What type of oil does a 1984 Dodge Conquest take?

The 1984 Dodge Conquest requires API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 20W-20 (20Deg.F to 80Deg. F), 20W-40/50/30 (Above 20Deg.F). The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Automatic configuration.

How much oil does a 1984 Dodge Conquest need?

The 1984 Dodge Conquest takes 4.50 QTS. (4.25 L) of engine oil with the filter replaced.

What happens if I use the wrong oil in my 1984 Dodge Conquest?

Using oil that does not meet the API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 20W-20 (20Deg.F to 80Deg. F), 20W-40/50/30 (Above 20Deg.F) specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.

Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

1984 Dodge ConquestOil Type & Capacity

OEM spec from the factory service manual for the Automatic variant.

Quick Answer

Oil Type

$API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 20W-20 (20Deg.F to 80Deg. F), 20W-40/50/30 (Above 20Deg.F)

Capacity (w/ Filter)

4.50 QTS.

4.25 L

Variant

Automatic

This vehicle's factory manual

1984 Dodge Conquest: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.

Open this vehicle’s service manual

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What You'll Need

Engine Oil

$API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 20W-20 (20Deg.F to 80Deg. F), 20W-40/50/30 (Above 20Deg.F) for Dodge Conquest

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Frequently Asked Questions

What type of oil does a 1984 Dodge Conquest take?: The 1984 Dodge Conquest requires API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 20W-20 (20Deg.F to 80Deg. F), 20W-40/50/30 (Above 20Deg.F). The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Automatic configuration.
How much oil does a 1984 Dodge Conquest need?: The 1984 Dodge Conquest takes 4.50 QTS. (4.25 L) of engine oil with the filter replaced.
Can I use synthetic oil in my 1984 Dodge Conquest?: Yes — synthetic oil that meets the API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 20W-20 (20Deg.F to 80Deg. F), 20W-40/50/30 (Above 20Deg.F) specification is acceptable and often preferred for better protection and longer change intervals.
What happens if I use the wrong oil in my 1984 Dodge Conquest?: Using oil that does not meet the API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 20W-20 (20Deg.F to 80Deg. F), 20W-40/50/30 (Above 20Deg.F) specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.