911 Carrera Coupe F6-3164cc 3.2L (1984)
Engine Oil: Technical Service Bulletins
Engine - Motor Oils That Minimize Carbon Build-Up
Number
8905
Group
1
Model
All
Part Identifier
170
May 5, 1989
Cars operated in certain areas of the U.S. are more prone to carbon formation on the intake valves than in others. The following engine oils have been
tested and found to contribute less to this carbon build-up. Use of one of these oils may prove helpful in cars operated in these areas of the country.
Temperature Ranges for Approved Engine Oils