Engine Oil

for 1955 Porsche 356 1.5L H4 · RWD

Fluid Type

20W-50

Spec: API SG or higher

Capacity

5.3qt

5.01 L

Drain & Refill

5.3 qt

5.01 L

Change Interval

3,000 mi

4,827 km

Notes

Type 546/2 1.5L engine (55-70hp variants). Use high-zinc content oil (ZDDP) for flat tappet cam protection. Some use 15W-40 or 10W-40 in cooler climates.

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Other fluid systems on this vehicle

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.

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