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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 233 (ENGINE CONTROLS - SERVICE & ADJUSTMENT SPECIFICATIONS)QUICK-SERVICESERVICE INTERVALS & SPECIFICATIONS
1999 GMC Forward Control 5.7 R, Automatic

Service Intervals & Specifications

1999 GMC Forward Control 5.7 R, AutomaticSECTION Service Intervals & Specifications
WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
REPLACEMENT INTERVALS

Component Miles
Air Filter (1) 30,000
Accessory Drive Belt (2)
Automatic Transaxle Fluid (3)
Engine Coolant (4) (5)
Fuel Filter (6)
Oil & Filter (7)
Spark Plugs 100,000
Supercharger Oil (8)
(1) Inspect every 15,000, replace as necessary. AC Type A-1208C (GM P/N 25099149), or equivalent.
(2) Check and replace as necessary.
(3) Under normal service conditions, replace at 100,000 miles. If used under severe service conditions, replace every 50,000 miles.
(4) Use only DEX-COOL(R) coolant or equivalent silicate-free coolant.
(5) Replace at 60 months or 150,000 miles, whichever occurs first.
(6) There is no service interval for fuel filter replacement. Only replace the fuel filter if the filter is restricted. Inspect the fuel tank internally and clean the fuel tank if a restricted fuel filter is found.
(7) Replace as indicated by GM Oil Life System(tm) monitor or every 12 months, whichever occurs first. Reset monitor. If system is reset accidentally or not functional, change oil every 3,000 miles or 3 months from last oil change, whichever occurs first. Use AC Type PF-58, or equivalent.
(8) Check supercharger oil every 30,000 miles or every 36 months, whichever occurs first.
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