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2008 Porsche Boxster

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2008 Boxster.

Body PASSENGER CARTransmission Automatic 5-spd

The 2008 Porsche Boxster is a passenger car equipped with an automatic 5‑speed transmission and EPA‑rated fuel economy of 19 city, 26 highway and 21 combined mpg. Its single recorded owner complaint, which falls under the engine and engine cooling category, marks the lowest complaint count of one across the full 1997‑2024 model history, far below the peak of 34 complaints recorded in 1998. The model year also carried no recalls, further highlighting its relative stability. Consequently, the 2008 Boxster stands out as one of the most reliable years in the Boxster lineup.

Model year2016 2015 2014 2013 2012 2011 2010 2009 2008

Quick specs

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

Lug nut torque96 ft-lbsOEM · verified

EPA fuel economy19/26/21 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 0PB115499A. 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.

OE service part numbers OEM · verified

Engine oil filter	0PB115499A alt 99610722560
Engine air filter	98711013301
Spark plug	99917022390
Battery	9A7915089G alt 9A7915105
Front wiper blades	99662890111
Serpentine belt	99610215168
Thermostat	99610612554 alt 99610632651
Cabin air filter	99757121902

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic 5-spd

Dimensions & weight NHTSA vPIC

Overall length	170.9 in
Overall width	70.9 in
Overall height	50.8 in
Wheelbase	94.9 in
Curb weight	2855 lb
Track (front / rear)	58.3 / 59.1 in
Weight distribution (front / rear)	46/54

Ratings & economy EPA / vPIC

EPA city / highway / combined	19 / 26 / 21 mpg
Drivetrain	Rear-Wheel Drive
Recommended fuel	Premium Gasoline

Performance & power Independent road tests

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

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

4.3–5.6 sec0–60 mph (tested)quickest 4.30 sec — 2011 Spyder Convertible

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
2007	S Convertible 3.4L F-6	4.90 sec	13.40 sec	295 hp	RWD
2007	Convertible 2.7L F-6	5.60 sec	14.10 sec	245 hp	RWD
2009	S Convertible 3.4L F-6	4.30 sec	12.90 sec	310 hp	RWD
2009	S Convertible 3.4L F-6	4.50 sec	13.00 sec	310 hp	RWD
2005	S Convertible 3.2L F-6	5.00 sec	13.40 sec	280 hp	RWD
2005	S convertible 3.2L F-6	5.00 sec	13.40 sec	280 hp	RWD
2005	S Convertible 3.2L F-6	5.10 sec	13.60 sec	280 hp	RWD
2005	S convertible 3.2L F-6	5.10 sec	13.70 sec	280 hp	RWD

Service quick specs OEM factory data

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

This engine 75W-90 · GL-5 in the differential. Torque lug nuts to 96 ft-lbs. The firing order is 1-5-3-6-2-4.

Lubricants & capacities

Automatic Transmission Fluid	ATF
Automatic Transmission Fluid Capacity	3.7
Differential Gear Oil	75W-90 · GL-5
Differential Gear Oil Capacity	1.7 Pints
Engine Coolant	FILLED WITH PORSCHE LIFTIME COOLANT
Manual Transmission Fluid	Porsche part number 00004330471
Manual Transmission Fluid Capacity	4.6
Manual Transmission Fluid	Porsche part number 00004330471

Engine torques

Intake Manifold to Engine Bolts	9.5 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	17.0 ft-lbs
Intake Manifold to Engine Bolts	9.4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	17.0 ft-lbs

Chassis torques

Lug Nuts	96 ft-lbs
Front Wheel Hub	Install a new nut and torque to 340.0 ft-lbs
Rear Wheel Hub	Install a new nut and torque to 340.0 ft-lbs

Ignition

Cylinder Firing Order	1-6-2-4-3-5
Cylinder Firing Order	1-5-3-6-2-4

Brakes

Minimum Pad Thickness	Front: 0.079; Rear: 0.079 in
Minimum Shoe Thickness	0.079 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.

Every 10,000 mi	Engine Oil Filter (replace)
At 12,000 mi	Air Intake System (inspect) · Battery (inspect electrolyte level) · Body Latches, Locks & Hinges (inspect) · Body Water Drains (inspect) · Brake System (inspect) · Cabin Air Filter (replace)
Every 12,000 mi	Engine Oil (drain & refill)
Every 36,000 mi	Air Intake System (inspect) · Battery (inspect electrolyte level) · Body Latches, Locks & Hinges (inspect) · Body Water Drains (inspect) · Brake System (inspect) · Cabin Air Filter (replace)
At 40,000 mi	Accessory Drive Belt (inspect)
Every 60,000 mi	Accessory Drive Belt (inspect) · Drive Belt (replace)
At 108,000 mi	Transmission Assembly (drain & refill) · Transmission Fluid & Filter (replace)

Reliability & federal safety record

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

In 2008 the Boxster logged only one complaint and no recalls, a sharp decline from the 19 complaints in 2005 and the 5 in 2006, and the lowest total complaints seen in the 2000‑2008 span. The recall count remained at zero from 2005 onward, with only a single recall in 2011, 2012, 2014, 2015, 2016, and 2017, indicating a relatively stable safety record for the model line. The trend of complaints and recalls shows a notable dip around 2008, following a peak in 2004 and 2005, and before a modest uptick in 2011‑2015. The only complaint area for the target year is Engine & Engine Cooling, but the data does not specify a root cause. With no crash or fire complaints recorded, the 2008 Boxster sits at the bottom of the complaint curve for its generation. Overall, 2008 represents a low‑incident year and a prudent choice for a used Boxster buyer.

Open recalls

NHTSA campaigns

339

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

0 involved a crash · 0 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’97 ’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05 ’06 ’07’08’09 ’10 ’11 ’12 ’13 ’14 ’15 ’16 ’17 ’24

Owner complaints filed with NHTSA, by component

All 1 complaints on record, top 1 components.

Engine & Engine Cooling1

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 339 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
40/26 4407	2026-06-30	Wheels	Wheel Bolt Replacement Requirement - Change from Wheel Bolts with Aluminum Washers to…
TSTR2636	2026-06-29	Unknown Or Other	Porsche Tester Software Update Information Software Version: 44.200.031
TSTR2635	2026-06-29	Unknown Or Other	Porsche Tester Software Update Information Software Version: 44.200.030
20/26	2026-06-25	Engine	Overview of Approved Porsche C20 Engine Oils (20/26)
19/26 1701	2026-06-25	Engine	Overview of Approved Porsche C30 Engine Oils (19/26)

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 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.

Engine oil filter 0PB115499A Engine air filter 98711013301 Spark plug 99917022390 Battery 9A7915089G

Reference guides

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

Vehicle recalls & TSBs OBD-II trouble codes Maintenance schedules Fluid capacities & specs

Frequently asked

Does the 2008 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 Boxster get?

EPA figures are 19 city / 26 highway / 21 combined mpg.