BG 245 Diesel Fuel System Cleaner — 12 oz bottle, cleans injectors & combustion chambers, restores spray pattern

BG 245 Premium Diesel Fuel System Cleaner dissolves stubborn carbon and varnish throughout the diesel injection system, including deep inside high-pressure injectors and combustion chambers.

Diesel engines are prone to deposit formation as fuel breaks down under heat and pressure. BG 245 is formulated to reach places many additives miss — not only cleaning injector tips but also removing deposits inside injector bodies and combustion chambers. It combines strong deposit solvents with a lubricity agent and a cetane improver to help protect components, reduce emissions, and make starting easier in cold conditions.

How does BG 245 remove deposits inside high-pressure common rail injectors?

BG 245 uses targeted solvents that penetrate and dissolve hardened carbon and varnish created by fuel breakdown at elevated temperatures and pressures. Because it treats the entire fuel path, the formula can reach internal injector surfaces and combustion chamber residues that typical tip-only cleaners leave behind.

• Dissolves carbon and varnish from injector interiors
• Works in high temperature, high-pressure HPCR systems
• Restores spray patterns and injector response

What measurable benefits can I expect after using this cleaner?

Regular use of BG 245 can lead to smoother idling, reduced visible exhaust emissions, and improved cold-start performance due to the included cetane improver and lubricity agent. Effects depend on deposit severity, engine type, and maintenance history, but many users notice better throttle response and steadier operation following a full treatment.

• Improved cold starts and easier cranking
• Lowered exhaust smoke and deposit-related emissions
• Enhanced idle smoothness and power delivery

How do I use BG 245 safely and effectively?

BG 245 is added directly to the fuel tank according to the product dosing instructions, so it mixes with fuel and circulates through the entire system during normal operation. Follow the recommended dose for your tank size, run the engine to allow the cleaner to pass through injectors and combustion chambers, and consider repeating if deposits are heavy.

• Add the correct dose to a nearly full fuel tank for best dispersion
• Operate the vehicle under normal driving conditions to circulate the formula
• Repeat treatment if heavy fouling is suspected or after extended storage

Will BG 245 work with all diesel engines and fuels?

BG 245 is designed for modern diesel systems, including high-pressure common rail and older mechanical injection setups. It is compatible with typical diesel fuels but always check manufacturer recommendations before use, especially when additives are used alongside biodiesel blends or specialty fuels.

• Effective in HPCR direct-injection and older diesel engines
• Compatible with standard diesel fuels; verify with blends or additives
• Safe for systems requiring improved fuel lubricity

Who is this for: BG 245 Premium Diesel Fuel System Cleaner is aimed at vehicle owners, fleet managers, and diesel service technicians who want to remove deep injector and combustion-chamber deposits that impair performance. It's particularly useful for machines showing heavy smoke, rough idle, sluggish throttle response, or difficult cold starts, and for preventive maintenance in high-pressure, high-temperature diesel engines.