1. Auto parts stores: You can find coolant tanks at most auto parts stores, such as AutoZone, Pep Boys, and O'Reilly Auto Parts.
2. Online retailers: You can also purchase coolant tanks online from retailers such as Amazon, eBay, and Walmart.
3. Dealerships: You can also contact your local Oldsmobile dealership to see if they have coolant tanks in stock.
When purchasing a coolant tank, be sure to select one that is compatible with your specific vehicle model and year. You should also consider the material of the tank (such as plastic or metal) and the size (capacity in ounces or liters).
