Porsche 928 S4 Technical Specifications

Dimensions

Type

Model Year

928 S4

87

928 S4 (Club Sport)

88

928 S4/928 GT

89

Wheelbase mm/in

2500/98.43

2500/98.43

2500.98.43

 

Track width, front mm/in

 

 

1551/61.06

 

1551/61.06

1561/61.46*

 

1551/61.06

1561/61.46**

 

Track width, rear mm/in

 

 

1546/60.90

 

1546/60.90

1565/61.61*

 

1546/60.90

1565/61.61**

 

Length mm/in

 

 

4520/177.95

(4523/178.07)

 

 

4520/177.95

(4523/178.07)

 

 

4520/177.95

(4523/178.07)

 

Width mm/in

 

 

1836/72.28

 

1836/72.28

 

1836/72.28

Height (acc.DIN curbweight) mm/in

 

 

 

1282/50.47

 

 

1282/50.47

 

 

1282/50.47

Ground clearance mm/in

 

 

120/4.72

 

120/4.72

 

120/4.72

 

Turning circle m/ft

 

 

app. 11.5/37.73

 

app. 11.5/37.73

 

app. 11.7/38.4

Overhang angle at permissible total weight

front

rear

 

 

 

 

15.2°

14.1°

 

 

 

14.0°

14.5°

 

 

 

14.0°

14.5°

 

(USA values in brackets)

 

** Club Sport

*** 928 GT

 

 

 

Weights

Type

Model Year

928 S4

87

928 S4/928 GT

88/89

 

USA

USA

Curbweight to DIN*

kg/lbs 1590/3505

kg/lbs 1590/3505

 

Perm. total weight

 

kg/lbs 1920/4233

Kg/lbs 1900/4189

Perm. axial load front**

 

kg/lbs 920/2028

kg/lbs 920/2028

Perm. axial load rear**

 

kg/lbs 1100/2425

kg/lbs 1100/2425

Perm. trailer load unbraked**

 

kg 750

kg 750

Perm. trailer load braked***

 

kg 1600

kg 1600

Perm. roof load**

with Porsche roof transport system from Mod. 82

 

kg/lbs 35/77

kg/lbs 75/165

kg/lbs 35/77

kg/lbs 75/165

Perm. drawbar

 

kg 75

kg 75

Perm. towing weight

 

kg 3520

kg 3520

 

* With extra equipment up to 1550 kg or 1560 for USA models (the vehicle capacity weight is reduced correspondingly).  From Model 87 up to 1600 kg or 1610 kg.

 

** The permissible total weight must not be exceeded.

 

*** Up to 16% incline

 

 

Filling Capacities

Engine oil specification

permissible:

API SE/SF with combination

API SE/CC – SE/CD – SF/CC – SF/CD

Multi-grade oil as approved by plant

Technical Information Engine Oils

 

Engine oil volume

Approx. 7.5 ltr., plus 0.5 ltr. when replacing filter (exact amount depending on marks on oil dipstick).

Amount of oil between “Min.” – und Max.” – marks on oil dipstick – approx. 1.5 l.

 

Cooling system incl. heater

Approx. 16 ltr. of coolant, plant filling with anti-freeze for temperatures to -30°C (-40°C for arctic countries).  Only use anti-freeze and corrosion inhibiting products, which are suitable for light alloy engines and radiators.

 

Power steering

Approx. 0.7 ltr. ATF (only Dexron II D)

 

Fuel tank

Approx. 86 ltr., 8 ltr. of which as reserve

 

Brake fluid reservoir

Approx. 0.2 ltr. brake fluid in accordance with SAE J 1703 or DOT 3

 

Windshield washer with headlamp washer system

Approx. 9.0 ltr. water, from model 86 approx. 7.5 ltr. water

 

Intensive cleaning system

Approx. 0.6 ltr. “Porsche Special Silicone Remover”

 

Manual transmission with differential

Multi-grade transmission oil SAE 75 W 90

API-classification GL 5 (or MIL-L 2105 B)

Filling capacity until model 85 approx. 3.8 l

(from model 86 approx. 4.5 l)

 

Automatic transmission with converter

Filling capacity approx 8.0 l (from model 87 approx. 9.3 l)

Oil change capacity with converter approx. 6.0 ltr.

(from model 87 approx. 7.3 ltr.) ATF-Dexron II D

 

Rear axle drive

Filling capacity ca. 2.7 l (from model 87 approx. 3.0 l)

API-classification GL 5 (MIL-L 2105 B) SAE 90