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GReddy Synthetic Oil 
GR Synthetic Oil is made from the finest automotive grade, Group IV, PAO and Ester base oils and specially designed additive packages, the GR oil is designed specifically to protect and enhance modern, small displacement, high horsepower engines. GR-3, the 5W-30 is ideal for high revving normally-aspirated engines, like VTEC Hondas. GR-2, 5W-40 works great for stock or bolt-on turbo kits, while the flagship GR-1, 10W60 is geared towards super high horsepower built-engines with high boost. GR synthetic oil can be purchased at any Authorized GReddy Dealer.
GR-1, 10W-60 oil is highly shear-stable engine oil that offers exceptional engine protection in performance driving conditions. This is especially important when protecting highly modified balanced and blueprinted engines, with forged pistons and bored cylinders. This 10W-60 oil contains special additive packages to protect high-power, high-acceleration, racing cars; including: +650hp front wheel drive Drag cars to +1000hp High Speed 0-300km/h Supras and Skylines.
GR-2, 5W-40 can be used in all turbocharged or naturally aspirated gasoline and diesel engines used in performance cars. It is recommended for use in rallying, motor racing and other arduous driving conditions such as sustained high-speed motoring, or in slow moving, dense traffic conditions. GR-2 oil contains special additive packages and a PAO and Ester base to maintain smooth RPM response, even though it maybe a heavier weight oil than factory recommend. GR-2 provides need protection for bolt-on and upgraded turbo and supercharger kits for all makes.
GR-3, 5W-30 is recommended for use in rallying, motor racing and other arduous driving conditions such as sustained high-speed motoring, or in slow moving, dense traffic conditions, for all naturally aspirated engines, especially those with multi-valves. GReddy GR-3 is high performance lightweight oil, which protects while reducing friction whatever the RPM. Engines with advanced cylinder heads, including oil actuated camshafts and camshaft-timing designs, benefit highly from the consistent oil pressure of GR-3, even
