BuickRegal TourX2019Overview/buick/regal-tourx/2019/base/

2019 Buick Regal TourX

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2019 Regal TourX.

Body PASSENGER CARTransmission Automatic (S8)

The 2019 Buick Regal TourX is a passenger wagon built on GM's Epsilon II platform, equipped with a 5.0-quart engine oil capacity using 5W-30 viscosity, paired with an 8-speed automatic (S8) transmission and achieving EPA fuel economy ratings of 21 mpg city, 29 mpg highway, and 24 mpg combined; in terms of reliability, this model year recorded 18 owner complaints with the powertrain being the primary concern area, alongside three recalls, and while it represents the highest complaint count across the 2018-2020 model span, the 2020 model year saw a significant drop to just 3 complaints, suggesting that issues were largely addressed in subsequent production.

Model year20202019

Quick specs

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

Engine oil capacity5.0 qtOEM · verified
Engine oil type5W-30OEM · verified
Lug nut torque110 ft-lbsOEM · verified
EPA fuel economy21/29/24 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 94R · 720 CCA battery, OE oil filter 25206377. 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 94R · 720 CCAOEM · verified
Tire sizeP225/55R17 95HOEM · verified
Wheel / rim7.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter25206377
Engine air filter23430313
Spark plug12681659
Battery88864542
Front wiper blades13471437 alt 39208143
Serpentine belt12664598
Thermostat12630780 alt 25201447
Cabin air filter13356914

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S8)

Dimensions & weight NHTSA vPIC

Overall length192.9 in
Overall width73.2 in
Overall height57.5 in
Wheelbase111.4 in
Curb weight4096 lb
Track (front / rear)63 / 63 in
Weight distribution (front / rear)58/42

Ratings & economy EPA / vPIC

EPA city / highway / combined21 / 29 / 24 mpg
DrivetrainAll-Wheel Drive
Passenger volume99 cu ft
Cargo volume19 cu ft
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

This engine holds 5.0 qt of 5W-30 engine oil, Synthetic · 75W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 110 ft-lbs. The firing order is 1-2-3-4-5-6. 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.

Lubricants & capacities

Automatic Transmission FluidUse GM Part number 192560039
Automatic Transmission Fluid Capacity7.5
Automatic Transmission FluidDEXRON(R)-VI GM P/N 89020661
Automatic Transmission Fluid Capacity5.3-6.3
Brake FluidDOT 3
Differential Gear OilSynthetic · 75W-90 · GL-5
Differential Gear Oil Capacity1.4 qt
Engine Coolant Capacity5.3

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs89 inch lbs. ft-lbs
Camshaft Bearing/Carrier Cap Bolts or Studs89 inch lbs. ft-lbs
Camshaft Bearing/Carrier Cap Bolts or Studs89 inch lbs. ft-lbs
Cylinder Head InstructionsUse New Cylinder Head Bolts.
Engine Flywheel Bolts49 ft-lbs
Intake Manifold to Engine Bolts18 ft-lbs
Exhaust Manifold to Cylinder Head Bolts34 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs18 ft-lbs

Chassis torques

Lug Nuts110 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Cylinder Firing Order1-2-3-4-5-6
Spark Plug ManufacturerAC Delco
Spark Plug Gap.037-.043 in
Spark Plug Torque15 ft-lbs
Spark Plug ManufacturerAC Delco
Spark Plug Gap.035 in
Spark Plug Torque13 ft-lbs

Battery & A/C

RefrigerantR1234yf
Refrigerant Capacity1.21 lbs
Oil GroupPAG
Oil Type46
Oil Capacity2.03 oz
RefrigerantR1234yf
Refrigerant Capacity1.21 lbs
Oil Capacity2.04 oz

Service checks

Key ON Engine OFF (KOEO)50.0-94.0
RPM43.0-58.0 @ Idle rpm
Key ON Engine OFF (KOEO)50.0-94.0
RPM43.0-58.0 @ Idle rpm
Engine CompressionCranking Speed
Engine CompressionCranking Speed

Brakes

Brake Caliper Bolt to Carrier TorqueFront: 35.0 ft-lbs; Rear: 26.0 ft-lbs
ABS Sensor TorqueFront: 6.0; Rear: 6.0
Minimum Pad ThicknessFront: 0.078 in; Rear: 0.078 in
Vented Rotor Minimum Thickness for ReplacementFront: 16; Rear: 16
Vented Rotor Minimum Thickness after RefinishFront: 16
Variation from Parallelism Thickness Variation.001
Maximum Rotor Runout.002

Multi-step torque procedures OEM · verified

Brake Caliper Carrier to Hub Bolt Torque — tightening sequence 1 stages

Prep Front: Step 1: 111.0 ft. lbs.

