Coolant / Antifreeze

Coolant / Antifreeze

At Design911, we supply a wide range of Porsche engine coolant and antifreeze for Porsche models, covering genuine Porsche formulations and carefully selected aftermarket alternatives so you can protect your engine and cooling system with confidence.

Why do does engine Coolant / Antifreeze matter?

Engine coolant and antifreeze are critical fluids in any Porsche, helping the engine reach and maintain its correct operating temperature while protecting internal components. The right coolant offers efficient heat transfer, corrosion protection and freeze protection, all matched to the materials used in Porsche engines and cooling systems. Over time, coolant ages, its additives deplete and it can become contaminated, so periodic replacement is essential to keep the system healthy.

• Maintain stable engine operating temperatures in everyday and demanding use
• Help protect radiators, heater cores, water pumps and internal passages from corrosion
• Provide freeze and boil-over protection when mixed to the correct strength
• Match Porsche specifications for compatibility with alloys, seals and plastics used in the system

Common options & kits

Individual replacement coolants
Specific Porsche-approved or compatible coolant concentrates or ready-mixed products to match the specification required for your model and year.

• Ideal when refreshing coolant during routine servicing or after repairs
• Lets you stay with genuine Porsche coolant or move to a trusted aftermarket equivalent
• Available in different formulations to suit particular Porsche coolant specs

System top-up products and additives
Coolant and antifreeze products intended for careful topping up, plus compatible additives where appropriate.

• Useful when you have corrected leaks and need to restore the correct level
• Can help align concentration (freeze / boil protection) after partial losses
• Best used once you are sure the system is properly bled and leak-free

Complete cooling refresh packages
Grouped products that can be bought together when carrying out a wider cooling system overhaul.

• Convenient when replacing radiators, hoses, water pump or thermostat at the same time
• Makes it easier to have enough correct-specification coolant on hand
• Ideal for major servicing or refurbishment work on older Porsche models

Brands available in this category

For this category we stock a wide choice of trusted brands for Porsche models. You can also browse and filter by brand on this page to focus on your preferred manufacturers.

Castrol
Castrol supplies a broad range of high-quality automotive fluids, including coolants and lubricants engineered to meet modern manufacturer specifications. Their products are widely used in professional workshops and are chosen for consistent quality and strong technical backing.

Comma
Comma offers a comprehensive range of coolants and vehicle fluids designed to meet or exceed major OEM standards. With clear application data and strong OEM alignment, Comma coolants are a practical choice when you want reliable protection and good value for Porsche servicing.

Evans
Evans specialises in advanced cooling system solutions and has long experience working with performance and specialist applications. Their products are often selected where owners are looking for stable cooling behaviour and additional protection against boil-over in demanding conditions, provided the system is prepared correctly.

Porsche
Genuine Porsche coolant is formulated specifically for Porsche engines and cooling system materials. It is the default choice when you want factory specification, straightforward compatibility and alignment with Porsche guidance, particularly on newer models or where warranty considerations apply.

Wurth
Würth focuses on professional-grade workshop consumables, including cleaners, sealants and related products used when working on Porsche cooling systems. Correct preparation and sealing products help ensure leak-free joints and durable repairs alongside the correct choice of coolant.

When should you review or replace your Porsche coolant / antifreeze?

Checking coolant condition regularly is important for any Porsche. Even if the level looks acceptable, age, contamination and loss of corrosion protection can all develop out of sight. Following Porsche’s service schedule is a good baseline, but it is also wise to reassess the coolant whenever you are troubleshooting temperature or heater issues.

• You experience overheating, fluctuating temperatures or the heater not blowing hot
• You notice coolant loss, white or crusty residue around joints, or damp areas on hoses and radiators
• The coolant appears discoloured (brown / rusty) or shows signs of oil contamination
• The system has recently been opened for repairs and needs refilling and proper bleeding

If any of these apply, it is a good time to review your coolant / antifreeze and replace anything that is past its best so your Porsche stays dependable and enjoyable to drive.

Explore coolant / antifreeze for Porsche with Design911

Browse coolant and antifreeze for Porsche at Design911 — from genuine Porsche fluids to high-quality alternatives — and find the right specification for your engine and model year. Our team can help you confirm compatibility and select products suited to routine servicing, repairs or more extensive cooling system work.