Is It Necessary to Drive on the Highway After Adding Fuel Additive?

[Ashlyn]

It is not necessary to drive on the highway immediately after adding fuel additive. Letting the additive sit for a few days to mix more evenly with the gasoline is sufficient, and you can drive on the highway when the opportunity arises later. For new vehicles with less than 20,000 kilometers on the odometer, adding fuel additive is unnecessary. For vehicles exceeding 20,000 kilometers, it should be added as needed, typically one small bottle per tank of fuel. The precautions for using fuel additive are as follows: Increased carbon deposits in the combustion chamber: Long-term use of fuel additive can be harmful to the engine. Excessive use can increase carbon deposits in the combustion chamber, and if overused for an extended period, it may even cause engine knocking, detonation, and worsen vehicle exhaust emissions. Driver's driving habits: Cars frequently driven at low speeds in urban areas with frequent stops and starts are prone to engine carbon buildup. If a car often drives on highways, carbon deposits are less likely to form, and even if the mileage exceeds 200,000 kilometers, fuel additive may not be necessary. Many drivers tend to accelerate and brake aggressively, which increases fuel consumption, and using fuel additive cannot compensate for these poor driving habits.