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All Technical Service Bulletins for Fuel Injector: > < Fuel Pressure Release|Service Precautions
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Fuel Injector: Customer Interest
Fuel Injectors - Cleaning Partially Restricted Injectors

Subject:

Cleaning of Fuel Injectors
Model

911, 928S

944, 944 Turbo
Group

2
Part Identifier

2440
Number

8510
December 6, 1985
Partially restricted fuel injectors can be cleaned through the following procedure and material:

1.

Fill up fuel tank.

2.

Pour 20 ounces of "Techron" into the fuel tank.

Note:

Techron is marketed by Chevron

3.

The car should be driven until the fuel tank is half empty.

4.

Refill the fuel tank.

5.

This procedure, as outlined from point 1 to 4 should then be repeated 2 additional times.

6.

To keep injectors clean, we recommend adding 20 ounces of Techron after 5 fuel tank refills. However, never more than 20 ounces per 3,000
miles.

All Technical Service Bulletins for Fuel Injector: > < Fuel Pressure Release|Service Precautions