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1974 PLYMOUTH Fury 360/ MPG= 11.3 Overall PDF Print E-mail
Written by Double Dragon
Monday, 27 December 2010 11:26

1974 PLYMOUTH Fury 360/ MPG= 11.3 Overall Average

oneownercollectorcar.com

Writing and photography copyright D. S. Brown except for AMA spec sheets and Fury brochure copyright Plymouth.

74-fury-brochure-speedo-gas-gauge

Metric= 5.9 L engine- 20.8 L/100km overall average.

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1974 PLYMOUTH FURY MILEAGE WHEN NEW- 11.9 MPG

Thomas McCahill was sorely disappointed with the performance of a 1974 Fury Gran Coupe in the Nov 1973 MECHANIX ILLUSTRATED test. Uncle Tom unfavorably compared the 1974 to the earlier 1970 Fury. The test car weighed an amazingly heavy 4,656lbs. It had a 400-4 barrel and Torqueflite. The non performance 2.71 axle may have contributed in a large part to Uncle Tom's problem with the car's 11.2 second 0 to 60 times. The Fury was shod with G78x15s and had a top end just over 110 MPH. Uncle Tom actually drove his cars full out to determine top end. He didn't give specifics of gas mileage except to say it was 'good'.

WORLD CARS 1974 came up with 105 MPH and 11.9 MPG for the Fury 400-4. These are calculated figures not the observed ones McCahill gives. They agreed with Uncle Tom that it had 310 Ft Lbs of torque but differed with his 200 HP figure. They state 205 HP for this engine.

The May 1974 issue of Motor Trend carried an ad for the Honda Civic comparing it to other cars in a partial list of the 1974 EPA figures (as of Feb 19, 1974). The 1974 Plymouth Fury Wagon rated 8.9 MPG City in the EPA system. The listing for the sedan and highway figures weren't reproduced in this ad. As can be seen below in the AMA statistics the Fury Wagon outweighs the other Fury models. The Station Wagon shape will also rob it of gas efficiency, so the Fury sedans and hardtops should theoretically do better. The Station Wagons came standard with a 400-2 barrel rated at 185 HP.

LEMON AID 1981 EDITION says a 4 door Fury with the standard 318 engine, automatic transmission and radio weighs around 4,460 pounds. LA estimated MPG to be 18 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.

74-fury-ama-specs-weights-excerpt

WORLD CARS 1974 claims the 4 door Fury with 2.71 axle was only capable of 102 MPH when fitted with the 180 HP 360 2 barrel. WC didn't list the 200 HP 360 4 barrel nor the performance potential of the 3.23 axle. The OOCC Fury was able to peg the 120 MPH speedometer which suggests either huge speedometer error or the WORLD CARS calculation is low.

Regular readers of these GAS LOGS will have discovered that the WORLD CARS 1974 numbers are always lower than real life tests of top speed. Earlier and later editions of WORLD CARS print higher MPH for several models identical to the 1974 versions. The fact that Uncle Tom McCahill was able to squeeze a touch more than 110 out of a car that WC 1974 pegs at 105 MPH supports this theory.

In the April, 1975 MECHANIX ILLUSTRATED Uncle Tom tested a 1975 Gran Fury, which was a carryover of the Fury I, II, III model from 1974. The Gran Fury weighed 4,430 pounds which is lighter than the 1974 Fury Uncle Tom drove the previous year, and it also had the advantage of radial tires. The Gran Fury hit 115 MPH top speed using a 360 180 HP engine. Somehow he cranked 20 MPG out of that car driving with an egg under his foot for the economy portion of the test. WORLD CARS 1975 said this car had a top speed of 112 MPH and got 12.1 MPG.

WORLD CARS figured 1974 gas consumption to be 12.6 MPG for the 360 2 barrel using a formula of "medium load at 60% of maximum speed over a varied run", meaning a cruise speed of 62 MPH. No figures were provided for the 360 4 barrel.

On Sep 26, 1973 the newly engineered Fury appeared in dealership showrooms. Below is a blurb from the 1974 Plymouth brochure about the redesigned Fury.

