Finol CoolTemp Ultra SI-OAT RTU Pink (Premixed) | Long-Life Ready to Use Engine Coolant & Antifreeze

The Finol CoolTemp Ultra SI-OAT RTU Pink (Premixed) is a premium ready-to-use long-life engine coolant and antifreeze formulated using advanced Silicated Organic Acid Technology (SI-OAT). Based on high-quality monoethylene glycol, this pre-mixed coolant delivers outstanding protection against freezing, overheating, corrosion, cavitation, and scale formation, making it ideal for modern petrol and diesel engines in passenger cars, commercial vehicles, agricultural machinery, and construction equipment.

Supplied pre-mixed and ready for immediate use, there is no need to dilute with water, ensuring the correct concentration for maximum cooling system performance and protection. The advanced SI-OAT formulation provides extended service life while protecting aluminium, cast iron, copper, brass, and other cooling system components from corrosion and erosion.

Key Features

• Ready-to-use (Premixed) engine coolant
• Advanced SI-OAT (Silicated Organic Acid Technology)
• Long-life monoethylene glycol formulation
• Protects against freezing, overheating and corrosion
• Excellent cavitation and water pump protection
• Prevents rust, limescale and harmful deposits
• Outstanding protection for aluminium engines
• No mixing required – ready to pour
• Suitable for modern petrol and diesel engines
• Ideal for automotive, agricultural and commercial vehicles

Applications

Recommended for:

• Passenger cars
• Light commercial vehicles
• Heavy-duty trucks
• Buses and coaches
• Agricultural tractors
• Construction equipment
• Plant machinery
• Industrial engines
• Fleet vehicles

Benefits

• Long service life with extended corrosion protection
• Ready to use for fast and convenient filling
• Excellent heat transfer for improved engine cooling
• Protects water pumps against corrosion and cavitation
• Prevents scale and deposit build-up
• Suitable for mixed-metal cooling systems
• Helps maximise cooling system efficiency
• Reliable all-season protection against freezing and overheating

Manufacturer Approvals & Performance Standards

Meets or exceeds:

• AFNOR NF R 15-601
• ASTM D3306
• ASTM D4985
• BS 6580:2010
• SAE J1034
• CUNA NC 956-16
• VW TL 774-G (G12/G12++)
• Mercedes-Benz MB 325.5 / 325.6
• MAN 324 Type Si-OAT
• Cummins CES 14603
• Scania TB 1451
• TSIO/C2153/BG40

Ideal For

Perfect for:

• Modern petrol engines
• Modern diesel engines
• Euro 6 commercial vehicles
• Agricultural machinery
• Off-highway equipment
• Fleet maintenance
• Professional workshops
• Commercial garages
• Plant hire companies
• Industrial vehicle maintenance

Why Choose Finol CoolTemp Ultra SI-OAT RTU?

The Finol CoolTemp Ultra SI-OAT RTU Pink (Premixed) offers professional-grade cooling system protection in a convenient ready-to-use formula. Its advanced SI-OAT technology provides long-lasting defence against corrosion, cavitation, overheating and freezing while maintaining optimum engine operating temperatures. Designed for modern vehicles and heavy-duty equipment, it helps extend cooling system life and reduces maintenance costs by delivering reliable, year-round performance.

Click & Collect is available during all shop opening hours

FREE delivery for all order over €150 inc Vat placed online in Ireland, This excludes BULKY ITEMS (Pallet deliveries) T&C apply. 

If you place an order online, we will contact you if any of your items are out of stock with current lead times or alternatives if suitable.

Your product is covered by a 12 month Warranty or more if you opted for the extended warranty. Make sure you register your product.