2Turn 15-30°74 ft. lbs
2Turn 15-30°.
Front Wheel Hub — tightening sequence 1 stages
1111.0 ft. lbs., Step 2: Back off 45.0°, Step 3: 185.0111 ft. lbs
Rear Wheel Hub — tightening sequence 1 stages
1111.0 ft. lbs., Step 2: Back off 45.0°, Step 3: 199.0111 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
118 ft. lbs., Step 2: 110°.18 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
122 ft. lbs., Step 2: 0 ft. lbs., Step 3: 18 ft. lbs., Step 4: 110°.22 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1111.0 ft. lbs., Step 2: 140 degrees.111 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
174.0 ft. lbs., Step 2: 150 degrees. Use new bolt.74 ft. lbs
Cylinder Head — tightening sequence 2 stages

Prep Do not re-use old bolts

122.0 ft. lbs.22 ft. lbs
2190 degrees190 degrees
Cylinder Head — tightening sequence 4 stages

Prep Do not re-use old bolts

1M11 bolts44 ft. lbs
2M11 bolts185 degrees
3M8 bolts11 ft. lbs
4M8 bolts75 degrees
Cylinder Head — tightening sequence 1 stages
122 ft. lbs., Step 2: Turn 190°.22 ft. lbs
Cylinder Head — tightening sequence 1 stages
1M11 Bolts44 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
115 ft. lbs., Step 2: 22 ft. lbs., Step 3: 40°.15 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
122 ft. lbs., Step 2: 80°.22 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
122 ft. lbs., Step 2: 45°.22 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 2 stages
18.8 ft. lbs.8.8 ft. lbs
28.8
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 2 stages

Prep Tighten evenly and use new fasteners. Step 1: 15 ft. lbs.

215 ft. lbs.15 ft. lbs
315

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 60,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 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 miAccelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Oil (inspect fluid level)
Every 15,000 miWindshield Wiper Blade (replace)
Every 22,500 miCabin Air Filter (replace)
Every 45,000 miEngine Air Filter Element (replace) · Fuel Evaporative Emission Control System (inspect)
Every 60,000 miSpark Plug Wires (inspect) · Spark Plugs (replace)
Every 75,000 miHood Hinge (inspect)
At 150,000 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.

Within this three-year federal record, 2019 sits at the top of the arc: complaints rose to 18 from 14 in 2018 and fell to just 3 in 2020, while recalls appeared only in 2019 with three campaigns and TSBs peaked at 431 before dropping to 236 the following year. That pattern suggests the 2019 model year generated the most owner-reported issues and factory service attention in this generation, even though absolute complaint volume remains modest and there were zero crash or fire complaints. The leading 2019 complaint categories are powertrain (3), a combined suspension/powertrain/electrical category (2), powertrain/engine (1), and tires (1); the data does not specify root causes. Because the 2020 model shows markedly lower complaints, recalls, and TSBs, a 2019 TourX is the riskiest year of this trio on paper, yet it remains a viable buy if all three recalls have been completed and the price reflects the higher reported activity.

3
Open recalls
NHTSA campaigns
431
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
18
Owner complaints
0 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★★
Side★★★★★
Rollover★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 18 complaints on record, top 8 components.

Power Train3
Suspension,Power Train,Electrical System2
Power Train,Engine1
Tires1
Seats1
Electrical System,Fuel/Propulsion System1
Electrical System,Engine1
Service Brakes, Hydraulic1

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 431 bulletins on record with NHTSA.

BulletinDateComponentSummary
N252494770-012025-06-20Unknown Or OtherAmendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners…
N2524947702025-06-17Unknown Or OtherAmendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners…
PIT6180A2025-06-10Unknown Or OtherThis Preliminary information communicates assistance in locating the Rear seat belt…
PIP4902S2025-06-09Unknown Or OtherThis preliminary information advises a dealer on how to email GDS2 session logs into…
15-NA-0102025-05-07EngineThis service bulletin provides information to dealership personnel for new vehicles with…

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 Regal TourX. 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 2019 Regal TourX take?

5.0 qt of 5W-30 Use GM Dexos 1 Oil or equivalent, per the factory manual.

Does the 2019 Regal TourX have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Regal TourX get?

EPA figures are 21 city / 29 highway / 24 combined mpg.