FordF-350 Super Duty2018Overview/ford/f-350-super-duty/2018/base/

2018 Ford F-350 Super Duty

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 F-350 Super Duty.

Body TRUCKTransmission Manual 6-spd

The 2018 Ford F‑350 Super Duty is a heavy‑duty truck built on Ford’s dedicated Super Duty platform and equipped with a six‑speed manual transmission that underscores its work‑oriented intent, while its EPA ratings of 14 mpg city, 21 mpg highway and 16 mpg combined reflect the fuel demands of its large‑capacity chassis. Although the model does not list a specific engine in the source data, its drivetrain configuration and robust construction are designed to handle demanding towing and payload tasks. In terms of reliability, the year recorded 194 owner‑reported complaints, with steering and suspension issues emerging as the most frequent problem area, and it was subject to two recalls, placing the 2018 iteration in a middle tier of the Super Duty’s overall durability record—adequate for research but warranting attention to those particular components.

Model year20262025202420232021202020192018

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacityNSOEM · verified
Engine oil typeNSOEM · verified
Lug nut torque165 ft-lbsOEM · verified
EPA fuel economy14/21/16 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 65 · 650 CCA battery. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 65 · 650 CCAOEM · verified
Tire sizeLT245/75Rx17EOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionManual 6-spd

Dimensions & weight NHTSA vPIC

Overall length263.8 in
Overall width79.9 in
Overall height78 in
Wheelbase176 in
Curb weight6517 lb
Track (front / rear)68.5 / 67.3 in

Ratings & economy EPA / vPIC

EPA city / highway / combined14 / 21 / 16 mpg
DrivetrainRear-Wheel Drive
Recommended fuelPremium Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the F-350 Super Duty of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

6.8–7.6 sec0–60 mph (tested)quickest 6.80 sec — 2020 Limited 6.7L Crew Cab DRW (8'2.1" Bed)
YearTrim / engine0–60¼ mileHPDrivetrain
2017Platinum 6.7L Crew Cab (6.8 ft. Bed) 6.7L Turbo Diesel V87.20 sec15.60 sec440 hp4x4
2017Lariat 6.7L Crew Cab DRW (8.2 ft. Bed) 6.7L Turbo Diesel V87.60 sec15.80 sec440 hp4x4
2020Limited 6.7L Crew Cab DRW (8'2.1" Bed) 6.7L Turbo Diesel V86.80 sec15.20 sec475 hp4x4
2020King Ranch Tremor Crew Cab (6'9.9" Bed) 7.3L V87.30 sec15.60 sec430 hp4x4
2020Platinum Tremor Crew Cab (6'9.9" Bed) 7.3L V87.50 sec15.70 sec430 hp4x4

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds NS of NS engine oil. Torque lug nuts to 165 ft-lbs. The firing order is 1-5-4-8-6-3-7-2. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Crankshaft Position (CKP) Sensor Bolt(s)7.5 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Oxygen (O2S) Sensor Bolt(s)35.0 ft-lbs
Knock Sense (KS) Bolt(s)14.75 ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)20.0 ft-lbs
Nitrogen Oxide (NOX) Sensor Bolt(s)35.0 ft-lbs

Chassis torques

Lug Nuts165 ft-lbs
Lug Nuts165 ft-lbs

Ignition

Cylinder Firing Order1-5-4-8-6-3-7-2
Spark Plug ManufacturerMotorcraft
Spark Plug Gap.042-.046 in
Spark Plug Torque18 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.68 lbs
Oil GroupPAG
Oil Type46
RefrigerantR134a
Refrigerant Capacity1.68 lbs.
Oil GroupPAG
Oil Type46

Service checks

Fuel Pump Pressure Minimum51.0 psi
Fuel Pump Pressure Maximum62.0 psi
Key ON Engine OFF (KOEO)51.0-62.0
RPM51.0-62.0 rpm

Brakes

Brake Caliper Bolt to Carrier Torque55
Brake Caliper Carrier to Hub Bolt TorqueReplace Bolts. 203 ft-lbs
Brake Caliper Bolt to Carrier Torque55
Brake Caliper Carrier to Hub Bolt TorqueReplace Bolts: 203
Vented Rotor Minimum Thickness for Replacement1.433
Maximum Rotor Runout.002
Vented Rotor Minimum Thickness for Replacement1.433
Maximum Rotor Runout.002

Multi-step torque procedures OEM · verified

Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
16.6 ft. lbs., Step 2: 906.6 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 3 stages
115.0 ft. lbs.15 ft. lbs
228.0 ft. lbs.28 ft. lbs
3150.0
Connecting Rod (Large End) Bearings — tightening sequence 2 stages
133.0 ft. lbs.33 ft. lbs
290.0
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1129.0 ft. lbs., Step 2: 90129 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
122.0 ft. lbs., Step 2: 9022 ft. lbs
Cylinder Head — tightening sequence 7 stages

Prep The cylinder head bolts are torque-to-yield and must not be reused. New cylinder head bolts must be installed.

