2017 Ford Taurus Coolant/Antifreeze

FRAM Extended Life AMAM 50/50 is compatible with any antifreeze/coolant in any vehicle with aluminum or other cooling system metals. The formulas have a blend of long-lasting inhibitors to guard against temperature extremes and the effects of rust, corrosion, and premature water pump failure. Top-off your cooling system with FRAM Extended Life AMAM 50/50, which is a blend of 50% antifreeze and 50% demineralized water. FRAM 50/50 meets or exceeds ASTM D3306 and D4985 for corrosion protection for cars and light duty trucks, while providing reliable freeze-up and boil-over protection.

Product Features:

• Formulated to work with All Vehicles. Universally works with all fluid colors; All OAT, POAT, HOAT and IAT
• 5 year/150,000 mile Extended life formula.
• Meets or exceeds ASTM D3306 and D4985 for corrosion protection.
• Ready to Use formula (prediluted to a 50% Eg and 50% distilled water mix). Perfect for small volume top-off or complete drain and refill of the cooling system

ZEREX G05® is the automaker approved original chemistry used in newer Ford®, Chrysler® and Mercedes-Benz® automotive and diesel engines. Its Hybrid Organic Acid Technology (HOAT) chemistry combines the best of conventional and organic acid-based chemistry to provide the ultimate protection against rust and corrosion. ZEREX G05 antifreeze/coolant uses the highest-quality virgin ethylene glycol for freeze and boil over protection and a hybrid organic acid corrosion inhibitor package to protect your engines from liner pitting and corrosion.

Product Features:

• Automaker approved technology. Provides protection for 5 years / 150,000 miles in light duty applications and 3 years / 300,000 miles in heavy duty applications.
• Formulated for long life performance
• Low-silicate, low-pH and phosphate-free formula
• Helps protect all cooling system metals, including aluminum

FRAM Extended Life AMAM Concentrate is compatible with any antifreeze/coolant in any vehicle with aluminum or other cooling system metals. The formulas have a blend of long-lasting inhibitors to guard against temperature extremes and the effects of rust, corrosion, and premature water pump failure. FRAM Concentrate meets or exceeds ASTM D3306 and D4985 for corrosion protection for cars and light duty trucks, while providing reliable freeze-up and boil-over protection.

Product Features:

• Formulated to work with All Vehicles. Works with all fluid colors; All OAT, POAT, HOAT and IAT.
• Longer Engine Life Guarantee – 5 year/150,000 mile Extended life formula.
• Includes patented technology, the best advancement in cooling system parts protection that protects against rust and corrosion of all cooling system metals, including aluminum. Protection for 150,000 miles.
• Concentrate formula. Must mix with distilled to the desired mix ratio of EG and water. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.

PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for NORTH AMERICAN VEHICLES is a line of premium coolants specifically designed to match the technology and color requirements of North American vehicles. Each coolant is formulated with the same corrosion inhibitor technology that protected your vehicle straight from the factory. Color cues on the packaging and a list of covered vehicles on the front label make it easy to identify the right match for your specific vehicle. PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for NORTH AMERICAN VEHICLES – ORANGE is an extended life antifreeze/coolant based on proprietary state-of-the-art organic acid technology (OAT). The ethylene glycol-based formula represents a carefully balanced mixture of organic acid corrosion inhibitors for complete protection of modern high-performance North American vehicle engines. It can be mixed with any DEX-COOL approved formulations in newer GM, Opel, Daewoo and Saab vehicles, as well as with antifreeze/coolant in Ford and Chrysler vehicles requiring an orange type product. This product’s orange color distinguishes its unique chemistry and ensures easy selection for North American vehicles requiring this type and color of coolant. PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for NORTH AMERICAN VEHICLES – ORANGE is free of silicate, borate, phosphate, nitrite, and amines, and is fully compatible with other extended life coolants. It meets the performance requirements of ASTM D3306 and D4985. When installed as part of a complete flush and coolant fill, PEAK guarantees this coolant will provide service life protection of up to 150,000 miles or 5 years.

Product Features:

• Matches technology and color requirements of North American OEMs specifying a Green Conventional coolant
• Protects all cooling system metals, including aluminum, against damaging rust and corrosion
• Compatible with other conventional green antifreeze + coolant formulations
• Easy-to-pour bottle with color-coding and vehicle applications listed on the front to simplify selecting the right antifreeze + coolant
• Available as both concentrate and 50/50 prediluted products to do the job right
• Testing Requirements: For proper freeze and boil over protection, use a traditional refractometer or hydrometer to measure the percentage of ethylene glycol by volume.

Prestone All Vehicles antifreeze+coolant (ready to use) is truly designed to work with all vehicles; all makes, models, years and fluid colors. It is designed to work with all new engines while also being backwards compatible improving protection in all older engines. The patented Cor-Guard technology (the best innovation in the category in decades) instantly protects parts from corrosion, buildup, pitting, scaling, rust and other damage. These fluids are specially designed to not only manage the engine temp and protect from freezing up (like competitors), but they also protect the engine from damage. Internal damage can cause engine part failure, leading to expensive repairs and serious inconveniences . Avoid costly repairs and vehicles in the shop with Prestone All Vehicles antifreeze+coolant. This fluid is designed to last 10yrs/300,000 miles and also to protect the internal parts of the engine for 10yrs/300,000, officially patented by Prestone.

