Quick Summary
Looking for the correct oil type for your 1991 Chevrolet S SERIES BLAZER? According to factory specs, the 4.3L 6 -cyl Engine Code [Z] Z requires 10W-30 viscosity oil. Using the right oil capacity of 4.5 QUARTS ensures engine longevity and fuel efficiency.
๐ข๏ธ 4.3L 6 -cyl Engine Code [Z] Z
Verified Data
Capacity
4.5 QUART
Viscosity
10W-30
Oil Filter
EAO23
Drain Plug Torque
18 ft/lbs
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Replace every oil change - don't reuse!
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Common Trouble Codes for 1991 Chevrolet S SERIES BLAZER
Get vehicle-specific repair guides for these codes