Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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STEVE W.
AUTOMOTIVE REPAIR CONTRIBUTOR
15,146 POSTS
That truck uses API G-L4 aka 75W-90 or 80W-90 Should be around 4.5 pints if you drain it. To change it you pull the drain plug at the bottom, then use the fill plug to add the oil in.