How much oil does a ls7 take?
The LS7 requires about eight quarts of oil (roughly 7.6 liters) when you include the oil filter. This is the typical full capacity for a standard oil change on this engine.
Official capacity and what it covers
The LS7 uses a wet-sump lubrication system. The commonly documented oil capacity is 8 quarts (7.6 liters) with the filter installed, which is the amount recommended to fill the engine to the proper level after a complete drain and filter change.
Oil type and specifications
GM generally recommends a high-quality full-synthetic oil that meets the current GM specification for your model year. For most LS7 applications, a 5W-30 synthetic oil is typical, but always verify the exact viscosity and specification (Dexos1 or equivalent) in your owner’s manual or with a dealer for your year.
Practical notes for filling and topping up
When performing an oil change, the exact amount needed can vary slightly depending on whether you replace the filter and how much oil remains in the engine, as well as temperature and climate. The following factors commonly influence the final fill:
- Replacing the oil filter: A new filter displaces oil, nudging the total toward the 8-quart mark.
- Oil drained vs. residual oil: Some oil remains in passages and the filter housing, affecting the final amount you add.
- Oil temperature: Warm oil expands; check the level after the engine has cooled for a few minutes to ambient temperature.
- Model-year or minor variations: While 8 quarts is typical, always confirm with the manual for your exact year and configuration.
Conclusion: Plan to start with about 8 quarts (7.6 liters) of oil when performing a standard oil change with a new filter, then top up in small increments until the dipstick shows the correct level.
Summary
In short, the LS7 takes approximately 8 quarts of oil (about 7.6 liters) including the filter. Always confirm the exact capacity for your vehicle’s year and configuration in the owner's manual or with a GM dealer.
