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Can Fuel Additive and Three-Way Catalytic Cleaner Be Added at the Same Time?

2 Answers

VanJustin

09/09/25 3:06am

Fuel additives and three-way catalytic cleaners should not be used together. Specific details are as follows: Fuel additives: Automotive fuel additives can improve the purity of the fuel, thus providing excellent benefits to the vehicle's fuel system. On the other hand, three-way catalytic cleaners only offer partial effectiveness and are not as effective as fuel additives. Therefore, the two should not be mixed. Three-way catalytic cleaner: The method of using a three-way catalytic cleaner is the same as adding a regular fuel additive—simply pour it into the vehicle's fuel tank to mix with the fuel. Once the vehicle is started, the cleaner will enter the combustion chamber along with the gasoline, performing the corresponding cleaning work on the three-way catalytic converter.

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DelDaniella

09/20/25 8:00am

I've been driving for twenty years and have encountered similar issues. Fuel system cleaners are primarily used to remove carbon deposits from the fuel system and are directly added to the fuel tank; catalytic converter cleaners specifically target carbon buildup and deposits in the catalytic converter, typically added through the intake or fuel line. Whether they can be used simultaneously depends on the product and the vehicle's condition. If your car is a newer model and the product manual states compatibility, it might be fine—some brands are designed to work together. However, I recommend avoiding simultaneous use, as excessive cleaners could cause chemical conflicts, leading to engine shaking, unstable power, or triggering the emission warning light. It's safer to first add the fuel system cleaner, drive a few hundred kilometers to clean the injectors, and then add the catalytic converter cleaner once the system stabilizes. Catalytic converter cleaners show noticeable effects when the converter is clogged, but overuse wastes money and harms the system. Regular maintenance keeps your car trouble-free; check the exhaust quality every 5,000 kilometers.

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How to Buy Parallel Imported Cars?

Parallel imported cars do not come with the necessary documents and invoices. If possible, it is advisable to purchase a vehicle with complete documentation and invoices issued on the same day. For non-professionals, completing all procedures at once is the most convenient option. If the documents and invoices cannot be obtained on the same day, make sure to include the delivery time of these documents and invoices in the contract to avoid any issues. When picking up the car at the port, always go through a reputable company and avoid being lured by individuals offering low prices. Below is some relevant information about parallel imports: 1. The full name of parallel imported cars is parallel trade imported vehicles, also known as parallel trade cars. These are vehicles purchased by traders from overseas markets and introduced into the Chinese market for sale without authorization from the brand manufacturer. 2. Parallel imported cars are not authorized by the manufacturer. Since traders bring these cars into the Chinese market on their own, parallel imported cars cannot enjoy the manufacturer's warranty, after-sales service, maintenance, and other rights after entering China.

How to Pay Vehicle Traffic Violation Fines?

Vehicle traffic violation fines should be paid at the bank specified on the ticket. For traffic violations recorded on highways, it is best to handle them at the highway traffic police station. Below is an introduction to traffic violations: 1. On-the-spot traffic fines refer to the fines issued by traffic police on the spot when a vehicle driver violates traffic regulations. If you receive a parking ticket, this is considered an on-the-spot violation, and the owner can directly go to the bank specified on the ticket to pay the fine. 2. If the violation is captured by an electronic eye or documented by traffic police, such as running a red light or speeding, these are non-on-the-spot violations and only need to be handled within one scoring cycle.

What is the actual fuel consumption of the Jianghuai Ruifeng 2.0?

The Jianghuai Ruifeng model equipped with a 2.0-liter naturally aspirated engine has a fuel consumption of 11 liters per 100 kilometers. Below is an introduction to fuel consumption per 100 kilometers: 1. Fuel consumption per 100 kilometers is an indicator for vehicles. Standardized fuel consumption is a statistical norm. The slower the vehicle travels within the economical speed range, the higher the fuel consumption per 100 kilometers. Since most vehicles approach their economical speed at 90 km/h, the theoretical fuel consumption announced by manufacturers is usually the fuel consumption per 100 kilometers at 90 km/h. 2. If the engine speed is maintained within the same safe range, the hourly fuel consumption remains the same regardless of the vehicle's speed. For calculating fuel consumption on highways or in engineering transportation, the first two norms are not suitable, and calculating by hourly fuel consumption is more accurate.

What is the purpose of the newly installed gantry on the highway?

It is part of the nationwide implementation of a segmented toll collection system using ETC gantries on highways. The ETC gantry is equipped with devices to identify vehicle information. Through two-way microwave communication between the electronic license plate installed on the vehicle's windshield and the microwave antenna on the ETC lane gantry at the toll station, big data processing is utilized. This allows vehicles to pay tolls without stopping when passing through highway toll stations, with payment deducted after passage. Below is the toll collection method via ETC gantries: 1. The biggest advantage of highway gantries is enabling non-stop toll collection. Vehicles are automatically charged when passing under the gantry, ensuring more accurate tolling. 2. Toll amounts are rounded to the nearest multiple of 5, currently using "rounding" to the nearest "yuan." For ETC card users enjoying a 5% discount, amounts are rounded to the nearest "fen."

What are the driving tips for beginners with manual transmission?

Tips for beginners driving a manual transmission are: 1. Lift the clutch until you feel the engagement point, which is when the car is about to move, also known as the half-clutch state, then stop lifting and hold it steady, then slowly release the clutch, and the car will start smoothly. 2. Coordination between the clutch and the accelerator, which means lifting the clutch to the half-clutch state and holding it steady, then slightly pressing the accelerator while slowly releasing the clutch, allowing the car to start smoothly. Precautions for beginners: 1. During the first half of lifting the clutch, which is the free travel stage of the clutch, the lifting speed can be faster. 2. At the engagement point, which is the half-clutch state, be sure to pause for a moment. 3. During the process from half-clutch to full clutch, the speed of releasing the clutch should be slower and steadier.

Why Won't My Car Start?

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