Engine: Technical Service Bulletins
- Engine - Approved Engine Oil Specification
- Engine - Approved Porsche A40 Engine Oils
- Vehicle - Parts Marking Locations/Requirements
- VIN Plate, Certification & Emission Label - Availability
- Engine Crankcase - Standard Replacement Parts
- Vehicle - Maintenance Requirements Update
- Tools - Auto Scopemeter & Engine Analyzer
- Cylinder Head - Correct Torque Specification
- Camshaft Housing and Manifold - Revised Sealing
- Ignition Distributor - Install Ventilation When Serviced
- Engine - Approved Engine Oils
- Engine - Porsche Approved Oils
- Engine - Cleaning of Oil Circuits
- Cylinder Head Studs - Installation Precautions
- Engine - Approved Engine Oils Overview