How much oil does a 1988 Porsche 928 need?

The 1988 Porsche 928 takes 2.00 GALS. (7.57 L) of engine oil with the filter replaced.

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1988 Porsche 928Oil Type & Capacity

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

Quick Answer

Oil Type

$SAE 5W-20 (Below -20Deg.F to 15Deg.F), 5W-30 (-20Deg.F to 30Deg.F),10W-30 (-10Deg.F to 70Deg.F), 10W-40/50 (-5Deg.F to 95Deg.F), 15W-40/50 (5Deg.F to Above 100Deg.F), 20W-50 (15Deg.F to Above 100Deg.F)

Capacity (w/ Filter)

2.00 GALS.

7.57 L

Variant

Automatic

This vehicle's factory manual

The oil spec is above. This opens the fluids section of the 1988 Porsche 928 Automatic factory book.

Open the 1988 Porsche manual

Sister site: See this spec on WhatTypeOfOil.com — our quick oil type & capacity lookup for every vehicle.

Other specs:All specs

What You'll Need

Engine Oil

$SAE 5W-20 (Below -20Deg.F to 15Deg.F), 5W-30 (-20Deg.F to 30Deg.F),10W-30 (-10Deg.F to 70Deg.F), 10W-40/50 (-5Deg.F to 95Deg.F), 15W-40/50 (5Deg.F to Above 100Deg.F), 20W-50 (15Deg.F to Above 100Deg.F) for Porsche 928

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Frequently Asked Questions

What type of oil does a 1988 Porsche 928 take?: The 1988 Porsche 928 requires SAE 5W-20 (Below -20Deg.F to 15Deg.F), 5W-30 (-20Deg.F to 30Deg.F),10W-30 (-10Deg.F to 70Deg.F), 10W-40/50 (-5Deg.F to 95Deg.F), 15W-40/50 (5Deg.F to Above 100Deg.F), 20W-50 (15Deg.F to Above 100Deg.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 1988 Porsche 928 need?: The 1988 Porsche 928 takes 2.00 GALS. (7.57 L) of engine oil with the filter replaced.
Can I use synthetic oil in my 1988 Porsche 928?: Yes — synthetic oil that meets the SAE 5W-20 (Below -20Deg.F to 15Deg.F), 5W-30 (-20Deg.F to 30Deg.F),10W-30 (-10Deg.F to 70Deg.F), 10W-40/50 (-5Deg.F to 95Deg.F), 15W-40/50 (5Deg.F to Above 100Deg.F), 20W-50 (15Deg.F to Above 100Deg.F) specification is acceptable and often preferred for better protection and longer change intervals.
What happens if I use the wrong oil in my 1988 Porsche 928?: Using oil that does not meet the SAE 5W-20 (Below -20Deg.F to 15Deg.F), 5W-30 (-20Deg.F to 30Deg.F),10W-30 (-10Deg.F to 70Deg.F), 10W-40/50 (-5Deg.F to 95Deg.F), 15W-40/50 (5Deg.F to Above 100Deg.F), 20W-50 (15Deg.F to Above 100Deg.F) specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.