How much oil does a 4.3 L Chevy Blazer take?
The 4.3 L V6 in the Chevy Blazer typically requires about 4.5 quarts of engine oil with a new filter (roughly 4.3 liters). Without the filter, the capacity is about 4.0 quarts (around 3.8 liters).
Key capacity figures
These figures cover the common 4.3 L V6 used in Blazer, S-10, and similar GM trucks from the 1990s through early 2000s. Always verify with your owner’s manual for your exact year and engine code.
Below is a quick capacity reference you can rely on during an oil change.
- With oil filter: 4.5 quarts (approximately 4.3 liters)
- Without oil filter: 4.0 quarts (approximately 3.8 liters)
In practice, you typically add about 4.5 quarts, then start the engine, let it run briefly, turn it off, wait a few minutes, and recheck the dipstick to top off to the proper level as indicated by the marks.
Oil grade and year variations
Oil type and fill amounts can vary by model year and climate. Use the vehicle’s manual or a GM service bulletin for the exact specification about oil grade and any Dexos requirements.
Recommended oil grades (general guidance)
- Most older 4.3 L V6 engines in Blazers/S-series trucks: typically 5W-30 with API SN/SL or newer specifications
- Newer GM practice (where applicable): Dexos1 Gen 2 certified 5W-30; otherwise API SN/SM/SL 5W-30 or 10W-30 depending on climate
- Always confirm with your owner’s manual for the exact specification and viscosity for your year and region
Bottom line: verify the exact oil specification for your vehicle’s year, trim, and engine code to ensure compatibility and optimal performance.
Practical steps for a smooth oil change
To ensure you don’t underfill or overfill, follow these steps during your oil change:
- Warm the engine briefly to expand the oil and improve drainage.
- Place a drain pan underneath and remove the drain plug to drain old oil.
- Remove and replace the oil filter with a new one.
- Install the drain plug and pour in approximately 4.5 quarts of oil.
- Start the engine, run for a minute, turn off, wait a few minutes, then check the dipstick and top up to the full mark if needed.
Following these steps helps ensure you reach the correct oil level without overfilling.
Summary
The 4.3 L V6 in the Chevy Blazer typically uses about 4.5 quarts (4.3 liters) of oil with the filter, or about 4.0 quarts (3.8 liters) without the filter. Always consult the owner’s manual for your exact model year and engine code to confirm oil capacity and the recommended oil viscosity and specification. Regular checks and correct up-front filling help maintain engine health and performance.
What oil does a 4.3 L V6 take?
A 4.3L V6 engine typically requires SAE 5W-30 motor oil, though the specific type (conventional, synthetic blend, or full synthetic) and brand can vary depending on the vehicle's year and your climate. It is recommended to check the owner's manual for the exact specifications and a dexos1 approved oil if applicable, as this is the standard for many modern GM vehicles.
Oil specifications
- Viscosity: SAE 5W-30 is the most common recommendation for year-round use.
- Alternative: In colder climates, SAE 0W-30 can be used, but 5W-30 is generally preferred.
- Type: Synthetic blend or full synthetic oil is often recommended for better performance and protection.
Other considerations
- Capacity: The oil capacity is typically around 4.5 quarts with a filter change. Always check the oil level after refilling to ensure it's correct.
- Oil cap confirmation: The oil cap on your engine will also confirm the correct oil viscosity to use.
- Oil additives: Some older vehicles may benefit from high-mileage additives, but be sure to research the product and its compatibility with your specific engine, according to this Facebook thread.
How much oil does a 4.3 Blazer take?
Capacity: 4.5 quarts (with filter). After refill check oil level.
How many quarts of oil does a V6 Blazer take?
6.0 quarts
Chevy Blazer Oil Capacity
3.6L V6 Engine—6.0 quarts (with filter)
What oil does a 2001 Chevy Blazer 4.3 take?
Mobil 1 ESP Full Synthetic Engine Oil 5W-30 5 Quart.
