2005 Buick Rendezvous Oil Type & Capacity

The 2005 Buick Rendezvous oil type depends on the engine: the CX, AWD takes 5W-30 (4.0 quarts qt with filter); the CX, FWD takes 5W-30 (4.0 quarts qt with filter); the CXL, 3.4 E, AWD takes 5W-30 (4.0 quarts qt with filter); the CXL, 3.4 E, FWD takes 5W-30 (4.0 quarts qt with filter); the CXL, 3.6 7, AWD takes 5W-30 (5.5 quarts qt with filter); the CXL, 3.6 7, FWD takes 5W-30 (5.5 quarts qt with filter); the Ultra, AWD takes 5W-30 (5.5 quarts qt with filter); the Ultra, FWD takes 5W-30 (5.5 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
CX, AWD — 3.4L EngAPI - SAE 5W-304.00 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.
CX, FWD — 3.4L EngAPI - SAE 5W-304.00 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.
CXL, 3.4 E, AWD — 3.4L EngAPI - SAE 5W-304.00 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.
CXL, 3.4 E, FWD — 3.4L EngAPI - SAE 5W-304.00 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.
CXL, 3.6 7, AWD — 3.6L EngAPI - SAE 5W-305.50 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.
CXL, 3.6 7, FWD — 3.6L EngAPI - SAE 5W-305.50 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.
Ultra, AWD — 3.6L EngAPI - SAE 5W-305.50 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.
Ultra, FWD — 3.6L EngAPI - SAE 5W-305.50 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 factory specs & repair guides for your Rendezvous

🛞 2005 Buick Rendezvous Tire Size & Pressure →🌧️ 2005 Buick Rendezvous Wiper Blade Sizes →💡 2005 Buick Rendezvous Light Bulb Sizes →📖 2005 Buick Rendezvous Factory Service Manual →All fluid capacities (transmission, coolant, brakes)

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Coolant capacity

9.6 quarts (9.08 L) — 50/50 mixture of DEX-COOL and clean drinkable water

Frequently asked questions

What type of oil does a 2005 Buick Rendezvous take?

It depends on the engine: CX, AWD uses 5W-30; CX, FWD uses 5W-30; CXL, 3.4 E, AWD uses 5W-30; CXL, 3.4 E, FWD uses 5W-30; CXL, 3.6 7, AWD uses 5W-30; CXL, 3.6 7, FWD uses 5W-30; Ultra, AWD uses 5W-30; Ultra, FWD uses 5W-30.

What is the oil capacity of a 2005 Buick Rendezvous?

Oil capacity depends on the engine: CX, AWD holds 4.0 quarts with filter; CX, FWD holds 4.0 quarts with filter; CXL, 3.4 E, AWD holds 4.0 quarts with filter; CXL, 3.4 E, FWD holds 4.0 quarts with filter; CXL, 3.6 7, AWD holds 5.5 quarts with filter; CXL, 3.6 7, FWD holds 5.5 quarts with filter; Ultra, AWD holds 5.5 quarts with filter; Ultra, FWD holds 5.5 quarts with filter.

How often should I change the oil in my 2005 Buick Rendezvous?

Most 2005 Buick Rendezvous 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 — Buick recommends intervals based on driving conditions, not just mileage.

Can I use synthetic oil in my 2005 Buick Rendezvous?

Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2005 Buick Rendezvous. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

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