EXPERTEC TSB (56-6)

EXPERTEC TSB

TECHNICAL SERVICE BULLETIN

OIL AND FILTER CHARTS - REVISED SPECS

Model(s): All Chevrolet Models

Bulletin No.: Chevrolet 56-6

Date: 12/11/1984

SERVICE INFORMATION

THE ENGINE OIL AND FILTER CHANGE INTERVAL CHARTS SHOWN ON PAGES 5-6 AND 5-9 OF THE SUBJECT OWNER'S MANUAL, PART NO. 14085215-A, ARE INCORRECTLY LOCATED AND ARE REVERSED AS PERTAIN TO ENGINE APPLICATION. THE CHART SHOWN ON PAGES 5-6 APPLIES TO DIESEL ENGINES AND THE CHART ON PAGE 5-9 PERTAINS TO GASOLINE ENGINES. THE "B" EDITION OF THE OWNER'S MANUAL WILL SHOW THE CHARTS IN THEIR PROPER LOCATION. THE CHARTS ARE REPRODUCED BELOW WITH THE PROPER IDENTIFICATION AND SHOULD BE USED WHEN DETERMINING THE CORRECT OIL AND FILTER INTERVAL CHANGE FOR YOUR VEHICLE. GASOLINE ENGINE TYPE OF USE

• OPERATING IN DUSTY AREAS
• TOWING TRAILER
• IDLING FOR EXTENDED PERIODS AND/OR LOW SPEED OPERATION SUCH AS FOUND IN POLICE TAXI OR DOOR-TO-DOOR DELIVERY SERVICE
• OPERATING WHEN OUTSIDE TEMPERATURES REMAIN BELOW FREEZING AND WHEN MOST TRIPS ARE LESS THAN 4 MILES (6 KILOMETERS) CHANGE INTERVAL
• CHANGE ENGINE OIL AND FILTER EVERY 3,000 MILES (5,000 KILOMETERS) OR 3 MONTHS, WHICHEVER COMES FIRST TYPE OF USE
• WHEN NONE OF THE ABOVE CONDITIONS APPLY AS A GENERAL RULE THE VEHICLE IS DRIVEN DAILY FOR
  1. A MINIMUM OF 15 MILES (25 KILOMETERS) OR MORE
  2. OR CONTINUOUSLY FOR 30 MINUTES OR MORE CHANGE INTERVAL

• CHANGE ENGINE OIL EVERY 7,500 MILES (12,500 KM) OR 12 MONTHS, WHICHEVER COMES FIRST. CHANGE ENGINE OIL FILTER AT FIRST OIL CHANGE THEN EVERY OTHER OIL CHANGE IF MILEAGE DETERMINES WHEN YOU CHANGE OIL. IF TIME DETERMINES CHANGE INTERVALS, CHANGE THE FILTER WITH EACH OIL CHANGE. DIESEL ENGINE TYPE OF USE
• OPERATING IN DUSTY AREAS
• TOWING A TRAILER
• IDLING FOR EXTENDED PERIODS AND/OR LOW SPEED OPERATION.
• OPERATING WHEN OUTSIDE TEMPERATURES REMAIN BELOW FREEZING AND WHEN MOST TRIPS ARE LESS THAN 4 MILES (6 KILOMETERS). CHANGE INTERVAL
• CHANGE ENGINE OIL AND FILTER EVERY 2,500 MILES (4,000 KILOMETER) OR 3 MONTHS, WHICHEVER COMES FIRST TYPE OF USE
• WHEN NONE OF THE ABOVE CONDITIONS APPLY, AND AS A GENERAL RULE THE VEHICLE IS DRIVEN DAILY FOR A
  1. MINIMUM OF 15 MILES (25 KILOMETERS) OR MORE
  2. OR CONTINUOUSLY FOR 30 MINUTES OR MORE CHANGE INTERVAL
• CHANGE ENGINE OIL AND FILTER EVERY 5,000 MILES (8,000 KILOMETERS) OR 12 MONTHS, WHICHEVER COMES FIRST