Caterpillar — Engine Oil - Change
Maintenance
From a Caterpillar owner's manual covering: B9P1-Up, CWW1-Up, CWY1-Up, GAS1-Up, GSB1-Up, GTX1-Up, GZA1-Up, GZB1-Up, GZC1-Up, GZG1-Up, GZH1-Up, GZJ1-Up…. Check it applies to your exact model before use.
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Before you start
- Hot oil and components can cause personal injury
- Do not drain oil when cold
Procedure
- Stop engine after normal operating temperature reached
- Drain oil via drain valve, pump, quick-connect coupling, or drain plug
- Tighten drain plug to 145 ± 15 N·m (105 ± 10 lb ft) if used
- Replace engine oil filter elements before refilling
- Fill crankcase through oil filler tube to correct grade/amount
- Prelube: crank with fuel supply closed 15-30 s until oil pressure reaches 70 kPa (10 psi)
- Start engine, run at low idle 2 minutes, inspect for leaks
- Stop engine, allow to drain back 10 minutes, recheck oil level
Specs & values
- Drain plug torque 145 ± 15 N·m (105 ± 10 lb ft)
- Prelube minimum oil pressure 70 kPa (10 psi)
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.