SUBJECT:
Fuel System Cleaner Recommendation and Fuel Quality information
This bulletin provides information about “TECHRON Concentrate Plus Fuel System Cleaner” that is now Kia
approved and recommended (refer the vehicle owner to the maintenance section of owner’s manual) for complete fuel system cleaning during routine service intervals and preventative maintenance. A 12-ounce bottle will safely treat up to 12 gallons of gasoline, and can be used in all gasoline engine types, including MPI or GDI systems. “TECHRON Concentrate Plus Fuel System Cleaner” should be used at every standard oil change interval (7500) miles, if TOP TIER* Detergent Gasoline is not available. “TECHRON Concentrate Plus Fuel System Cleaner” effectively cleans fuel injectors, intake valves, combustion chambers, and protects critical fuel system components from corrosion and sulfur content in fuel. This product will not harm emission control systems and will not leave behind harmful combustion chamber deposits.
Gasoline Quality Information:
Kia recommends the use of high-quality gasoline, including gasoline advertised as “TOP TIER* Detergent Gasoline,” as well as periodic use of an approved “Fuel System Cleaner” if TOP TIER* Detergent Gasoline is not readily available. This is especially important for vehicles equipped with gasoline direct injection (GDI) engines with advanced fuel delivery systems.
If use of poor quality gasoline is suspected, customer should be advised to refuel at a different fueling station or switch to a TOP TIER* brand of gasoline. Poor quality gasoline may exhibit one or more of the following characteristics:
- Abnormal odor and/or color
- Water in the fuel
- Sediments and suspended foreign substances/contaminates
- Cloudy appearance and (after settling) showing signs of separation
Warranty Information:
The use of “TECHRON Concentrate Plus Fuel System Cleaner” is a Customer Pay Item during the time of routine service / maintenance and the cost is not reimbursable under warranty.
*For latest information, plus a list of retailers of “TOP TIER Detergent Gasoline,” please visit the official website: www.toptiergas.com.
- Removes Carbon Buildup Fast: Breaks down stubborn, baked‑on carbon deposits on intake valves and turbo components, restoring airflow and improving engine performance.
- Boosts Power & Efficiency: Regular use increases power and torque, improves MPG, and reduces rough idle, hesitation, and hard starts.
- Proven High‑Strength Formula: Delivers concentrated cleaning agents directly to intake valves—up to 150× stronger than premium fuel additives—and removes up to 46% of deposits within the first hour.
- No Engine Teardown Required: Safe for GDI and PFI engines; simply spray through the air intake system for professional‑grade cleaning without disassembly.
- Reduces Emissions & Improves Drivability: Helps restore proper combustion, reduce harmful emissions, and smooth out idle and acceleration for a cleaner‑running engine.
- Proven to clean intake valves on GDI engines and turbo systems with advanced Cozol technology
- Increases horsepower and improves air/fuel ratio and MPG by cleaning mass air flow sensors
- Easily installed CRC cleaner through the air intake system to remove deposits
- CRC GDI cleaner dissolves baked-on carbon deposits for smoother idle
- Mass air flow sensor cleaner dries in seconds and is plastic safe
- Gumout Professional Formula Mass Air Flow Sensor Cleaner Safely Cleans Gas and Diesel MAF Sensors Restoring Sensor Functionality and Engine Performance.
- Deep Cleans GDI (Gasoline Direct Injection) / PFI (Port Fuel Injection) Intake Valves, As Well As, The Throttle Body, Intake Ports, Fuel Injectors and Combustion Chambers
Last update on 2026-05-24 / Affiliate links / Images from Amazon Product Advertising API
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