928 S V8-4957cc 5.0L (1985)
Wheels: Technical Service Bulletins
Tires/Wheel - Summer Tire and Wheel Rim Summary
Subject:
Summer Tire And Wheel Rim Summary
Model
928, 928S
Group
4
Part Identifier
N/A
Number
8507
April 26, 1985
Attention:
This bulletin supercedes Group 4, Number 8507 issued April 1, 1985. Tires tested for Porsche must fulfill a wide range of requirements.
For example:
^
service life
^
high speed strength
^
handling on wet and dry road surfaces
^
adaption to vehicle design
^
comfort
^
rolling noise
^
wear
Listed below are tires and matching wheel rim sizes recommended by Porsche:
Make and Type Tire Size
Rim Size
928 928S
Pirelli P 6
215/60 VR 15 7 J x 15
X
Pirelli P 7
225/50 VR 16 7 J x 16 X
X
Goodyear NCT 225/50 VR 16
7 J x 16 X X
Dunlop SP Sport
Super D4
225/50 VR 16 7J x 16 X
X
Other summer tires and wheel rim combinations are not approved by Porsche.
Notes on Pirelli P 6 tires
Three different versions of P 6 tires have been produced:
A - no special markings B - cross in circle below size code
215/60 VR 15
C - five-pointed stars in circles, each side of size code
215/60 VR 15
If different versions are used on the same vehicle, versions A and B are completely interchangeable.
Version C should be used on the front axle (preferably both tires at the same time) with any combination of A and B on the rear.
General installation instructions
Always use new rubber valves, Part No. 900.265.001.50, when replacing tires.