General Motors — Changing Engine Oils
Maintenance · Engine/Transmission
From a General Motors owner's manual covering: 5.0L MPI, 5.0L MPI CES, 5.7L MPI, 5.7L MPI CES, 6.0L MPI, 6.0L MPI CES, 6.0LHO MPI CES, MP 5.0L, MP 5.7L, MP 6.0L. Check it applies to your exact model before use.
Before you start
- The Federal Water Pollution Control Act prohibits discharge of oil into navigable waters
Procedure
- With engine at normal operating temperature, remove dipstick
- Install a crankcase oil pump onto the dipstick tube and pump oil out
- Remove oil filter counterclockwise; discard old filter and sealing ring
- Coat new filter sealing ring with clean engine oil; install by hand
- Fill engine with recommended oil through valve cover oil fill
- Start engine and operate 5 minutes; check entire system for leaks
- Stop engine, wait 5 minutes, check oil level and correct
- Do not remove the oil filter bypass adapter when changing oil
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Oil Filter (remote-mounted) P/N 22679 Amazon eBay $20.75
- Crankcase Oil Capacity W/ NEW FILTER: Start with 4 Quarts (4.5 L)
Source: General Motors 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.