What kind of oil does a 1995 Suburban take?
The answer depends on the powertrain. For most 1995 Suburban models with the common 5.7L V8, use 5W-30 or 10W-30 conventional motor oil. If your Suburban uses the 6.5L Turbo Diesel, use a diesel-grade oil such as SAE 15W-40. Always confirm the exact specification in your owner’s manual and match the oil to your climate and driving conditions.
This article explains the differences between gasoline and diesel Suburbans from 1995, and provides practical guidance on viscosity, API ratings, and oil capacity to help you choose the right oil for your truck.
Engine oil options by engine type
Below are the typical oil recommendations for the two main engine families in the 1995 Suburban.
Gasoline engines (5.0L/5.7L): Use conventional motor oil with viscosity 5W-30 or 10W-30, depending on climate. In colder climates, 5W-30 improves cold-start protection; in warmer climates, 10W-30 is common. Look for API service categories that were current at the time (a modern equivalent such as SJ/SL or newer is acceptable). Typical oil capacity with filter is roughly 5–6 quarts for these engines.
Diesel engine (6.5L Turbo Diesel): Use a diesel-rated motor oil, typically SAE 15W-40, that meets the appropriate diesel API service category for the vehicle’s year. These engines usually require a larger fill—roughly 7–8 quarts with a filter—depending on the exact model and oil pan configuration.
Note: Always verify the exact capacity and specification from the owner's manual or under-hood data sticker, since production changes or regional options can affect the numbers.
Additional tips and capacity
Oil capacity by engine
Estimated capacities are:
- Gasoline engines (5.0L/5.7L): approximately 5–6 quarts with filter.
- Diesel engine (6.5L Turbo Diesel): approximately 7–8 quarts with filter.
After an oil change, recheck the level on the dipstick and fill to the recommended mark. If you’re using synthetic oil, you may be able to extend drain intervals, but follow GM guidance and the oil’s viscosity breakdown prevention guidelines.
Summary
Bottom line: For most 1995 Suburbans with the common gas V8, use 5W-30 or 10W-30 conventional oil. For the 6.5L Turbo Diesel, use a diesel-grade oil such as 15W-40. Always consult the owner’s manual for exact specifications and capacities, and tailor your choice to climate and driving conditions. Regular oil changes with the correct API grade help keep an aging GM Suburban running smoothly.
