Many auto shops will add the phrase "top off your fluids" onto package deals like they're doing you a huge service. In reality, that "top-off" is probably nothing bout a few ounces that are costing them about 20 cents. That top-off is probably adding $5-10 to your total payment, an amount that could buy you an entire bottle of said fluids by simply going to Autozone and picking it up yourself.


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