Heavy Shock Proof now back in stock

Red Line Heavy ShockProof gear oil is a bit of a legend in high-performance lubrication circles. It’s not your average gear oil—it’s engineered for extreme protection under brutal conditions, especially where shock loading and high torque are the norm.

🛠️ What It's Used For

Red Line Heavy ShockProof is designed for:

• Heavily loaded racing differentials and transmissions
• Detroit Lockers, spools, and quick-change differentials
• NHRA Top Fuel and Funny Car rear ends
• Off-road and drag racing applications
• Problem gearboxes that suffer from noise, wear, or heat

It’s not recommended for most synchro-based manual transmissions due to its extreme slipperiness2.

⚙️ How It Compares to Other Brands

Red Line’s unique formula includes microscopic solid particles suspended in the oil, which spread load across gear teeth and reduce metal-to-metal contact3. This is quite different from conventional oils that rely solely on fluid film.

🌟 Key Advantages

• Extreme pressure protection: Prevents gear tooth breakage under shock loads
• Low fluid friction: Improves power transfer and reduces operating temperatures
• Superior film strength: Maintains protection even under high heat and stress
• Reduced gear noise and wear: Especially noticeable in racing or noisy gearboxes
• Longer drain intervals: Thanks to high shear stability and oxidation resistance
• Fully synthetic: Made from polyol ester base stocks for top-tier thermal stability4

If you're running a street car, this might be overkill. But for racing, off-roading, or taming a noisy differential, it’s a serious contender