118.0 ft. lbs.18 ft. lbs
255.0 ft. lbs.55 ft. lbs
3Loosen 180 degrees180 degrees
418.0 ft. lbs.18 ft. lbs
526.0 ft. lbs.26 ft. lbs
690 degrees90 degrees
790 degrees90 degrees
Cylinder Head — tightening sequence 7 stages

Prep Bolts 1-18: Step 1: 14.7 ft. lbs.

236 ft. lbs.36 ft. lbs
336 ft. lbs.36 ft. lbs
436 ft. lbs.36 ft. lbs
5Turn 90 degrees90 degrees
6Turn 90 degrees90 degrees
7Turn 90 degrees90 degrees
822
Engine Flywheel Bolts — tightening sequence 6 stages
1Bolts 1-415 ft. lbs
2Bolts 1-426 ft. lbs
3Bolts 1-460 degrees
4Bolts 5-815 ft. lbs
5Bolts 5-826 ft. lbs
660.0
Engine Flywheel Bolts — tightening sequence 2 stages
144.0 inch lbs.44 in
274.0
Intake Manifold to Engine Bolts — tightening sequence 4 stages
1Bolts 1-127.4 ft. lbs
2Bolts 1-1245 degrees
3Bolts 13-167.4 ft. lbs
4Turn additional 90
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 2 stages

Prep Install New Studs: 18 ft. lbs.

1New Nuts18 ft. lbs
224
Intake Manifold to Engine Bolts — tightening sequence 1 stages

Prep Upper: Step 1: 7.4 ft. lbs.

2Tighten bolts 98 degrees. Lower: 1898 degrees
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 3 stages

Prep Install New Manifold Studs: 9.6 ft. lbs.

114.7 ft.lbs.14.7 ft.lbs
222 ft. lbs.22 ft. lbs
322
Main Bearings — tightening sequence 3 stages

Prep Outer bolts

123.0 ft. lbs.23 ft. lbs
237.0 ft. lbs.37 ft. lbs
390.0 degrees; Inner bolts90 degrees
126.0 ft. lbs.26 ft. lbs
248.0 ft. lbs.48 ft. lbs
390.0 degrees; Side bolts90 degrees
115.0 ft. lbs.15 ft. lbs
226.0 ft. lbs.26 ft. lbs
360.0
Main Bearings — tightening sequence 6 stages
1Bolts 1-2015 ft. lbs
2Bolts 1-1059 ft. lbs
3Bolts 11-20118 ft. lbs
4Bolts 1-2090 degrees
5Bolts 21-3030 ft. lbs
690.0
Oil Pan to Block Bolts — tightening sequence 1 stages
19.0 ft. lbs., Step 2: 409 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 97,500 mi; coolant every 45,000 mi. The big-interval services (every 45,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 10,000 miAir Filter Restriction Gauge (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Rotor (inspect) · Drive Axle Assembly (inspect) · Engine Coolant System (inspect fluid level)
Every 15,000 miAccessory Drive Belt (inspect) · Brake Drum Assembly (inspect) · Brake Line (inspect) · Brake Rotor (inspect) · Cabin Air Filter (replace) · Drive Axle Assembly (inspect)
Every 30,000 miEngine Air Filter Element (replace) · Fuel Filter (replace)
Every 45,000 miEngine Coolant System (drain, flush & refill)
Every 60,000 miWheel Bearing (repack)
Every 97,500 miSpark Plugs (replace)
Every 100,000 miEngine Breather Filter (replace)
At 105,000 miAccessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

Owner complaints about the 2018 Ford F-350 Super Duty lead in one area — the steering,suspension, 43 of 194 reports (22%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 1 of the reports describe a crash and 4 a fire — a small share of the total, but worth weighing against the steering,suspension pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

2
Open recalls
NHTSA campaigns
7
Service bulletins
Manufacturer communications
3
ODI investigations
Office of Defects Investigation
194
Owner complaints
1 involved a crash · 4 a fire

Owner complaints filed with NHTSA, by component

All 194 complaints on record, top 8 components.

Steering,Suspension43
Steering34
Structure17
Suspension14
Steering,Suspension,Wheels10
Unknown Or Other8
Back Over Prevention8
Wheels8

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 7 bulletins on record with NHTSA.

BulletinDateComponentSummary
24L052025-09-24Unknown Or OtherCertain 2011-2022 Model Year Super Duty Vehicles Equipped with 6.7L Engine - Emission…
SAN-Vol1 I12023-06-08EquipmentThe Service Awareness Newsletter is an informal communication that contains information…
20N042020-04-30SteeringIn some of the affected vehicles, customers may experience sustained steering wheel…
TSB 18-22782018-09-14EngineSome 2017-2018 F-Super Duty vehicles equipped with a 6.7L engine may exhibit a concern…
SSM 471002018-02-21EquipmentSome 2016-2018 Ford and Lincoln Vehicle equipped with SYNC 3 and connected to an iPhone…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific F-350 Super Duty. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2018 F-350 Super Duty take?

NS of NS, per the factory manual.

Does the 2018 F-350 Super Duty have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the F-350 Super Duty get?

EPA figures are 14 city / 21 highway / 16 combined mpg.