COMPARISON · THE SHOWDOWN
OPEN LABOR PROJECT
VEHICLE A
Buick
GS
401ci V8
RWD · manual · gas
VS
VEHICLE B
1973–1975
Buick
GS
5.7L V8
RWD · gas

Real labor data. Real maintenance costs. Real recall counts. No subscription, no paywall — free for every wrench-turner.

01

Specifications

Year
1966
1973–1975
Engine
401ci V8
5.7L V8
Drivetrain
RWD
RWD
Transmission
manual
Fuel
gas
gas
04

Cost of Ownership

5-Year Maintenance
$17,026
0.28 $/mi
★ WINNER
5-Year Maintenance
$7,897
0.13 $/mi
🏆
ADVANTAGEBuick GSSaves you $9,129 over 5 years (54% less in routine maintenance labor)

Routine maintenance only. Cost = labor hours × $150/hr × estimated 5-yr frequency. Parts cost not included.

05

Maintenance Breakdown

Hours per common service. Lower is faster (and cheaper) at the shop.

Nailhead 401 Bottom End Wear - Main and Rod Bearings
hrs$3,900 / 5yr
hrs
Piston Ring Blowby and Cylinder Glazing
hrs$2,925 / 5yr
hrs
Oil & filter change
0.3 hrs$1,020 / 5yr
0.5 hrs$1,380 / 5yr
ST-300/ST-400 Transmission Overheating and Failure
hrs$1,950 / 5yr
hrs
Tire rotation
0.5 hrs$600 / 5yr
0.5 hrs$600 / 5yr
Rear brake pads
1.5 hrs$590 / 5yr
1.4 hrs$560 / 5yr
Front brake pads
1.2 hrs$520 / 5yr
1.4 hrs$580 / 5yr
Differential fluid
1.2 hrs$440 / 5yr
1.2 hrs$440 / 5yr
Head Gasket Failure Both Sides
hrs$805 / 5yr
hrs
Brake fluid flush
0.8 hrs$270 / 5yr
1.0 hrs$330 / 5yr
Wiper blades
0.2 hrs$240 / 5yr
0.3 hrs$300 / 5yr
12V battery
0.3 hrs$245 / 5yr
0.5 hrs$275 / 5yr
Intake manifold gasket
5.5 hrs$275 / 5yr
3.6 hrs$189 / 5yr
Spark plugs
1.0 hrs$230 / 5yr
1.0 hrs$230 / 5yr
Fuel filter
0.5 hrs$210 / 5yr
0.6 hrs$240 / 5yr
Coolant flush
1.2 hrs$230 / 5yr
1.0 hrs$200 / 5yr
Water pump
3.5 hrs$226 / 5yr
3.0 hrs$200 / 5yr
Oil pan gasket
4.2 hrs$170 / 5yr
4.2 hrs$170 / 5yr
Fuel System Varnish and Filter Clogging
hrs$315 / 5yr
hrs
Valve cover gasket
2.5 hrs$174 / 5yr
1.8 hrs$132 / 5yr
Engine air filter
0.2 hrs$120 / 5yr
0.4 hrs$180 / 5yr
Transmission Mount and Crossmember Deterioration
hrs$293 / 5yr
hrs
Serpentine belt
0.7 hrs$140 / 5yr
0.7 hrs$140 / 5yr
Alternator
1.2 hrs$120 / 5yr
1.8 hrs$143 / 5yr
Cabin air filter
hrs
0.4 hrs$255 / 5yr
Power steering flush
0.6 hrs$110 / 5yr
0.6 hrs$110 / 5yr
Oxygen sensor
hrs
1.8 hrs$195 / 5yr
Starter motor
1.2 hrs$76 / 5yr
1.8 hrs$94 / 5yr
PCV valve
0.3 hrs$65 / 5yr
0.5 hrs$95 / 5yr
Thermostat
1.0 hrs$67 / 5yr
1.0 hrs$67 / 5yr
Ignition coil
hrs
1.0 hrs$92 / 5yr
06

Active Recalls

Open NHTSA Recalls
0
CLEAR
Open NHTSA Recalls
0
CLEAR

✓ Both vehicles are completely clear of open safety recalls.

07

Fluid Capacities

Buick GS
brake1.00 qt · FMVSS 116 DOT 3
coolant18.00 qt · Ethylene glycol 50/50
engine_oil5.00 qt · API MS
power_steering2.50 qt · Type A Suffix A ATF
rear_diff4.00 qt · API GL-5
transmission_manual3.50 qt · API GL-4
washer2.00 qt · Windshield washer fluid
Buick GS
brake1.00 qt · FMVSS 116 DOT 3
coolant17.00 qt · GM 1899-M or equivalent
engine_oil5.00 qt · API SF
power_steering2.00 qt · GM Part No. 1050017 or equivalent
rear_diff4.00 qt · API GL-5
transmission_auto11.00 qt · GM Type A Suffix A
transmission_manual3.50 qt · GM Type A Suffix A
washer2.50 qt · Windshield washer fluid
08

The Verdict

🏆
THE WINNER
1973–1975 Buick GS
5.7L V8
  • Buick GS is cheaper to maintain (saves ~$9,129 over 5 years)

Based on objective maintenance and recall data. Driving feel, looks, brand loyalty, and ownership experience are separate (and very valid) considerations.

Open the full dashboard for either truck

Labor times, torque specs, fluid capacities, DTC codes, repair procedures, recalls, common platform problems.