Porsche718 Boxster2020Overview/porsche/718-boxster/2020/base/

2020 Porsche 718 Boxster

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2020 718 Boxster.

Transmission Manual 6-spd

The 2020 Porsche 718 Boxster comes with a six‑speed manual transmission and carries an EPA fuel‑efficiency rating of 16 mpg city, 23 mpg highway and 19 mpg combined. Over the 20172023 model years, complaint numbers were highest in 2017 with three reports and lowest in 2023 with just one, showing a clear downward trend. Consequently, the 2020 model sits within a period of improving reliability for the 718 Boxster lineup.

Model year202520242023202220212020201920182017

Quick specs

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

Lug nut torque118 ft-lbsOEM · verified
EPA fuel economy16/23/19 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 48 The manufacturer used many types of batteries during production. Battery must be sized to fit. AGM VRLA battery is required. Battery is vented to the outside of the vehicle. PR Codes are from the factory and refer to installed options. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. · 70 O.E. AmpHrs CCA battery, OE oil filter 99970768540. 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 48 The manufacturer used many types of batteries during production. Battery must be sized to fit. AGM VRLA battery is required. Battery is vented to the outside of the vehicle. PR Codes are from the factory and refer to installed options. Battery must be registered after installation with a proper scan tool. The vehicles computer needs to be reset after installation. · 70 O.E. AmpHrs CCAOEM · verified
Tire size235/45ZR18 94Y, Rear: 265/45ZR18 101YOEM · verified
Wheel / rimFront: 8, Rear: 9.5; Options 1, 2 & 4: Front: 8, Rear: 10; Options 3 & 5: Front: 8.5, Rear: 10.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter99970768540 alt 9A210747500
Engine air filter982129620B
Spark plug0PB905612 alt 9A790560600
Battery99961109512 alt 992915105B
Front wiper blades99162890101
Serpentine belt9A210222400 alt 9A210222500
Thermostat0PB121110A alt 0PB121688
Cabin air filter9P1819631 alt 99157237100

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionManual 6-spd

Dimensions & weight NHTSA vPIC

Overall length172.4 in
Overall width70.9 in
Overall height50.4 in
Wheelbase97.6 in
Curb weight2943 lb
Track (front / rear)59.8 / 61.4 in
Weight distribution (front / rear)46/54

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 23 / 19 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 718 Boxster of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

3.8–4.8 sec0–60 mph (tested)quickest 3.80 sec — 2020 GTS 4.0 Convertible (EU Spec)
YearTrim / engine0–60¼ mileHPDrivetrain
2020GTS 4.0 Convertible (EU Spec) 4.0L F-63.80 sec12.00 sec394 hpRWD
2020Spyder Convertible 4.0L F-63.80 sec12.00 sec414 hpRWD
2020T Convertible 2.0L Turbo F-43.80 sec12.40 sec300 hpRWD
2020Spyder Convertible 4.0L F-64.00 sec12.30 sec414 hpRWD
2020T Convertible 2.0L Turbo F-44.80 sec13.10 sec300 hpRWD
2019S Convertible 2.5L Turbo F-43.70 sec12.00 sec350 hpRWD
2019Convertible 2.0L Turbo F-44.60 sec13.00 sec300 hpRWD
2021Spyder Convertible 4.0L F-63.40 sec11.80 sec414 hpRWD

Service quick specs OEM factory data

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

Torque lug nuts to 118 ft-lbs.

Engine torques

Oil Pump to Cylinder BLock Bolts/Studs114.0 inch lbs. ft-lbs

Chassis torques

Lug Nuts118 ft-lbs
Lug Nuts118 ft-lbs

Battery & A/C

RefrigerantR1234yf
Refrigerant Capacity1.84 lbs
Oil GroupPAG
Oil Type46YF
Oil Capacity4.39 oz
Standard BCI Group Number48
Standard BCI Cranking Performance70 O.E. AmpHrs cca

Brakes

ABS Sensor TorqueFront: 6.0; Rear: 6.0
Vented Rotor Minimum Thickness for ReplacementFront: 1.024; Rear: .709
Vented Rotor Minimum Thickness after RefinishFront: 1.047; Rear: .732
Variation from Parallelism Thickness Variation.0008
Maximum Rotor Runout.0012
Maximum Drum DiameterParking Brake: 7.126
Vented Rotor Minimum Thickness for ReplacementFront: 1.260; Rear: .709
Vented Rotor Minimum Thickness after RefinishFront: 1.284; Rear: .732

Multi-step torque procedures OEM · verified

Brake Caliper Carrier to Hub Bolt Torque — tightening sequence 1 stages
163.0
Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
1M6 x 38 Bolts42 in
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
142.0 inch lbs., Step 2: 12.0 ft. lbs., Step 3: 80°, Step 4: Loosen all bolts., Step 5: 42.0 inch lbs., Step 6: 12.0 ft. lbs., Step 7: 80°42 in
Engine Flywheel Bolts — tightening sequence 1 stages
119.0 ft. lbs., Step 2: 120°19 ft. lbs
Main Bearings — tightening sequence 1 stages
142.0 inch lbs., Step 2: 11.0 ft. lbs., Step 3: 37.0 ft. lbs., Step 4: Loosen all bolts., Step 5: 42.0 inch lbs., Step 6: 11.0 ft. lbs., Step 7: 75°, Step 8: 75°42 in

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 10,000 mi; spark plugs every 30,000 mi; coolant every 20,000 mi. The big-interval services (every 20,000 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 10,000 miBrake Line (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Headlamp (inspect alignment) · Tire & Wheel Assembly (inspect) · Underbody (inspect)
Every 20,000 miAir Intake Duct (inspect) · Body Water Drains (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Engine Coolant System (inspect fluid level)
Every 30,000 miSpark Plugs (replace)
Every 40,000 miAccessory Drive Belt (inspect) · Body Latches, Locks & Hinges (inspect) · Brake Linings (inspect) · Brake Rotor (inspect) · Engine Air Filter Element (replace) · Exhaust System (Complete) (inspect)
Every 60,000 miDrive Belt (replace)
Every 80,000 miEngine Mount (inspect)
At 120,000 miTransmission Assembly (drain & 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.

0
Open recalls
NHTSA campaigns
401
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
0
Owner complaints
0 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

No owner complaints on record with NHTSA for this vehicle.

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 401 bulletins on record with NHTSA.

BulletinDateComponentSummary
40/26 44072026-06-30WheelsWheel Bolt Replacement Requirement - Change from Wheel Bolts with Aluminum Washers to…
09/26 37302026-06-30Power TrainPermanent Fault Memory Entries “P1775”/“P071400”/“P184900” in Transmission Electronics…
TSTR26362026-06-29Unknown Or OtherPorsche Tester Software Update Information Software Version: 44.200.031
TSTR26352026-06-29Unknown Or OtherPorsche Tester Software Update Information Software Version: 44.200.030
20/262026-06-25EngineOverview of Approved Porsche C20 Engine Oils (20/26)

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 718 Boxster. 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

Does the 2020 718 Boxster have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 718 Boxster get?

EPA figures are 16 city / 23 highway / 19 combined mpg.