If you’re the proud owner of a GMC Sierra 1500, then you know that you need to take care of your vehicle in order to keep it running smoothly. One important part of taking care of your truck is making sure that you use the best transmission fluid for GMC Sierra 1500. Not all fluids are created equal – some are better suited for certain vehicles than others.
The best solution is to stick with OEM recommendations. There are a few different fluids on the market that meet GMC’s standards for Sierra 1500. Oil type and Engine Oil Capacity are provided below.
2019 2020 2021 2022 GMC Sierra 1500 Transmission Fluid Type and Transmission Fluid Capacity
| Transmission type | Fluid capacity | Fluid type |
| 10-speed 10L80 Automatic Transmission | Total Fill 12.6 quarts (11.9 liters) Initial Fill 8.1 quarts (7.7 liters) | ULV |
| 10-speed with cooler 10L80 Automatic Transmission | Total Fill 12 quarts (11.4 liters) Initial Fill 8.1 quarts (7.7 liters) | ULV |
| 8-speed with cooler 8L90 Automatic Transmission | Total Fill 11.4 quarts (10.8 liters) Initial Fill 7.4 quarts (7 liters) | SL150 |
| 8-speed 8L90 Automatic Transmission | 6-speed Heavy Duty 6L80 Automatic Transmission | SL150 |
| 6-speed Light Duty 6L80 Automatic Transmission | Total Fill 12.4 quarts (11.7 liters) Initial Fill 6 quarts (5.7 liters) | AF6 |
| 6 speed Light Duty 6L80 Automatic Transmission | Total Fill 12.2 quarts (11.5 liters) Initial Fill 6 quarts (5.7 liters) | AF6 |
2014 2015 2016 2017 2018 GMC Sierra 1500 Transmission Fluid Type and Transmission Fluid Capacity
| Transmission type | Fluid capacity | Fluid type |
| 6-speed LD 6L80 Automatic Transmission | Total Fill 12.4 quarts (11.7 liters) Initial Fill 6 quarts (5.7 liters) | AF6 |
| 6 speed LD 6L80 Automatic Transmission | Total Fill 12.2 quarts (11.5 liters) Initial Fill 6 quarts (5.7 liters) | AF6 |
| 8 speed 8L90 Automatic Transmission | Total Fill 11.4 quarts (10.8 liters) Initial Fill 7.4 quarts (7 liters) | SL150 |
2007 2008 2009 2010 2011 2012 2013 GMC Sierra 1500 Transmission Fluid Type and Transmission Fluid Capacity
| Transmission type | Fluid capacity | Fluid type |
| 6-speed HD 6L80 Automatic Transmission | Total Fill 12.4 quarts (11.7 liters) Initial Fill 6 quarts (5.7 liters) | AF6 |
| 6.0L LZ1 and LFA 6-speed 2ML70 Automatic Transmission | Total Fill 13 quarts (12.3 liters) Initial Fill 11.5 quarts (10.9 liters) | AF6 |
| 4-speed 4L60-E Automatic Transmission | Total Fill 11.2 quarts (10.6 liters) Initial Fill 5 quarts (4.7 liters) | AF6 |
| 4-speed 4L70-E Automatic Transmission | Total Fill 11.2 quarts (10.6 liters) Initial Fill 5 quarts (4.7 liters) | AF6 |
1999 2000 2001 2002 2003 2004 2005 2006 GMC Sierra 1500 Transmission Fluid Type and Transmission Fluid Capacity
| Transmission type | Fluid capacity | Fluid type |
| 5-speed NV3500/MG5 Manual Transmission | 4.2 pints (2 liters) | GLS31 |
| 4-speed 4L60-E Automatic Transmission | Total Fill 11.2 quarts (10.6 liters) Initial Fill 5 quarts (4.7 liters) | AF6 |
| 4-speed 4L65-E Automatic Transmission | Total Fill 11.2 quarts (10.6 liters) Initial Fill 5 quarts (4.7 liters) | AF6 |
| NV4500 Manual Transmission | 7.8 pints (3.7 liters) | GL-4 75W-85 GM 12346190 |
| 4-speed 4L80-E Automatic Transmission | Total Fill 13.5 quarts (12.8 liters) Initial Fill 7.7 quarts (7.3 liters) | AF6 |
There are a few things to keep in mind when choosing the best transmission fluid for GMC Sierra 1500. First, you need to consider the type of transmission that your truck has. There are two types of transmissions – automatic and manual. Each type of transmission requires a different type of fluid, so it’s important to know which one you have before making a purchase. Second, you need to think about the climate in which you live. If you live in a cold climate, then you’ll need a different type of fluid than someone who lives in a hot climate.
Dexron VI Automatic Transmission Fluid: This is the best transmission fluid for GMC Sierra 1500 according to the automaker. It should be used in all 2006 and later model year vehicles equipped with an automatic transmission. The Engine Oil Capacity for this particular fluid is six quarts.
Mercon V Automatic Transmission Fluid: This is another great option for GMC Sierra 1500 owners. It can be used in 2004 and 2005 model year trucks equipped with an automatic transmission. The Engine Oil Capacity for this fluid is also six quarts.
