The 2008 GMC Sierra with the 5.3L V8 engine useS6 quarts of SAE 5W-30 engine oil. When You need to change it GMC recommends that You use full synthetic oil. There are two major types of oil that can be found on the market today, conventional and synthetic. Conventional is an older style oil that is made from petroleum, and synthetic is engineered in a lab to provide better protection and longer life. This means You will only need to change synthetic every 7,500 miles compared to conventional at every 3,500 to 5,000 miles. You should always check Your oil regularly to make sure that it is free from signs of burning or debris in the engine.
Sonia F.
August 29, 2019
The 2008 GMC Sierra 4.3L V6 engine oil capacity is 4.3 liters (4.5 US Quarts). The 2008 GMC Sierra 4.8L V8; 5.3L V8; 6.0L V8 engines oil capacity 5.7 liters (6.0 US Quarts).
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