1990 Isuzu Pickup Oil Type & Capacity

The 1990 Isuzu Pickup oil type depends on the engine: the 1 Ton, MSG5E takes 5W-20 (5.2 quarts with filter); the 1 Ton, MUA5C takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup Extra Cab, 2.3 L, Automatic takes 5W-20 (4.2 quarts with filter); the LS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts with filter); the LS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts with filter); the LS, 2D Pickup Extra Cab, 2.6 E, 4WD takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup, 2.3 L, Automatic takes 5W-20 (4.2 quarts with filter); the LS, 2D Pickup, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts with filter); the LS, 2D Pickup, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts with filter); the LS, 2D Pickup, 2.6 E, 4WD takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts with filter); the LS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup Extra Cab, 4WD takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup Extra Cab, RWD, Automatic takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup Extra Cab, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup Extra Cab, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup, 2.3 L, Automatic takes 5W-20 (4.2 quarts with filter); the S, 2D Pickup, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts with filter); the S, 2D Pickup, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts with filter); the S, 2D Pickup, 2.6 E, 4WD takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts with filter); the S, 2D Pickup, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup Extra Cab, 2.3 L, Automatic takes 5W-20 (4.2 quarts with filter); the XS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts with filter); the XS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts with filter); the XS, 2D Pickup Extra Cab, 2.6 E, 4WD takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup, 2.3 L, Automatic takes 5W-20 (4.2 quarts with filter); the XS, 2D Pickup, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts with filter); the XS, 2D Pickup, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts with filter); the XS, 2D Pickup, 2.6 E, 4WD takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts with filter); the XS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts with filter), per the factory service manual.

Factory-spec answer

It depends on the engine:

Oil capacity by engine

EngineOil Type (viscosity)Capacity w/ FilterCapacity w/o FilterNotes
1 Ton, MSG5E — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
1 Ton, MUA5C — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup Extra Cab, 2.3 L, Automatic — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
LS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
LS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
LS, 2D Pickup Extra Cab, 2.6 E, 4WD — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup, 2.3 L, Automatic — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
LS, 2D Pickup, 2.3 L, Standard, MSG5E — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
LS, 2D Pickup, 2.3 L, Standard, MUA5C — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
LS, 2D Pickup, 2.6 E, 4WD — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup, 2.6 E, RWD, Automatic — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
LS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup Extra Cab, 4WD — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup Extra Cab, RWD, Automatic — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup Extra Cab, RWD, Standard, MSG5E — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup Extra Cab, RWD, Standard, MUA5C — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup, 2.3 L, Automatic — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
S, 2D Pickup, 2.3 L, Standard, MSG5E — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
S, 2D Pickup, 2.3 L, Standard, MUA5C — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
S, 2D Pickup, 2.6 E, 4WD — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup, 2.6 E, RWD, Automatic — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup, 2.6 E, RWD, Standard, MSG5E — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
S, 2D Pickup, 2.6 E, RWD, Standard, MUA5C — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup Extra Cab, 2.3 L, Automatic — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
XS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
XS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
XS, 2D Pickup Extra Cab, 2.6 E, 4WD — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup, 2.3 L, Automatic — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
XS, 2D Pickup, 2.3 L, Standard, MSG5E — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
XS, 2D Pickup, 2.3 L, Standard, MUA5C — 2.3L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)4.20 QTS.3.80 QTS.
XS, 2D Pickup, 2.6 E, 4WD — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup, 2.6 E, RWD, Automatic — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.
XS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C — 2.6L EngAPI - SAE 5W-20 (Below 20Deg.F), 5W-30 (Below 60Deg.F), 10W-30 (Above 0Deg.F), 20W-20/40 (Above 20Deg.F), 30 (Above 40Deg.F)5.20 QTS.4.80 QTS.

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More specs & repair guides for your Pickup

1990 Isuzu Pickup factory service manualAll fluid capacities (transmission, coolant, brakes)

Powered by factory manual data from our partner site AllOEMManuals.com.

Coolant capacity

9.5 quarts (8.99 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water

Frequently asked questions

What type of oil does a 1990 Isuzu Pickup take?

