2006 Isuzu Ascender Oil Type & Capacity

The 2006 Isuzu Ascender oil type depends on the engine: the Limited, 4WD takes 5W-30 (6.0 quarts with filter); the Limited, RWD takes 5W-30 (6.0 quarts with filter); the LS, 4.2 S, 4WD takes 5W-30 (7.0 quarts with filter); the LS, 4.2 S, RWD takes 5W-30 (7.0 quarts with filter); the LS, 5.3 M, 4WD takes 5W-30 (6.0 quarts with filter); the LS, 5.3 M, RWD takes 5W-30 (6.0 quarts with filter); the S, 4.2 S, 4WD takes 5W-30 (7.0 quarts with filter); the S, 4.2 S, RWD takes 5W-30 (7.0 quarts with filter); the S, 5.3 M, 4WD takes 5W-30 (6.0 quarts with filter); the S, 5.3 M, RWD takes 5W-30 (6.0 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
Limited, 4WD — 5.3L EngAPI - SAE 5W-306.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
Limited, RWD — 5.3L EngAPI - SAE 5W-306.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
LS, 4.2 S, 4WD — 4.2L EngAPI - SAE 5W-307.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
LS, 4.2 S, RWD — 4.2L EngAPI - SAE 5W-307.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
LS, 5.3 M, 4WD — 5.3L EngAPI - SAE 5W-306.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
LS, 5.3 M, RWD — 5.3L EngAPI - SAE 5W-306.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
S, 4.2 S, 4WD — 4.2L EngAPI - SAE 5W-307.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
S, 4.2 S, RWD — 4.2L EngAPI - SAE 5W-307.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
S, 5.3 M, 4WD — 5.3L EngAPI - SAE 5W-306.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.
S, 5.3 M, RWD — 5.3L EngAPI - SAE 5W-306.00 QTS.Use oil that meets GM Standard GM6094M. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures.

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More specs & repair guides for your Ascender

2006 Isuzu Ascender factory service manualAll fluid capacities (transmission, coolant, brakes)

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

Coolant capacity

17.9 quarts (16.93 L) — 50/50 mixture of DEX-COOL and drinkable water

Frequently asked questions

What type of oil does a 2006 Isuzu Ascender take?

It depends on the engine: Limited, 4WD uses 5W-30; Limited, RWD uses 5W-30; LS, 4.2 S, 4WD uses 5W-30; LS, 4.2 S, RWD uses 5W-30; LS, 5.3 M, 4WD uses 5W-30; LS, 5.3 M, RWD uses 5W-30; S, 4.2 S, 4WD uses 5W-30; S, 4.2 S, RWD uses 5W-30; S, 5.3 M, 4WD uses 5W-30; S, 5.3 M, RWD uses 5W-30.

How much oil does a 2006 Isuzu Ascender take?

Capacity depends on the engine: Limited, 4WD holds 6.0 quarts with filter; Limited, RWD holds 6.0 quarts with filter; LS, 4.2 S, 4WD holds 7.0 quarts with filter; LS, 4.2 S, RWD holds 7.0 quarts with filter; LS, 5.3 M, 4WD holds 6.0 quarts with filter; LS, 5.3 M, RWD holds 6.0 quarts with filter; S, 4.2 S, 4WD holds 7.0 quarts with filter; S, 4.2 S, RWD holds 7.0 quarts with filter; S, 5.3 M, 4WD holds 6.0 quarts with filter; S, 5.3 M, RWD holds 6.0 quarts with filter.

Can I use synthetic oil in my 2006 Isuzu Ascender?

Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2006 Isuzu Ascender. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

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