74-fury-brochure

The 1975 Fury was a B body Satellite rebadged as a Fury in an attempt to down size a bit. The Gran Fury retained the usual giant Fury C body with its 122 inch wheelbase. LASD test results for police fleet bidding compared a 1975 downsized Fury to the revolutionary small fast economical Chevrolet Nova and the AMC Matador. The Matador was very popular in Southern California. The TV show "Adam-12" chose a Matador for the patrol car based on the dominance of the Matador in real life California police forces. Despite the popularity of the Matador, the small Nova was quickly building a stellar reputation with its excellent performance.

The LAPD regarded the Fury was old news in 1975. Running the 360 through a Torqueflite and 3.23 rear gears with 15 inch wheels resulted in 11.8 MPG even with the reduced curb weight of the "Satellite/ Fury", which still weighed a hefty 4,330 pounds. It did manage 0 to 60 in 8.5 seconds. This is partly explained by 300 less pounds than the C body MECHANIX ILLUSTRATED CAR, and partly due to a 3.23 axle.

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1974 PLYMOUTH FURY HISTORY AND CONDITIONS OF USE- 11.3 MPG Overall

74 fury

The OOCC Fury was either a one owner car, or possibly an ex police vehicle which was then owned by one person for many years. Records show that despite being sold July 12, 1974, it wasn't registered to a private owner until Aug 8, 1975. To add to the confusion this owner didn't insure the Fury until March 1, 1976. Either the car sat unused on a car dealership lot for over one year, or it was in service for the first year as a police car.

The OOCC Fury had logged 60,000 miles by 1979. The first owner's gas logs indicate an average 8,500 miles of driving per year. At this rate he logged 25,000 miles between March 1, 1976 and March 1, 1979. It's possible the first owner took some major road trips during the first period of ownership. He did go on a few road trips later on, so this is a likely explanation. If he didn't take road trips the logs leave 30,000 to 35,000 miles prior to March 1, 1976 unaccounted for. Police cars in moderate sized cities rack up about this much mileage per year.

The VIN tells us that this was a Plymouth Fury I, from the low price class vehicle category, not the Police code category. It was manufactured in Belvidere, Illinois with a fairly high sequence number which suggests a build date later in the year. Police fleets are usually ordered and built first thing in the model year. This car also has a regular Fury 120 MPH speedometer, not the police 140 MPH calibrated speedometer.

Police car aficionados are divided over the pedigree of the OOCC Fury. It is possible it was an unmarked ex police vehicle despite the above facts. The car comes from a small town up North where retail vehicles have been known to be purchased for fleet service. The car has holes cut in the dash and extra wiring that serves no obvious purpose. It either once had a major stereo system or else some kind of police equipment hooked up.

The OOCC Fury has a 360 engine with electronic ignition, automatic transmission, power steering, power brakes, and front disc brakes. The Fury is painted Lucerne Blue Metallic with a black interior which is a popular police color scheme. The OOCC Fury has police type equipment: heavy duty suspension, heavy duty cooling system, heavy duty wheels, heavy duty charging system and auxiliary transmission cooler.

This heavy duty equipment is also consistent with the long term owner's use of the car as a tow vehicle. The tow package for the Fury included heavy duty suspension, 15 x 6.5 inch wheels, high capacity radiator and seven-blade fan, auxiliary transmission oil cooler, 3.23:1 axle ratio, built- in seven- wire harness, trailer electric brake controller, variable load turn signal flasher, heavy duty 65 amp alternator, 440 amp battery, dual battery charging system, and load distributing hitch platform.

The owner of the Fury had just turned 47 years old prior to insuring the car. He was a mature driver and owner who religiously maintained the car. He added many options to the car such as auxiliary temperature and oil gauges, vacuum gauge, compass, CB radio, and 4 ply high speed rated bias ply tires. It's possible that he added the load distributing hitch and other trailer specific equipment himself after purchase.

Below is a list of some of the weight adding options listed for the AMA spec sheet. No mention of the trailer towing or police package equipment is made.

74-fury-ama-specs-opt-weights-excerpt

The OOCC Fury certainly weighs more than the standard Fury curb weight of 4,185 pounds. The auxiliary transmission cooler and extra fluid load, block heater, steel reinforced boxing around the gas tank, load distributing hitch platform, heavy duty suspension, heavy duty charging and cooling must account for at least 100 pounds. The first owner added gauges and CB radio and carried tools in the trunk adding another 100 pounds.

