Lobby : Performance Tuning : Idemitsu Rotary Lubricants
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IDEMITSU Racing Rotary Lubricants / Call 704-933-6222 to order yours today!

As the largest Japanese lubricant manufacturer, Idemitsu Kosan Co., Ltd. has supplied Japan's lubricant needs since 1911. With over 40% market share of Japanese automotive OEM (Original Equipment Manufacturers) engine oil and lubricant supply, Idemitsu has the knowledge, experience, and technical expertise to design engine oils and other lubricants to specifically meet the unique requirements of Japanese makes and models of automobiles. This expertise was exhibited as Idemitsu developed the engine oil for the 1991 LeMans winning Mazda 787B! This was a crowning moment for Mazda, Rotary Engines, and Idemitsu alike.

After supplying to OEM's in the United States for over 20 years, Idemitsu has introduced its quality and brand to the U.S. aftermarket by launching three new rotary engine oils in July, 2004: Synthetic Rotary Engine Oil 10W-30, 20W-50, and Synthetic Blend Rotary Premix oil. Benefits of these products include extended bearing, apex seal, and turbocharger life.

1991 LeMans

As Volker Weidler, Johnny Herbert, and Bertrand Gachot, drivers of Mazdaspeed Co Ltd's Mazda 787B, awaited the start of the 1991 24 Hour LeMans race, Idemitsu engineers were standing by, arguably as nervous as the drivers. Idemitsu had spent years developing the technology behind the engine oil used in the 787B and were hoping for a problem free fast race by the Mazdaspeed team.

250,000 people gathered on June 22, 1991 to watch the historic 24 Hour LeMans race, and 250,000 people weren't disappointed. They were witness to the first rotary engine driven winner in the history of LeMans. Weidler, Herbert, Gachot, and the Idemitsu engineers could now relax and celebrate the win…

The 4708cc 787B finished the race by completing 2 (362 in total) more laps than the closest competitor. The 787B covered a total of 4,923 kilometers (3,059 miles) at an average speed of 205 km/hr (127 mi/hr). For those few who doubted the rotary engine's capability, no doubt could exist any longer.

idemitsu 10W-30 synthetic

idemitsu 20W-50 synthetic

Idemitsu Racing Rotary Engine Oil 10W-30 and 20W-50
(Full Synthetic) $7.50 a quart / $84.95 a case of 12qts. (better value!)

  • Formulated Specifically For High Performance Rotary Engines
  • Contains Special Molybdenum Agents to Reduce Friction, Which Increases Horsepower & Torque
  • Improved Sealing Performance of the chamber, facilitating more power generation
  • Minimizes Exhaust Port Clogging
  • Superior Shear Stability
  • Exceptional Wear Protection & Durability to protect main bearing and eccentric shaft
  • Extends the life of turbochargers by reducing bearing coking
  • Contains special molybdenum agents to reduce friction, which increases horsepower & torque

With the precise base oil mix of PolyAlphaOlephins and PolyEsters, Idemitsu Rotary Engine Oils are able to minimize those deposits on your apex seals.

Allows for better sealing of the chamber, facilitating more power generation.

Extends the life of turbochargers by reducing bearing coking.

Specially developed additives facilitate even tooth load on the front stationary gear to allow for higher loads and higher RPM.

Premium anti-wear agents create a strong film between the main bearings and the eccentric shaft, reducing metal-to-metal contact and minimizing bearing wear.

Developed to reduce entrained gas generation. Entrained gases reduce the oils ability to prevent metal-on-metal contact, thereby increasing main bearing wear.

\Includes Molybdenum as a friction modifier. This compound reacts with the metal surfaces to create a low-shear boundary. The low shear characteristic reduces friction, increasing efficiency and power output.

10W-30 Product Spec Sheet / 20W-50 Product Spec Sheet

idemitsu premix

Idemitsu Racing Rotary Fuel Lube (Premix)
(Synthetic Blend) $5.00 a quart / $53.95 a case of 12qts (better value!)

  • Designed For Use In Gasoline Engines Only
  • Improved Sealing Performance
  • Provides Additional Wear Protection For Apex Seals, Side Seals, etc.
  • Keeps Fuel Injectors Clean For Reduced Maintenance
  • Minimizes Exhaust Port Clogging
  • Reduces Friction
  • Application: 1/2 oz. Per 1 Gallon of Gasoline

A special blend of base oils reduces deposits and subsequent exhaust port clogging. As a result, your rotary will maintain the power at which it was designed.

Special detergent/dispersant additives keep you fuel injectors clean to reduce maintenance.

Provides additional lubrication for apex and side seals to increase seal life and increase efficiency of engine.

Special additives allow for better sealing of the chamber, creating greater efficiency and more power.

 

 

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