How much oil does a 1983 Mazda Rx-7 need?

The 1983 Mazda Rx-7 takes 4.40 QTS. (4.16 L) of engine oil with the filter replaced.

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1983 Mazda Rx-7Oil Type & Capacity

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

Quick Answer

Oil Type

$SAE 5W-30 (Below -20Deg.F to 35Deg.F), SAE 5W-20 (Below -20Deg.F to over 0Deg.F),10W-30 (Below -10Deg.F to over 85Deg.F) 10W-40, 10W-50 (Below -10Deg.F to over 120Deg.F) 20W-40, 20W-50 (Below 10Deg.F to over 120Deg.F)

Capacity (w/ Filter)

4.40 QTS.

4.16 L

Variant

GS, Automatic

This vehicle's factory manual

1983 Mazda Rx-7: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.

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What You'll Need

Engine Oil

$SAE 5W-30 (Below -20Deg.F to 35Deg.F), SAE 5W-20 (Below -20Deg.F to over 0Deg.F),10W-30 (Below -10Deg.F to over 85Deg.F) 10W-40, 10W-50 (Below -10Deg.F to over 120Deg.F) 20W-40, 20W-50 (Below 10Deg.F to over 120Deg.F) for Mazda Rx-7

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Frequently Asked Questions

What type of oil does a 1983 Mazda Rx-7 take?: The 1983 Mazda Rx-7 requires SAE 5W-30 (Below -20Deg.F to 35Deg.F), SAE 5W-20 (Below -20Deg.F to over 0Deg.F),10W-30 (Below -10Deg.F to over 85Deg.F) 10W-40, 10W-50 (Below -10Deg.F to over 120Deg.F) 20W-40, 20W-50 (Below 10Deg.F to over 120Deg.F). The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the GS, Automatic configuration.
How much oil does a 1983 Mazda Rx-7 need?: The 1983 Mazda Rx-7 takes 4.40 QTS. (4.16 L) of engine oil with the filter replaced.
Can I use synthetic oil in my 1983 Mazda Rx-7?: Yes — synthetic oil that meets the SAE 5W-30 (Below -20Deg.F to 35Deg.F), SAE 5W-20 (Below -20Deg.F to over 0Deg.F),10W-30 (Below -10Deg.F to over 85Deg.F) 10W-40, 10W-50 (Below -10Deg.F to over 120Deg.F) 20W-40, 20W-50 (Below 10Deg.F to over 120Deg.F) specification is acceptable and often preferred for better protection and longer change intervals.
What happens if I use the wrong oil in my 1983 Mazda Rx-7?: Using oil that does not meet the SAE 5W-30 (Below -20Deg.F to 35Deg.F), SAE 5W-20 (Below -20Deg.F to over 0Deg.F),10W-30 (Below -10Deg.F to over 85Deg.F) 10W-40, 10W-50 (Below -10Deg.F to over 120Deg.F) 20W-40, 20W-50 (Below 10Deg.F to over 120Deg.F) specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.