Quick Summary
Looking for the correct oil type for your 1987 Chevrolet R20? 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 Most Common
Verified Data
Capacity
4.5 QUART
Viscosity
10W-30
Oil Filter
EAO23
๐ข๏ธ 4.8L 6 -cyl Engine Code [T] T
Verified Data
Capacity
6.0 QUART
Viscosity
10W-30
Oil Filter
EAO59
Drain Plug Torque
20 ft/lbs
๐ข๏ธ 5.0L 8 -cyl Engine Code [H] H
Verified Data
Capacity
5.0 QUART
Viscosity
10W-30
Oil Filter
EAO24
Drain Plug Torque
20 ft/lbs
๐ข๏ธ 5.7L 8 -cyl Engine Code [K] K
Verified Data
Capacity
5.0 QUART
Viscosity
10W-30
Oil Filter
EAO24
Drain Plug Torque
20 ft/lbs
๐ข๏ธ 6.2L 8 -cyl Engine Code [C] C Diesel
Diesel
Verified Data
Capacity
7.0 QUART
Viscosity
10W-30
Oil Filter
EAO24
๐ข๏ธ 6.2L 8 -cyl Engine Code [J] J Diesel
Diesel
Verified Data
Capacity
7.0 QUART
Viscosity
10W-30
Oil Filter
EAO24
๐ข๏ธ 7.4L 8 -cyl Engine Code [N] N
Verified Data
Capacity
6.0 QUART
Viscosity
10W-30
Oil Filter
EAO24
Drain Plug Torque
20 ft/lbs
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Oil Filter
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Drain Plug Gasket
Replace every oil change - don't reuse!
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Oil Drain Pan
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No-spill oil pouring
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Common Trouble Codes for 1987 Chevrolet R20
Get vehicle-specific repair guides for these codes