BG ATC Plus automatic transmission additive – 8/9/10‑speed safe, seal conditioning & deposit control

BG ATC Plus is a professional-grade automatic transmission additive formulated to prevent deposit buildup, condition seals and improve fluid stability in modern multi-speed transmissions.

As automakers fit 8-, 9- and 10-speed gearboxes into smaller, more efficient engines, transmission components are exposed to higher temperatures and greater stress. That environment accelerates automatic transmission fluid (ATF) breakdown and encourages sludge, varnish and deposit formation that can lead to slipping, erratic shifts and premature wear. BG ATC Plus is designed to be used with ATF—especially BG Universal Synthetic ATF—to extend fluid life, reduce deposit formation and help maintain reliable shifting.

How does BG ATC Plus reduce transmission deposits?

BG ATC Plus contains modern additive chemistry that resists oxidation and neutralizes conditions that form sludge and varnish. By stabilizing the fluid, it slows the chemical reactions that produce sticky deposits on valves, clutches and friction surfaces, helping the transmission maintain predictable operation.

• Improves fluid oxidation stability to slow chemical degradation.
• Retards formation of sludge and varnish on internal components.
• Helps prevent foaming that can reduce hydraulic control.

Can this product correct shifting problems like shudder or slipping?

When used as part of a proper BG transmission service and combined with quality synthetic ATF, ATC Plus can reduce or correct shudder and many shifting inconsistencies caused by fluid breakdown and deposits. It conditions the hydraulic environment and helps restore smoother clutch engagement without mechanical overhaul in many cases.

• Helps control transmission shudder by improving fluid film properties.
• Reduces erratic shifting linked to contaminated or oxidized fluid.
• Supports consistent hydraulic pressure for reliable gear changes.

Will BG ATC Plus protect seals and prevent leaks?

BG ATC Plus contains seal-conditioning agents that soften and restore pliability to hardened seals and gaskets. Proper seal conditioning helps reduce external leakage and maintains proper internal sealing for hydraulic circuits, which supports performance and reduces fluid loss.

• Conditions hardened seals to restore flexibility and reduce leaks.
• Helps maintain proper internal pressures by improving seal integrity.
• Works as part of routine service to extend transmission life expectancy.

How should BG ATC Plus be used during service?

This product is intended for professional installation as part of a BG Transmission Service and is designed to be mixed with ATF. For best results pair it with BG Universal Synthetic ATF and follow BG service procedures to flush or replace fluid as required by condition and mileage.

• Use with BG Universal Synthetic ATF for optimal compatibility.
• Installed during a professional transmission service or fluid change.
• Follow manufacturer and BG guidelines for dose and procedure.

Who is this for: BG ATC Plus is aimed at professional technicians, repair shops and vehicle owners who want to protect modern multi-speed automatic transmissions from heat-related fluid breakdown and deposit buildup. It is especially useful for higher-mileage vehicles showing signs of shudder, inconsistent shifting, or early seal hardening, and for preventive service on newer transmissions to prolong fluid and component life. Note: read safety and regulatory information before use; some components are subject to California Proposition 65 warnings.