The OOCC Fury GAS LOGS cover the period when the car was driven up North in a small town with a mix of city driving as well as regular camping road trips at steady highway cruising speeds. The car was frequently used as a tow vehicle for a trailer. The temperature year round was far below zero in winter for six months a year and marginally warm in summer. The owner did oil changes and maintenance on the car at minimum recommended intervals.

The original (?) owner's second book of gas logs is reproduced below. The first book is missing. For the existing logs, his record keeping is meticulous and exact with missing entries for 70,000 to 75,000 miles where a page was torn out. Fills are recorded in Liters which are converted to gallons in a list below the original gas log images. By 1979 when these logs begin, about 50% of gasoline in North America was unleaded. Leaded gas was still widely available and cheaper as well as being more suitable to use in a 1974 non catalytic convertor car, so it's likely that the fill-ups listed were of leaded gasoline for the first few years of the logs.

74-fury-gas-log-pg-02

The log jumps from page four to seven. The missing pages five and six covered 4,235 miles. In the back of the log the original owner's notes summarize a 1,281 mile road trip taken Aug 8 to Aug 17, 1980 from 71,615 miles to 72,896 miles. A fragment of the road trip was entered in a trip diary. Point form notes list disasters encountered: "... toilet broke, got lost, flood, CB antenna broke, blew exhaust pipe." The first 80 mile stretch took 1 hour 20 minutes which works out to 60 MPH. His trip mileage was 10.9 MPG. Low mileage is to be expected when towing a trailer, even at low speeds.

74-fury-gas-log-pg-04

74-fury-gas-log-pg-08

74-fury-gas-log-pg-10

74-fury-gas-log-pg-12

74-fury-gas-log-pg-14.

74-fury-gas-log-pg-16

74-fury-gas-log-pg-18

The missing pages of logs from 70,847 to 75,082 equal 4,235 miles not accounted for in the stretch from 65,290 miles to 101,365 miles. 2,828 gallons minus the first fill of 14.2 equals 2,813.8 gallons used over the documented 31,840 miles. The first owner averaged 11.3 MPG overall.

74-fury-gas-log-pg-21

The logs from 101,365 upwards are from the subsequent owner who never used the OOCC Fury for towing and rarely carried much in the way of loads. The Fury was parked outside and driven in severe cold weather for six months a year. The Fury was driven very gingerly and slowly until operating temperature was achieved. The block heater was used for about a third of the startups.

Work routes covered about 10 to 20 miles one way, mainly on highways. The Fury tracked straight and held the road solidly with a very smooth ride right up to an indicated 120 MPH without float or lift. Top speed highway running was common in good weather. During busier traffic or snowy icy conditions a 60- 70 MPH cruise speed was the norm. Minor amounts of stop and go driving appear in these logs. Oil was 10W30. The original owners' maintenance schedule was continued. No particular brand of gasoline was preferred over another. Leaded gasoline was used when available but by this time most gasoline dispensed was unleaded gasoline and additionally would have 10% ethanol added which reduces the total energy available in the gasoline which will lower MPG numbers.

74-fury-gas-log-pg-22

There are missing entries from 102,819 to 109,005. The last 3,000 miles of entries in the log list price only. The quantity of gas added was estimated in the tables below the logs using the average price of gas at that time.

The bias ply tires were kept at 32 PSI. Bias ply snow tires were left on the car until June 20, 1985 (104,817 miles) when a high speed run in summer heat blew out a rear snow tire. Summer tires were mounted and kept on the car for the remainder of the logs.

74-fury-gas-log-pg-24

The leadfoot owner drove the OOCC Fury 11,245 miles from 101,426 miles to 112,610 miles. A ten month 6,186 mile gap of undocumented driving in the middle of the records leaves 4,998 miles documented. The OOCC Fury used 529.1 gallons to cover 4,998 miles which is 9.4 MPG overall. Very fast driving lowered mileage despite careful warm-ups and absence of city stop and go driving or use as a tow vehicle.

74-fury-gas-log-pg-26

The entire range of logs covers 65,290 miles to 112,610 miles. The 47,320 miles is missing logs in two sections that total 9,233 miles, leaving 38,087 miles documented. Removing the 14.2 gallon first entry equals 3,342.8 gallons. The second set of high speed logs absorb into the average which remains at the same 11.3 MPG Overall Average established by the first owner.

