Campaign - Engine Oil/Filter Replacement: Overview

NUMBER:
93-C-03

DATE:
NOVEMBER 6, 1992

GROUP:
6A - ENGINE MECHANICAL

SUBJECT:
ENGINE OIL/FILTER REPLACEMENT

MODELS:
1993 C/K TRUCKS (BELOW 8500 GVW) AND G VANS (BELOW 8500 GVW) WITH FLINT BUILT 5.0L (L03) OR 5.7L (L05) ENGINES (VIN CODE H & K)


GENERAL MOTORS HAS DETERMINED THAT CERTAIN 5.0L (L03) AND 5.7L (L05) ENGINES FROM THE FLINT V8 ENGINE PLANT HAVE ENGINE OIL MIXTURES THAT DO NOT MEET THE 5W-30 REQUIRED FUEL ECONOMY IMPROVEMENT FACTOR SPECIFICATION.

TO CORRECT THIS CONDITION DEALERS ARE TO CHANGE THE OIL AND REPLACE THE OIL FILTER ON AFFECTED VEHICLES PRIOR TO DELIVERY.