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The 2007 Chevy Express requires Devron ViAutomatic transmission fluid. It can hold up to 11.2 US quarts in total capacity and 7 quarts for the service refill. If you have a manual transmission, the capacity will be 5.8 quarts. To keep your transmission operating smoothly, it is recommended to service and flush the automatic transmission fluid and filter every 60,000 miles. If you frequently tow heavy loads like trailers with your truck, it is advised to service it every 45,000 miles. Regular maintenance is crucial to prevent gear slippage and other transmission issues. Using faulty transmission fluid can lead to inadequate lubrication, causing gears to grind against each other, resulting in metal parts and debris contaminating the fluid and causing further damage.
The specific transmission fluid required for this car is Valvoline synthetic transmission fluid, sold in 1-quart bottles.