It depends on the engine: 1 Ton, MSG5E uses 5W-20; 1 Ton, MUA5C uses 5W-20; LS, 2D Pickup Extra Cab, 2.3 L, Automatic uses 5W-20; LS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E uses 5W-20; LS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C uses 5W-20; LS, 2D Pickup Extra Cab, 2.6 E, 4WD uses 5W-20; LS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic uses 5W-20; LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E uses 5W-20; LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C uses 5W-20; LS, 2D Pickup, 2.3 L, Automatic uses 5W-20; LS, 2D Pickup, 2.3 L, Standard, MSG5E uses 5W-20; LS, 2D Pickup, 2.3 L, Standard, MUA5C uses 5W-20; LS, 2D Pickup, 2.6 E, 4WD uses 5W-20; LS, 2D Pickup, 2.6 E, RWD, Automatic uses 5W-20; LS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E uses 5W-20; LS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C uses 5W-20; S, 2D Pickup Extra Cab, 4WD uses 5W-20; S, 2D Pickup Extra Cab, RWD, Automatic uses 5W-20; S, 2D Pickup Extra Cab, RWD, Standard, MSG5E uses 5W-20; S, 2D Pickup Extra Cab, RWD, Standard, MUA5C uses 5W-20; S, 2D Pickup, 2.3 L, Automatic uses 5W-20; S, 2D Pickup, 2.3 L, Standard, MSG5E uses 5W-20; S, 2D Pickup, 2.3 L, Standard, MUA5C uses 5W-20; S, 2D Pickup, 2.6 E, 4WD uses 5W-20; S, 2D Pickup, 2.6 E, RWD, Automatic uses 5W-20; S, 2D Pickup, 2.6 E, RWD, Standard, MSG5E uses 5W-20; S, 2D Pickup, 2.6 E, RWD, Standard, MUA5C uses 5W-20; XS, 2D Pickup Extra Cab, 2.3 L, Automatic uses 5W-20; XS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E uses 5W-20; XS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C uses 5W-20; XS, 2D Pickup Extra Cab, 2.6 E, 4WD uses 5W-20; XS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic uses 5W-20; XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E uses 5W-20; XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C uses 5W-20; XS, 2D Pickup, 2.3 L, Automatic uses 5W-20; XS, 2D Pickup, 2.3 L, Standard, MSG5E uses 5W-20; XS, 2D Pickup, 2.3 L, Standard, MUA5C uses 5W-20; XS, 2D Pickup, 2.6 E, 4WD uses 5W-20; XS, 2D Pickup, 2.6 E, RWD, Automatic uses 5W-20; XS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E uses 5W-20; XS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C uses 5W-20.

How much oil does a 1990 Isuzu Pickup take?

Capacity depends on the engine: 1 Ton, MSG5E holds 5.2 quarts with filter; 1 Ton, MUA5C holds 5.2 quarts with filter; LS, 2D Pickup Extra Cab, 2.3 L, Automatic holds 4.2 quarts with filter; LS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E holds 4.2 quarts with filter; LS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C holds 4.2 quarts with filter; LS, 2D Pickup Extra Cab, 2.6 E, 4WD holds 5.2 quarts with filter; LS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic holds 5.2 quarts with filter; LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E holds 5.2 quarts with filter; LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C holds 5.2 quarts with filter; LS, 2D Pickup, 2.3 L, Automatic holds 4.2 quarts with filter; LS, 2D Pickup, 2.3 L, Standard, MSG5E holds 4.2 quarts with filter; LS, 2D Pickup, 2.3 L, Standard, MUA5C holds 4.2 quarts with filter; LS, 2D Pickup, 2.6 E, 4WD holds 5.2 quarts with filter; LS, 2D Pickup, 2.6 E, RWD, Automatic holds 5.2 quarts with filter; LS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E holds 5.2 quarts with filter; LS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C holds 5.2 quarts with filter; S, 2D Pickup Extra Cab, 4WD holds 5.2 quarts with filter; S, 2D Pickup Extra Cab, RWD, Automatic holds 5.2 quarts with filter; S, 2D Pickup Extra Cab, RWD, Standard, MSG5E holds 5.2 quarts with filter; S, 2D Pickup Extra Cab, RWD, Standard, MUA5C holds 5.2 quarts with filter; S, 2D Pickup, 2.3 L, Automatic holds 4.2 quarts with filter; S, 2D Pickup, 2.3 L, Standard, MSG5E holds 4.2 quarts with filter; S, 2D Pickup, 2.3 L, Standard, MUA5C holds 4.2 quarts with filter; S, 2D Pickup, 2.6 E, 4WD holds 5.2 quarts with filter; S, 2D Pickup, 2.6 E, RWD, Automatic holds 5.2 quarts with filter; S, 2D Pickup, 2.6 E, RWD, Standard, MSG5E holds 5.2 quarts with filter; S, 2D Pickup, 2.6 E, RWD, Standard, MUA5C holds 5.2 quarts with filter; XS, 2D Pickup Extra Cab, 2.3 L, Automatic holds 4.2 quarts with filter; XS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E holds 4.2 quarts with filter; XS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C holds 4.2 quarts with filter; XS, 2D Pickup Extra Cab, 2.6 E, 4WD holds 5.2 quarts with filter; XS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic holds 5.2 quarts with filter; XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E holds 5.2 quarts with filter; XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C holds 5.2 quarts with filter; XS, 2D Pickup, 2.3 L, Automatic holds 4.2 quarts with filter; XS, 2D Pickup, 2.3 L, Standard, MSG5E holds 4.2 quarts with filter; XS, 2D Pickup, 2.3 L, Standard, MUA5C holds 4.2 quarts with filter; XS, 2D Pickup, 2.6 E, 4WD holds 5.2 quarts with filter; XS, 2D Pickup, 2.6 E, RWD, Automatic holds 5.2 quarts with filter; XS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E holds 5.2 quarts with filter; XS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C holds 5.2 quarts with filter.

Can I use synthetic oil in my 1990 Isuzu Pickup?

Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Isuzu Pickup. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

Other Isuzu Pickup years

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