Idemitsu - 30040092-75000C020 ATF Type M (M3/M5) Automatic

Idemitsu ATF Type M (M3/M5) is a purpose-formulated automatic transmission fluid in a 1-quart size designed to deliver smooth shifting and long-lasting protection for compatible Ford and Mazda gearboxes.

This Idemitsu formulation meets the Type M (M3/M5) specification used by many Ford and Mazda automatic transmissions. It combines engineered friction behavior for reliable shift feel with high thermal and oxidative stability to resist breakdown under heat and extended use. The fluid also helps keep internal components clean while protecting gear and bearing surfaces, and it conditions seals to reduce leak risk.

What makes this ATF right for Ford and Mazda automatics?

The fluid is blended to match the friction and viscosity characteristics required by Type M (M3/M5) applications, supporting correct clutch engagement and gearbox performance. Its composition helps preserve original shift timing and reduces shudder in compatible transmissions.

• Formulated to Type M (M3/M5) specifications for Ford and Mazda vehicles
• Optimized friction for consistent engagement and shift feel
• Helps prevent shudder and rough shifting in approved transmissions

How does Idemitsu ATF protect the transmission internally?

This ATF uses advanced additives to minimize wear on gears and bearings while resisting sludge and varnish buildup. It maintains fluid integrity at high operating temperatures so protective performance endures between service intervals.

• Anti-wear chemistry shields gear teeth and roller surfaces
• High resistance to oxidation extends fluid life and protection
• Cleaner formulations reduce deposit formation inside the gearbox

Will this fluid affect seals and leaks?

Idemitsu ATF Type M is compatible with common transmission seal materials and includes conditioning agents to help maintain seal flexibility. That lowers the chance of shrinkage or hardening that can lead to leaks, especially in older units.

• Seal-compatible additives preserve rubber and elastomer condition
• Reduces risk of leak-causing shrinkage or cracks
• Suitable for transmissions where seal conditioning is important

How do I know when to use a 1‑quart bottle?

The 1-quart container is ideal for top-ups, small drain-and-fill services, or for keeping a correct-match fluid on hand for emergencies. For full fluid changes or transmissions with large capacities, multiple quarts or a professional service may be required.

• Perfect for small top-ups and spot repairs
• Handy for mechanics and DIYers who need exact Type M fluid
• Store a bottle in the garage for emergency additions

Who is this for: Drivers and technicians who maintain Ford and Mazda vehicles requiring ATF Type M (M3/M5) will benefit from this Idemitsu 1-quart fluid. It suits owners who want a transmission fluid that preserves shift quality, protects internal components, conditions seals, and resists thermal and oxidative breakdown between services. Choose this bottle when a compatible, high-stability ATF is needed for top-ups, small jobs, or to keep a correct-spec supply on hand.

Key features at a glance:

• Precisely engineered frictional characteristics for smooth shifting and anti-shudder performance
• High resistance to oxidation and thermal breakdown for extended fluid life
• Cleaning action to help prevent sludge and varnish formation
• Advanced anti-wear protection for gears and bearings
• Seal compatibility and conditioning to reduce leak risk
• Flash point: 174°C