Odometer Gallons  Fill?    MPG (uncorrected) 
65,290        14.2      X  
65,301         0.0       X  
65,564        22.3      X  
65,739        11.2      X  
65,816         0.0      X  
65,847        11.4      X  
65,856         9.7      Full  
66,081        11.2     X  
66,147        16.9     Full   10.3 MPG 
66,253        17.5     Full    6.0 MPG 
66,458        13.2     Full   15.5 MPG 
66,716        16.9     X  
66,807        20.1     Full    9.4 MPG
66,941         9.9      X  
67,042        11.3     X  
67,163        11.1     X  
67,281        10.1     X  
67,412        13.5     X  
67,559        15.0     Full   10.6 MPG  
67,639         0.0      X  
67,658        10.7     X  
67,867        21.5     Full   9.5 MPG 
68,075        10.7     X  
68,225        10.5     X  
68,353        15.0     Full   13.4 MPG 
68,547        19.3     Full   10.0 MPG
68,768        19.3     Full   11.4 MPG 
68,883         6.6      Full   17.4 MPG * This higher MPG figure reflects highway cruising.  
69,033        12.0      X  
69,292        21.4      X  
69,---            9.0      Full   N.A.MPG
69,646        18.0     Full   12.6 MPG
69,936        20.6     Full   14.0 MPG
70,158        16.1     X  
70,335         9.8      X  
70,---           3.7      X  
70,490        10.2     X  
70,574        20.5     X  
70,847       11.5      X  
***MISSING ENTRIES***    
75,082         9.3   
75,277         6.5   
75,347        17.6   
75,574         9.2   
75,635         9.2   
75,687        13.9   
75,750         9.2   
75,818        17.6   
76,036        18.5   
76,242        16.7   
76,316         9.5   
76,500        16.5   
76,580        15.6   
76,672         7.8   
76,874        17.3   
76,958        12.8   
77,183        17.2   
77,268        12.5   
77,495        16.3   
77,742        20.1   
77,945        17.9     Full   N.A. MPG 
78,056         5.3   
78,144         9.6   
78,366        12.5   
78,455        16.7   
78,570        16.7   
78,815        16.7   
78,826          8.3     Full   10.2 MPG 
79,079        16.2   
79,213         7.7   
79,286        16.1   
79,376        15.5   
79,494        10.0   
79,707        12.4   
79,921         7.3   
80,045         3.2   
80,085         8.9   
80,---            8.9   
80,181        11.4   
80,446        14.0   
80,636        13.5   
80,925        19.8   
81,109        18.1   
81,219         8.9   
81,516        22.1   
81,694        13.0   
81,927        15.8   
82,101        10.9   
82,309         8.7   
82,448        10.6   
82,653        14.9   
82,821         6.4   
82,885        19.0   
82,978         9.5     Full   12.0 MPG
83,189        13.8    Full   15.9 MPG
83,449        14.6   
83,576        14.6   
83,777        14.5   
83,801         9.5   
83,879         7.9   
84,094        14.6   
84,139         8.4   
84,383       17.8   
84,621         3.6   
84,635       14.6   
84,775       22.7   
85,076       13.9   
85,161       22.0   
85,437       21.4   
85,494         9.2   
85,703         7.4   
85,947         7.1   
85,974       15.9   
86,---          14.3   
86,145       10.0   
86,275       14.3   
86,351       14.3   
86,468       14.3   
86,584       13.4   
86,614       13.4   
86,864       11.9   
86,954       11.3     Full   10.5 MPG 
87,047         7.4   
87,256         9.0   
87,301       11.4   
87,470       13.5   
87,582       13.3   
87,624         6.1   
87,775         7.1   
87,930       20.9   
88,180       15.8   
88,432       20.0   
88,704         6.2   
88,770         6.2   
88,810       20.8    Full   11.7 MPG
89,075       12.4   
89,151       11.7   
89,236       12.4   
89,369       11.5    Full   11.6 MPG 
89,581       18.7   
89,829         5.9   
89,839         9.3   
90,070         6.2   
90,116         5.8   
90,161       18.7   
90,417       17.6   
90,679       18.6   
90,810         7.1   
90,988       20.0     Full   12.6 MPG
91,179       13.3     Full   14.3 MPG 
91,416         5.6   
91,526         4.3   
91,577       21.0     Full   12.8 MPG
91,654         8.6     Full    8.9 MPG
