HEAVY SHOCKPROOF®
✅ Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90
✅ For heavily-loaded racing differentials and transmissions, problem gearboxes
✅ Most popular ShockProof product, many racing and specialty applications
✅ Many performance racing applications like Sprint, Midget, Dirt Late Model and Quick Change Differentials, Detroit 
      Lockers and spools, NHRA Top Fuel and Funny Car rear ends
✅ Not recommended for most synchro applications due to the product's extreme slipperiness

Red Line ShockProof is a revolutionary lubricant with a chemistry that significantly reduces the thinning effect inherent in conventional lubricant technology. Red Line ShockProof Gear Oils offer multiple oil film layers between gear teeth with absolutely no throw-off. Temperatures are dramatically reduced through unparalled gear tooth shock loading protection.

The Heavy can be rated as a 75W250 Gear Oil, but has the lower internal fluid friction of a 75W90 oil. This weight is well suited for high horsepower and high-shock applications such as GT1, Trans-Am, and rally cars.

Red Line ShockProof is designed for competition differentials and manual transmissions only! It is not for use in production transmissions with synchromesh gears.

These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers (except NS) for proper limited-slip operation

○Fully-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
○Ester base stocks and friction modifiers (except NS) provide additional slipperiness to lower operating temperatures 
  by reducing the sliding friction in hypoid gears
○High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
○Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils
○Exceed API GL-5 specifications
○Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, 
  longer drain intervals, and less wear

Price per bottle(1 Quart = 0.946ml)