1986 Nissan Pickup Oil Type & Capacity

It depends on the engine: Base, 2D Pickup Extra Cab, 2.4 N, 4WD uses 5W-30; Base, 2D Pickup Extra Cab, 2.4 N, RWD, Automatic uses 5W-30; Base, 2D Pickup Extra Cab, 2.4 N, RWD, Standard uses 5W-30; Base, 2D Pickup Extra Cab, 2.5 J uses 5W-30; Base, 2D Pickup, _NA_, 4WD uses 5W-30; Base, 2D Pickup, _NA_, RWD, Automatic uses 5W-30; Base, 2D Pickup, _NA_, RWD, Standard, FS5W71B uses 5W-30; Base, 2D Pickup, _NA_, RWD, Standard, FS5W71C uses 5W-30; Base, 2D Pickup, Z24 uses 5W-30; E, 2D Pickup Extra Cab, Automatic uses 5W-30; E, 2D Pickup Extra Cab, Standard uses 5W-30; E, 2D Pickup, 4WD uses 5W-30; E, 2D Pickup, RWD, Automatic uses 5W-30; E, 2D Pickup, RWD, Standard uses 5W-30; SE, 2D Pickup Extra Cab, 4WD uses 5W-30; SE, 2D Pickup Extra Cab, RWD, Automatic uses 5W-30; SE, 2D Pickup Extra Cab, RWD, Standard uses 5W-30; SE, 2D Pickup, 4WD uses 5W-30; SE, 2D Pickup, RWD, Automatic uses 5W-30; SE, 2D Pickup, RWD, Standard uses 5W-30; ST, 2D Pickup Extra Cab, _NA_, 4WD uses 5W-30; ST, 2D Pickup Extra Cab, _NA_, RWD, Automatic uses 5W-30; ST, 2D Pickup Extra Cab, _NA_, RWD, Standard uses 5W-30; ST, 2D Pickup Extra Cab, Z24 uses 5W-30; ST, 2D Pickup, _NA_, 4WD uses 5W-30; ST, 2D Pickup, _NA_, RWD, Automatic uses 5W-30; ST, 2D Pickup, _NA_, RWD, Standard uses 5W-30; ST, 2D Pickup, Z24 uses 5W-30; XE, 2D Pickup Extra Cab, 4WD uses 5W-30; XE, 2D Pickup Extra Cab, RWD, Automatic uses 5W-30; XE, 2D Pickup Extra Cab, RWD, Standard uses 5W-30; XE, 2D Pickup, 4WD uses 5W-30; XE, 2D Pickup, RWD, Automatic uses 5W-30; XE, 2D Pickup, RWD, Standard uses 5W-30.

Capacity depends on the engine: Base, 2D Pickup Extra Cab, 2.4 N, 4WD holds 3.9 quarts with filter; Base, 2D Pickup Extra Cab, 2.4 N, RWD, Automatic holds 3.9 quarts with filter; Base, 2D Pickup Extra Cab, 2.4 N, RWD, Standard holds 3.9 quarts with filter; Base, 2D Pickup Extra Cab, 2.5 J holds 5.75 quarts with filter; Base, 2D Pickup, _NA_, 4WD holds 3.9 quarts with filter; Base, 2D Pickup, _NA_, RWD, Automatic holds 3.9 quarts with filter; Base, 2D Pickup, _NA_, RWD, Standard, FS5W71B holds 3.9 quarts with filter; Base, 2D Pickup, _NA_, RWD, Standard, FS5W71C holds 3.9 quarts with filter; Base, 2D Pickup, Z24 holds 3.9 quarts with filter; E, 2D Pickup Extra Cab, Automatic holds 3.9 quarts with filter; E, 2D Pickup Extra Cab, Standard holds 3.9 quarts with filter; E, 2D Pickup, 4WD holds 3.9 quarts with filter; E, 2D Pickup, RWD, Automatic holds 3.9 quarts with filter; E, 2D Pickup, RWD, Standard holds 3.9 quarts with filter; SE, 2D Pickup Extra Cab, 4WD holds 4.25 quarts with filter; SE, 2D Pickup Extra Cab, RWD, Automatic holds 4.25 quarts with filter; SE, 2D Pickup Extra Cab, RWD, Standard holds 4.25 quarts with filter; SE, 2D Pickup, 4WD holds 4.25 quarts with filter; SE, 2D Pickup, RWD, Automatic holds 4.25 quarts with filter; SE, 2D Pickup, RWD, Standard holds 4.25 quarts with filter; ST, 2D Pickup Extra Cab, _NA_, 4WD holds 3.9 quarts with filter; ST, 2D Pickup Extra Cab, _NA_, RWD, Automatic holds 3.9 quarts with filter; ST, 2D Pickup Extra Cab, _NA_, RWD, Standard holds 3.9 quarts with filter; ST, 2D Pickup Extra Cab, Z24 holds 3.9 quarts with filter; ST, 2D Pickup, _NA_, 4WD holds 3.9 quarts with filter; ST, 2D Pickup, _NA_, RWD, Automatic holds 3.9 quarts with filter; ST, 2D Pickup, _NA_, RWD, Standard holds 3.9 quarts with filter; ST, 2D Pickup, Z24 holds 3.9 quarts with filter; XE, 2D Pickup Extra Cab, 4WD holds 3.9 quarts with filter; XE, 2D Pickup Extra Cab, RWD, Automatic holds 3.9 quarts with filter; XE, 2D Pickup Extra Cab, RWD, Standard holds 3.9 quarts with filter; XE, 2D Pickup, 4WD holds 3.9 quarts with filter; XE, 2D Pickup, RWD, Automatic holds 3.9 quarts with filter; XE, 2D Pickup, RWD, Standard holds 3.9 quarts with filter.

Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1986 Nissan Pickup. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.