Engine Lubrication - Oils That Minimize Carbon Build-Up

9219porsche01

Model
All

Part Identifier
1700


Group
1

Number
9207


April 17, 1992


Subject:
Engine Oils that Minimize
Carbon Build-up








ATTENTION:
Service Manager/Service Technician

This bulletin supersedes Technical Bulletin Group 1, Number 8905, Book F, pages 35 - 36.

Models Affected:
All

Concern:
Cars operated in certain areas of the U.S. are more prone to carbon formation on the intake valves than in others.

General Information:
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.