Chevrolet 1995 Tahoe Owner's Manual page 371

Schedule I 1 Definition
-
Gasoline Engines With Heavy Duty
Emissions
Follow Schedule I1
O ~ I I J -
if none of the conditions from Schedule 1 is true.
Schedule 11 Intervals
-
Gasoline Engines with Heavy Duty
Emissions
Every 6,000 Miles (10 000 km)
Engine Oil and Filter Change (or every 3 months, whichever occurs first)
Chassis Lubrication (or every 3 months, whichever occurs first)
Drive Axle Service
At 6,000 Miles (10 000 km)
-
Then Every 12,000 Miles (20 000 km)
Tire Rotation
Every 12,000 Miles (20 000 km)
Engine Accessory Drive Belt Inspection
Shields and Underhood Insulation Inspection
Thermostatically Controlled Engine Cooling Fan Check (or every
12 months, whichever occurs first)
Every 24,000 Miles (40 000 km)
Cooling System Service (or every 24 months, whichever occurs first)
Air Cleaner Filter Replacement
Front Wheel Bearing Repack (or at Each Brake Relining) (2-Wheel Drive
Only
1
Fuel Filter Replacement
Engine Timing Check
Thermostatically Controlled Air Cleaner Inspection
Air Intake System Inspection