Whats the deal with additives?
Use an additive (oil, transmission, radiator, fuel) when you have a symptom to correct. For instance, if you suspect you may have water in your fuel tank, use a fuel additive that absorbs water. A small radiator leak may require the use of a radiator stop leak. If your car is old and uses a lot of oil, use an oil additive that helps to control oil consumption. Ask your Lube City Express Oil Change technician for recommendations.