How much transmission fluid does a 2015 Silverado take?
Approximately 13 quarts (about 12.3 liters) of Dexron VI automatic transmission fluid is needed for a complete system fill on most 2015 Silverado models with the common 6L80E automatic transmission. The exact amount can vary depending on the service method and whether fluid in the torque converter is drained or replaced.
Transmission options in the 2015 Silverado
In the 2015 Silverado lineup, the most widely used automatic transmission for the 1500 series is the 6L80E. Some heavier-duty configurations and trims may use a different six-speed unit, such as the 6L90, but Dexron VI is the standard fluid across these transmissions. Always verify the exact transmission type for your vehicle using the VIN or the owner's manual.
What is the total fluid capacity and how much should you replace?
The figures below reflect typical capacities for the 6L80E family, with variations possible by vehicle configuration and service method.
Before listing the figures, note that service approaches can affect the exact quantity you replace during maintenance.
- Total system capacity (including the torque converter): about 13 quarts (approximately 12.3 liters).
- Pan capacity (fluid in the pan when drained): generally in the 6–9 quart range, depending on pan design and whether the filter is included.
- Drain-and-fill (pan drop only, no converter drain): typically replaces roughly 7–9 quarts of fluid.
- Full fluid exchange/flush (using a machine or converter drain): about 12–13 quarts (nearly the entire system).
These numbers offer a practical framework for planning maintenance. For the exact requirement of your vehicle, consult the GM service manual or your dealership, and perform a proper level check after service.
Fluid type and service notes
Use Dexron VI automatic transmission fluid, as recommended by GM for the 6L80E/6L90 transmissions. When servicing, start with a warmed engine, shift through each gear, and end in Park to check the level. Add fluid gradually and re-check to ensure the level is at the full mark on the dipstick when the transmission is at operating temperature.
Summary
For a 2015 Silverado equipped with the common 6L80E automatic transmission, plan on about 13 quarts (12.3 liters) of ATF for a complete system fill. The actual amount you need depends on whether you’re performing a pan drain or a full flush, and on whether the torque converter fluid is drained. Always use Dexron VI and follow GM’s service guidance for your exact VIN. If in doubt, consult a dealership or a trusted repair manual.
