Engine Oil

for 1978 Buick Electra 350ci V8 Diesel · RWD

Fluid Type

15W-40 diesel engine oil

Spec: API CD

Capacity

7qt

6.62 L

Drain & Refill

7 qt

6.62 L

Change Interval

3,000 mi

4,827 km

Notes

Oldsmobile 350 diesel; includes filter. Critical to use diesel-rated oil and change frequently due to fuel dilution issues common in these early diesels.

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Other fluid systems on this vehicle

Automatic Transmission

10 qt

Washer Fluid

3 qt

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

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