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$35 OFF Engine Protection: The EVIL ENERGY Black Friday Deal on Coolant Overflow Tank & Oil Catch Can Kits

by Amber 19 Nov 2025 0 Comments
Evil Energy Black Friday special: 2-in-1 Coolant Overflow Tank and Oil Catch Can combo kit installed in a car engine bay, showing premium black finish.

Double Protection, Efficiency Multiplied

The Combined Power of Coolant Overflow Tank and Oil Catch Can

The EVIL ENERGY Black Friday annual sale is officially underway! Are you looking for a highly efficient, space-saving solution to simultaneously optimize your vehicle's cooling system with a Coolant Overflow Tank and its oil management with an Oil Catch Can? This integrated approach, available now during EVIL ENERGY Black Friday, is the perfect answer. This system delivers crucial dual functionality in a single, compact unit, maximizing engine bay space while providing comprehensive protection. Utilizing this EVIL ENERGY Black Friday special is the smartest time for an effective upgrade.

Why Combine the Coolant Overflow Tank and Oil Catch Can?

  • Space Optimization: For cramped engine bays, integrating the Coolant Overflow Tank and Oil Catch Can minimizes independent mounting points and required hose routing, resulting in a cleaner installation.
  • Performance Synergy: The Coolant Overflow Tank ensures stable cooling system pressure, while the Oil Catch Can keeps intake air clean. They work synergistically to guarantee the engine operates in peak condition.
  • Black Friday Value: During the EVIL ENERGY Black Friday promotion, purchasing this 2-in-1 Coolant Overflow Tank and Oil Catch Can kit offers exceptional value, often surpassing the cost of buying components separately.

Coolant Overflow Tank Deep Dive: Function, Maintenance, and Overflow Reasons

Evil Energy Aluminum Coolant Overflow Tank installed in car engine bay, showing polished finish and hose connections.

The Coolant Overflow Tank plays a critical role in the cooling system. Here are authoritative answers to common user questions:

❓ What does the coolant overflow tank do?

The Coolant Overflow Tank (also called a reservoir or recovery bottle) functions as a buffer container. When the engine heats up, expanding coolant is safely directed into the Coolant Overflow Tank. When the engine cools, the system draws the coolant back into the radiator. This ensures the system remains full and maintains the precise working pressure, making the Coolant Overflow Tank essential for preventing overheating.

❓ Should you fill the coolant overflow tank?

No, you should not fill the Coolant Overflow Tank completely. The tank needs space to accommodate expanding liquid. It must be filled between the MIN and MAX marks. Overfilling the Coolant Overflow Tank will cause liquid to spill out when the coolant expands, rendering its crucial buffering function useless. Please follow the marking lines, especially when installing your EVIL ENERGY Black Friday Coolant Overflow Tank.

❓ Why would my coolant reservoir overflow?

A persistent overflow of the Coolant Overflow Tank usually signals a system fault. Common causes include a failing radiator cap (unable to hold pressure), a leaking head gasket (exhaust gases entering the system and spiking pressure), or simply overfilling. If your Coolant Overflow Tank frequently overflows, immediate cooling system inspection is required.

Evil Energy Black Friday sale: Aluminum Coolant Overflow Tank installed in engine bay, featuring up to $35 OFF discount sticker.

Oil Catch Can Deep Dive: Function, Installation, and Safe Application

The Oil Catch Can is indispensable for engine health, protecting your intake and valves from harmful contaminants.

Diagram of Coolant Overflow Tank working principle with level indicator, illustrating high and low pressure coolant flow.

❓ What does an oil catch can do?

The Oil Catch Can separates oil vapor, unburned fuel, and moisture from the crankcase ventilation system (PCV). Without an Oil Catch Can, these contaminants would be routed back into the intake manifold, leading to carbon buildup on valves and in the intake system. Regularly emptying the Oil Catch Can keeps the engine clean, maintains performance, and extends the life of the intake components.

❓ Can car oil catch on fire?

While the fluids captured by the Oil Catch Can are flammable, the risk of fire during normal operation is extremely low because the tank is sealed and operates at low temperatures. The key safety measure is to regularly empty the Oil Catch Can to prevent overfilling. All EVIL ENERGY Black Friday Oil Catch Can kits feature safe designs and clear guidelines.

❓ How to install an oil catch can?

Installation of the Oil Catch Can involves intercepting the PCV routing. The core steps are: routing the crankcase ventilation line into the Oil Catch Can inlet, and connecting the Oil Catch Can outlet back to the intake manifold. Our EVIL ENERGY Black Friday Oil Catch Can kits include detailed instructions and all necessary fittings.

Upgrade Your Entire System: Maximize Savings with Tiered Discounts

To help you reach the top savings tiers, consider pairing the Coolant Overflow Tank and Oil Catch Can combo with other essential components like Radiators, Cooling Fans, Oil Coolers, Transmission Oil Coolers, Thermostat Housing Kits, and Oil Pan upgrades.

Spend Get Off (No Codes Needed!)
$300 $35 off
$199 $20 off
$119 $10 off
$70 $5 off

During Black Friday, discounts will be updated from time to time—hidden mega deals are coming!

Who Needs the Coolant Overflow Tank & Oil Catch Can Combo Upgrade?

Target Audience:

  • Performance Enthusiasts: Modders seeking maximum engine health and a clean, high-performance look.
  • Turbocharged Vehicle Owners: Turbo engines have higher heat loads (necessitating the Coolant Overflow Tank) and higher crankcase pressures (necessitating the Oil Catch Can).
  • Maintenance-Focused Drivers: Those looking to achieve long-term component cleanliness and protection by leveraging the savings from the EVIL ENERGY Black Friday sale.

Best Timing:

The current EVIL ENERGY Black Friday event is the ideal time to purchase both the Coolant Overflow Tank and the Oil Catch Can combination kit. Secure this critical upgrade at the year's lowest price, giving your engine the most reliable dual protection for cooling and oil management. Don't delay—this Coolant Overflow Tank and Oil Catch Can pairing is the best deal of the EVIL ENERGY Black Friday season!

Stay tuned and don’t miss this once-a-year opportunity!

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