got my license when I could fill the tank on my crappy old K-car for $10

Sweptline.ORG

MPG's? (LOL)

MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)

Re: MPG's? (LOL)