91,886       23.2     Full   10.0 MPG 
92,268         5.4   
92,308       19.1     Full   17.2 MPG 
92,507         6.9   
92,507         8.8   
92,579         6.3   
82,---            9.8   Full   N.A. MPG
92,802       14.3   
93,053       17.6   
93,320         8.0   
93,---          13.7   Full   N.A. MPG
93,499       11.5   
93,543         8.6   
93,600       11.5   
93,635       12.6    Full   10.2 MPG 
93,894       14.3   
93,918       10.9   
94,132         8.4   
94,227       12.0   
94,353       11.8   
94,409       12.6   
94,482       12.7   
94,630       13.0   
94,697         7.9   
94,847       17.7   
94,981       11.1   
95,099       11.0   
95,117         7.9   
95,146         9.8    Full    9.3 MPG
95,278         6.5   
95,373       14.6    Full   10.7 MPG 
95,545       11.2   
95,591       11.4   
95,703       15.2     Full    8.7 MPG
95,921         7.5   
95,979         7.4   
96,047         8.6   
96,082       13.3   
96,110         5.9   
96,400       11.4   
96,495         2.8   
96,516         8.5   
96,554       11.4   
96,682       11.8   
96,828       14.7   
96,930       12.6   
97,102       11.3   
97,209         5.6   
97,285       11.0   
97,424       11.0   
97,570       21.0   
97,834       19.9   
98,132       21.0   
98,380         2.7   
98,413       22.3   
98,653       11.1   
98,---           5.0   
98,860       20.3   
99,121       11.2   
99,223         6.2   
99,321       23.9   
99,625       24.4   
99,889         2.8   
99,918         6.3   
100,000       2.9   
100,032       5.8   
100,080       6.6   
100,149       6.1   
100,202       3.2   
100,228     22.7   
100,436       5.8   
100,592       7.3   
100,667       6.2   
100,714       6.2   
100,788       7.3   
100,869     18.6   
101,071       9.0   
101,186     10.0   
101,336       1.2   
101,426       6.5   
101,449       2.5   
101,467     11.0   
101,515     13.7   
101,588     10.5   
101,661       4.5   
101,741       6.0   
101,777       6.0   
101,852       6.1   
101,915       9.0   
101,954       5.0   
102,048       5.5   
102,106       3.8   
102,147       6.0   
102,188       8.2   
102,210       6.6    Full   11.1 MPG
102,289       8.2    Full    9.6 MPG 
102,430       8.2   
102,516       3.9   
102,564       2.8   
102,600       3.4   
102,649       3.7   
102,679       6.4   
102,732       2.7   
102,743       4.5   
102,819       7.6   
***MISSING ENTRIES***    
109,005       2.7   
109,010       2.7   
109,031       1.8   
109,074       7.0   
109,114       8.1   
109,184       2.7   
109,210       5.4   
109,262       4.0   
109,290       2.7   
109,314       4.3   
109,356       2.7   
109,384       4.3   
109,415       9.7   
109,470       2.1   
109,521       5.9   
109,564       3.7   
109,601       3.2   
109,624       5.4   
109,655       2.7   
109,699       5.4   
109,737       5.4   
109,793       5.4   
109,858       6.4   
109,941       3.7   
109,965     13.5   
110,099       2.7   
110,134     11.8   
110,241     13.5   
110,378       2.1   
110,388       8.6   
110,937       5.9   
110,560     10.8   
110,677       1.4   
110,689       4.8   
110,765       6.4   
110,865       5.4   
110,895       2.1   
110,904       5.4   
110,961       8.1   
111,027       2.7   
111,054       4.8   
111,090       8.1    Empty  
111,171       3.2   
111,214       8.6    Empty  (E to E= appx 10.5 MPG)
111,295     10.8   
111,398       3.7   
111,447       5.9   
111,490       4.8   
111,543     10.8   
111,670     10.8   
111,777       6.4   
111,835       3.2   
111,861       3.2   
111,893       1.6   
111,960       6.4   
111,992       5.4   
112,041       4.8   
112,101       2.7   
112,112       2.3   
112,125       5.4   
112,187       2.7   
112,215       5.4   
112,276       2.1   
112,281       6.8   
112,350       3.2   
112,389       2.7   
112,408       6.8   
112,476       7.5   
112,548       2.5   
112,610       1.6

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Last Updated ( Monday, 01 May 2017 09:55 )