Idemitsu ATF Type S Automatic Transmission Fluid 5 Quart — Matic J/D/S Compatible, Anti-Shudder & Oxidation-Resistant

Idemitsu ATF Type S is a premium automatic transmission fluid formulated for Nissan/Infiniti Matic-J, Matic-D and Matic-S specifications to deliver smooth gear changes and durable component protection.

Engineered by Idemitsu to meet the precise needs of Nissan and Infiniti automatic transmissions, this 5-quart container (part number 30040101-75000C020) balances friction, oxidation resistance and seal conditioning to maintain consistent shift quality and long service life. The formula emphasizes anti-shudder performance, deposit control, and compatibility with transmission materials to reduce wear and help prevent leaks due to aged seals.

How does Idemitsu ATF Type S improve shifting feel during everyday driving?

The fluid is blended to provide stable frictional properties so shifts are crisp and predictable across a wide temperature range. Drivers notice fewer jolts or hesitation during gear changes because the anti-shudder components maintain consistent clutch engagement.

• Optimized friction modifier for steady engagement and smooth upshifts and downshifts
• Wide-temperature performance to reduce cold-start shift harshness
• Anti-shudder additives that minimize torque converter shudder under load

What protection does this ATF offer against oxidation, deposits, and wear?

Idemitsu Type S contains detergents and antioxidants that slow fluid breakdown and keep valve bodies and clutch packs free of varnish and sludge. Longer fluid life means fewer service intervals and more reliable hydraulic control inside the transmission.

• Superior oxidation resistance to preserve fluid properties over time
• Deposit-control chemistry to prevent varnish buildup on critical parts
• Wear-reducing additives that support gear and clutch longevity

Is this ATF compatible with seals and transmission materials in Nissan/Infiniti vehicles?

Yes — the formulation conditions and maintains seals, reducing the chance of leaks caused by shrinkage, hardening, or cracking over time. Compatibility testing ensures it works with materials originally used by manufacturers specifying Matic-S, Matic-J, or Matic-D.

• Seal-conditioning agents to maintain pliability and reduce leakage risk
• Chemistry matched to OEM specifications for safe use in approved models
• Helps preserve gasket and hose interfaces under thermal cycling

How do I know when to use Idemitsu ATF Type S in my vehicle?

Refer to your vehicle owner’s manual for the required ATF specification; use Type S when the manual lists Matic-S, Matic-J, or Matic-D. If your vehicle formerly used a Nissan/Infiniti OEM ATF with those designations, this Idemitsu product is formulated as a direct-fit replacement.

• Check the owner’s manual or service guide for Matic-S, Matic-J, or Matic-D requirements
• Use the 5-quart container for full services or top-offs as appropriate
• When in doubt, consult a qualified technician to confirm compatibility

Who is this for: Owners and technicians who service Nissan and Infiniti automatic transmissions seeking a high-quality aftermarket fluid that matches OEM Matic-S/J/D requirements. It’s ideal for preventive maintenance, transmission rebuilds, or fluid changes where consistent shift performance, oxidation stability and seal conditioning are priorities.