Home Travel Stories Gas Logs 1972 DODGE Dart Swinger 225-1 bbl MPG= 13 City
1972 DODGE Dart Swinger 225-1 bbl MPG= 13 City PDF Print E-mail
Written by Double Dragon
Sunday, 31 October 2010 20:44

1972 DODGE Dart Swinger 225-1 bbl MPG= 13 MPG City

oneownercollectorcar.com

Writing and photography copyright D. S. Brown

Metric=  3.7 L engine -18 L/100 km

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1972 Dodge Dart Swinger 225 1 barrel when new MPG= 16.4 overall.

The Dart Swinger was an economy car in price and size. By today's standards it's a large sized car. In 1972, the Dart wasn't much smaller than the 'intermediate' sized cars. The four door 111 inch wheelbase is one inch shorter than GM intermediate wheelbases although overall length is shorter. The two door Dart 108 inch wheelbase matches ponycars of the era but adds a usable sized rear trunk.

The standard Dart engine is a 100 HP slant six 198 cubic inch engine with a single barrel carburetor. WORLD CARS 1972 estimated 17.2 MPG for this car. Many buyers moved up to the 225 cubic inch one barrel slant six which produces 110 HP and 16.4 MPG according to WC. The Dart used to calculate these results had the 3 speed manual shift, 3.23 axle ratio and 6.95x 14 inch tires. Upgrading from a 198 to a 225 raised top speed from 92 to 98 MPH according to WC's calculations. The optional engine adds 11 pounds to the 2,940 pound car.

LEMON AID 1981 EDITION says a 4 door Dart with 6 cylinder engine, automatic transmission and radio weighs around 2,900 pounds. LA estimated MPG to be 20 MPG using regular fuel. LA doesn't specify if the MPG is overall average but does say that the MPG quoted is what the car is optimally capable of under ideal conditions.

WC estimated 318 2 barrel MPG to be 13.9 and top speed at 104 MPH. Weight balloons to 3,015 LBS.

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OOCC 1972 Dart Swinger MPG= 13 City

The full story of the OOCC 1972 Dodge Dart Swinger can be read in the TWENTY YEARS PLUS section of this website where the details of the car have been discussed. The OOCC Swinger has original engine and carburetor, starter, and alternator. The Swinger has original equipment spec replacement automatic transmission, radiator, hoses, belts, heat stove, water pump and exhaust system.

A standard Dart Swinger Special 2 door hardtop includes cigarette lighter, cloth and vinyl bench seat, 198 slant six with 3 speed manual on the tree, and 6.95x 14 blackwall tires. The OOCC Swinger has a generous helping of options for an economy car. It has automatic transmission, power steering and power drum brakes. The Swinger is loaded with such niceties as a radio, trunk light, dual horns, cigarette lighter, split bench with fold down center arm rest, day/night mirror and simulated wood grain inserts in dash and door panels. A base Swinger weighs 2,920 pounds. Throw in the automatic, power brakes and the larger six and weight is at least 2,960 pounds.

Long term owner Edna added an aftermarket cable release hood lock, makeshift overflow reservoir for the radiator (standard is an overflow tube), heavy duty battery, larger than stock radiator and a gigantic power brake booster (which necessitated the repositioning of the air cleaner inlet tube), and radial tires.

The gas logs below reflect driving in the fashion expected of an old lady not using the car for a work commute. Short trip operation, lengthy idle times, side streets where constant starts from a stop each block combined with speeds that rarely exceed 25 MPH all kill your gas mileage. Chevron was used for all fills except one Esso fill at 91,663 miles. Mileage was tracked down to the tenth of a mile so the tenths are included in these logs. The car carried the driver and one other person the majority of the time. The car was loaded with a 5 Litre jug of engine oil, and a few tools in the trunk. Short trips were made which prevent total warm-up of engine.

The rear drum brakes became superheated on one side and grab so badly that the outisde hubcap is hot to the touch within a couple of miles of driving. A sticking emergency brake cable causes one brake to adjust while the other one doesn't, resulting in out of synch braking. The blued drum suggests that the brake was seriously grabbing which eats up gas mileage. Despite these conditions the car did fairly well.

Odometer  Gallons   Octane  Full Tank?   MPG (uncorrected)

91,466.4       11.4      87      Full tank      N.A. MPG
91,568.1        7.4       87      Full tank      13.7 MPG
91,663.6        7.7       87      Full tank      12.4 MPG
91,710.5        3.8       87       X 
91,760.2        3.8       87       X 
92,402.0        9.3       94       Full tank     N.A. (Missing entries)
92,512.5        4.8       94       X
92,616.5        4.6       87       X

 

oocc-dragon-end

Last Updated ( Monday, 04 August 2014 22:04 )