Chevron Techron D Concentrate Diesel Fuel System Cleaner — 20 oz. Pack of 6, Injector Deposit Removal & Cetane Boost

Chevron Techron D Concentrate is a high-performance diesel fuel system cleaner in a 20 oz bottle that treats up to 35 gallons, formulated to remove injector deposits and improve combustion across all diesel engines.

Chevron's Techron D Concentrate is engineered as a one-tank cleanup solution for diesel fuel systems, compatible with older engines and modern common-rail designs. Its patented detergents and additives target deposits from tank to injectors, working with ultra-low-sulfur diesel and biodiesel blends. Each 20 oz bottle treats up to 35 gallons, and this listing includes a pack of six for multiple treatments or fleet maintenance.

How does Techron D Concentrate remove deposits and where in the fuel system does it work?

Techron D uses concentrated detergents to dissolve and dislodge carbon and varnish buildup on injector tips, intake valves, and other fuel-system components. Regular use clears existing deposits and reduces future accumulation, keeping fuel pathways cleaner for more consistent spray and combustion.

• Targets injector deposits and internal diesel injector deposits (IDROID)
• Cleans fuel lines, pump components, and injector tips
• Formulated for both older and latest-generation diesel systems

Will this product improve starting, drivability, and emissions?

By restoring proper fuel spray patterns and helping recover cetane performance, Techron D can improve cold starting and throttle response without altering engine controls. Cleaner injectors promote more complete combustion, which can reduce smoke and rough idling when used as directed.

• Helps restore cetane boost for more reliable ignition
• May reduce visible smoke and hesitations caused by fouled injectors
• Improves engine responsiveness and steady idle in many applications

How often should I use a 20 oz bottle and what fuels is it compatible with?

A single 20 oz bottle treats up to 35 gallons of diesel, and Chevron recommends treatment every 3,000 miles or at each oil change for preventive care. The formula is safe for ultra-low-sulfur diesel, biodiesel, and common biodiesel blends, making it suitable for a wide range of diesel vehicles and equipment.

• Treats up to 35 gallons per 20 oz bottle
• Safe for ULSD, biodiesel, and biodiesel blends
• Recommended interval: every 3,000 miles or at oil change

Is Techron D Concentrate safe for modern fuel systems and injectors?

Techron D is formulated to be compatible with modern diesel technologies, including high-pressure common-rail systems and turbocharged engines. When used as directed, it helps prevent injector sticking and failure while supporting overall fuel-system health.

• Designed for common-rail and older diesel engines
• Helps prevent injector sticking with regular treatment
• Non-corrosive to fuel system materials when used per instructions

Who is this for: Chevron Techron D Concentrate is intended for diesel vehicle and equipment owners who want a concentrated, professional-grade cleaner for routine maintenance or to address injector and combustion issues. It's suitable for individual drivers, fleet managers, mechanics, and anyone using biodiesel blends who needs reliable deposit control and improved engine performance across a variety of diesel platforms.