Hot Shot's Secret Diesel Injector Flush 32 oz — Concentrated Injector Cleaner & Cetane Boost

Hot Shot's Secret Diesel Injector Flush (32 oz) is a concentrated professional-grade fuel system treatment designed to remove internal diesel injector deposits and restore injector balance for smoother starting and improved combustion.

Designed for service technicians and owners who need a rapid, effective clean-up of diesel fuel systems, this 32 oz concentrated formula targets internal diesel injector deposits (IDIDs) and nozzle coking that can cause misfires, hard starts, rough idling and reduced fuel economy. The product is formulated to be compatible with a wide range of diesel engines and fuels, including ULSD, biodiesel blends and renewable diesel, and it includes cetane improvers and lubricity additives to maintain safe operation while cleaning.

How does this injector flush improve engine starting and idle quality?

The flush dissolves and dislodges carbonized deposits on injector nozzles and in internal injector passages that interfere with spray patterns and timing. By restoring more uniform injector balance rates and cleaner nozzle openings, engines regain steadier idling and more reliable cold starts without replacing parts.

• Breaks down nozzle coking that causes uneven spray and misfires
• Restores injector balance rates to reduce rough idle
• Helps resolve trouble codes tied to injection timing and contribution

Will this product work on my fleet’s different diesel systems?

Yes — the formula is formulated for broad compatibility across diesel platforms, from light-duty pickups to heavy equipment. It is safe for use with common rail, direct injection and older mechanical injection systems, and works in various diesel fuels.

• Compatible with common rail, direct injection, and mechanical systems
• Effective in ULSD, biodiesel blends and renewable diesel
• Suitable for vehicles, trucks, tractors and construction equipment

How quickly will I see results and how is it applied?

This concentrated flush is designed to clean an entire fuel system in a single treatment when applied according to service procedures, producing noticeable improvements in a short maintenance window. Application typically occurs during a service flush, and the product’s additives help protect components while the cleaning reaction proceeds.

• Single-treatment concentrate for whole-system flushing
• Reduces maintenance time and can lower downtime costs
• Contains lubricity and cetane-boosting agents for safe treatment

Does using this flush affect emissions equipment or fuel system parts?

The product is formulated to be safe for modern emissions-related components and fuel-system materials when used as directed. Its cleaning action targets injector deposits without harsh solvents that would damage seals or pumps, helping preserve DPF and injector longevity while improving combustion.

• Designed to protect seals and pump components during cleaning
• Helps reduce DPF regen frequency by improving combustion efficiency
• Safe for use when following manufacturer and product instructions

Who is this for? Hot Shot's Secret Diesel Injector Flush (32 oz) is aimed at service professionals, fleet managers and diesel owners who need a fast, potent concentrated cleaner to recover injector performance without immediate component replacement. If you maintain pickups, semi-trucks, agricultural machinery or construction equipment and want a single-treatment flush compatible with a variety of diesel fuels and injection systems, this product is suitable. Always follow equipment manufacturer guidance and Hot Shot’s Secret application instructions for best results.