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 qt with filter); the 1 Ton, MUA5C takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup Extra Cab, 2.3 L, Automatic takes 5W-20 (4.2 quarts qt with filter); the LS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts qt with filter); the LS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts qt with filter); the LS, 2D Pickup Extra Cab, 2.6 E, 4WD takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup, 2.3 L, Automatic takes 5W-20 (4.2 quarts qt with filter); the LS, 2D Pickup, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts qt with filter); the LS, 2D Pickup, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts qt with filter); the LS, 2D Pickup, 2.6 E, 4WD takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts qt with filter); the LS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup Extra Cab, 4WD takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup Extra Cab, RWD, Automatic takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup Extra Cab, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup Extra Cab, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup, 2.3 L, Automatic takes 5W-20 (4.2 quarts qt with filter); the S, 2D Pickup, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts qt with filter); the S, 2D Pickup, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts qt with filter); the S, 2D Pickup, 2.6 E, 4WD takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts qt with filter); the S, 2D Pickup, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup Extra Cab, 2.3 L, Automatic takes 5W-20 (4.2 quarts qt with filter); the XS, 2D Pickup Extra Cab, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts qt with filter); the XS, 2D Pickup Extra Cab, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts qt with filter); the XS, 2D Pickup Extra Cab, 2.6 E, 4WD takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup Extra Cab, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup Extra Cab, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup, 2.3 L, Automatic takes 5W-20 (4.2 quarts qt with filter); the XS, 2D Pickup, 2.3 L, Standard, MSG5E takes 5W-20 (4.2 quarts qt with filter); the XS, 2D Pickup, 2.3 L, Standard, MUA5C takes 5W-20 (4.2 quarts qt with filter); the XS, 2D Pickup, 2.6 E, 4WD takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup, 2.6 E, RWD, Automatic takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup, 2.6 E, RWD, Standard, MSG5E takes 5W-20 (5.2 quarts qt with filter); the XS, 2D Pickup, 2.6 E, RWD, Standard, MUA5C takes 5W-20 (5.2 quarts qt 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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Complete Oil Change Bundle for 1990 Isuzu Pickup

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Preferred Oil Brand:
Mobil 1 5W-20 Full Synthetic OilExact Spec
5-Quart Jug + 1-Quart Bottle (5.2 quarts needed)
$37.96Item Link ↗
1990 Isuzu Pickup Premium Synthetic Oil FilterExact Fit
OEM-fitment high-efficiency synthetic filter media (1 Ton, MSG5E)
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Oil Drain Plug Crush Washer Gaskets (5-Pack)Recommended
Direct-fit replacement seal — prevents oil leaks after tightening
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15-Quart Low-Profile Drain Pan with Pour SpoutTool
Catch-all basin with anti-splash lip & secure transport cap
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RhinoRamps 12,000 lb Drive-Up Vehicle RampsTool
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Heavy-Duty Black Nitrile Gloves (Box of 100)PPE
6-mil commercial-grade chemical & oil resistant mechanics gloves
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Wide-mouth funnel with flexible neck to eliminate engine bay spills
$8.99Item Link ↗
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Ultra-absorbent lint-free automotive towels for clean-up
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$56.94 est. total
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💡 Capacity Note: Your 1990 Isuzu Pickup holds 5.2 quarts with filter. Since standard jugs are 5 quarts, be sure to pick up extra 1-quart bottles or a 2-pack to reach the full mark on the dipstick.

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More factory specs & repair guides for your Pickup

🛞 1990 Isuzu Pickup Tire Size & Pressure →🌧️ 1990 Isuzu Pickup Wiper Blade Sizes →💡 1990 Isuzu Pickup Light Bulb Sizes →📖 1990 Isuzu Pickup Factory Service Manual →All fluid capacities (transmission, coolant, brakes)

Powered by factory manual data from our partner network 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.

What is the oil capacity of a 1990 Isuzu Pickup?

Oil 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.

How often should I change the oil in my 1990 Isuzu Pickup?

Most 1990 Isuzu Pickup owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Isuzu recommends intervals based on driving conditions, not just mileage.

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

1995 Pickup1994 Pickup1993 Pickup1992 Pickup1991 Pickup1989 Pickup1988 Pickup1987 Pickup1986 Pickup1985 Pickup1984 Pickup1983 Pickup

Other Isuzu models

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