Product Features:

• Formulated to work with All Vehicles. Works with all fluid colors; All OAT, POAT, HOAT and IAT.
• Longer Engine Life Guarantee – 10 year/300,000 mile Extended life formula.
• Includes patented Prestone CorGuard technology, the best advancement in cooling system parts protection that protects against rust and corrosion of all cooling system metals, including aluminum. Protection for 300,000 miles.
• Ready to Use formula (prediluted to a 50% Eg and 50% distilled water mix). Perfect for small volume top-off or complete drain and refill of the cooling system

Prestone Platinum antifreeze+coolant is Prestone’s best universal antifreeze and coolant product. Guaranteed to work with all vehicles; all makes, models, years and fluid colors. 15+ years, 350,000 miles of protection; the fluid is Guaranteed for the life of your vehicle. This advanced product delivers Extreme Protection against both freezing temperatures (-50 deg.) and overheating/boiling over of the engine (+268 deg.). Prestone Platinum utilizes industry leading protection from engine damaging rust, corrosion, buildup and scale. While ordinary antifreeze coolant only focuses on the basic corrosion coverage, Prestone Platinum goes farther, adding our most advanced cooling system protection, allowing the system to run optimally, like when it was new. Internal buildup and corrosion damage can cause engine part failure or clogging, leading to expensive repairs and inconveniences. Prestone Platinum helps you avoid costly repairs and vehicles in the shop. This extended life coolant is Guaranteed to work with all new engines and engine technology, while also being backwards compatible, improving protection in all older engines. Prestone Platinum antifreeze+coolant – Year Round Protection.

Product Features:

• Guaranteed to work with All Vehicles. Universally works with all fluid colors; All OAT, POAT, HOAT and IAT; G05, G11, G12, G12++, G13, G30, G40, and GG40. For all engines and engine sizes, new and older engines.
• 15+ year/350,000 mile Extended life formula. The fluid is guaranteed for the life of your vehicle
• Includes our most advanced Prestone Cor-Guard technology, unmatched cooling system parts protection that protects against engine damage; rust, corrosion, scale, build-up and clogging. Protection for 15+yrs/350,000 miles.
• Concentrated formula. Must mix with high quality water to the desired ratio. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.

PEAK Antifreeze + Coolant Concentrate is specially engineered to deliver guaranteed superior lifetime protection. Its advanced universal formula contains a proprietary blend of 10X the scale-fighting inhibitors coupled with robust organic additives to fight against the damaging effects of scale deposits and corrosion. PEAK Antifreeze + Coolant is free of 2-EHA, silicate, nitrite, borate, and amines, ensuring maximum cooling system performance for 10 years/300,000 miles. It is compatible for use with any color or type of antifreeze/coolant in the system.

Product Features:

• Specially formulated to deliver Superior Lifetime Protection against damaging scale and corrosion
• Contains 10X the scale-fighting inhibitors to ensure maximum cooling system performance
• Provides more coverage for 10+ years/300,000+ miles of service
• Universal formula is compatible with any color or type of antifreeze/coolant
• Meets the performance requirements of ASTM D3306 and D4985

FRAM Conventional Green Concentrate is an ethylene glycol-based product for use in car and light duty trucks that are already using a conventional coolant. The inhibitors prevent rust, corrosion, and provide freeze up and boil-over protection. When used as directed, the FRAM Green Concentrate Low Silicate formula provides full protection for a minimum of one year.

Product Features:

• Low Silicate Formula.
• When used as directed, will provide protection for a minimum of 1 year
• Meets or exceeds ASTM requirements for cars, light duty trucks
• Concentrated formula. Must mix with high quality (distilled/deionized) water to the desired ratio. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.

Prestone DEX-COOL (Ready to use) antifreeze+coolant is specially designed to work with these specific vehicles: All GM vehicles 1995 and newer (GM approved), most Ford vehicles 2011 – 2018 and most Chrysler vehicles 2013 and newer. Prestone’s Antifreeze+Coolants are designed to the highest standards using state of the art technology. These fluids are designed to not only manage the engine temp and protect from freezing up, they also protect the engine from rust and corrosion. This fluid is designed to last 5yrs/150,000 miles.

Product Features:

• Specially formulated to work with vehicles using orange colored fluid; HOAT. All GM 1995 and newer; Most Ford 2011-2018; Most Chrysler 2013 and newer
• 5 year/150,000 mile Extended life formula
• Includes the Prestone protection package that protects against rust and corrosion of all cooling system metals, including aluminum.
• Ready to Use formula. Perfect for small volume top-off or complete drain and refill of the cooling system.

Prestone All Vehicles antifreeze+coolant (concentrate) is truly designed to work with all vehicles; all makes, models, years & fluid colors. It is designed to work with all new engines, while also being backwards compatible improving protection in all older engines. The patented Cor-Guard technology (the best innovation in the category in decades) instantly protects parts from corrosion, buildup, pitting, scaling, rust and other damage. Prestone’s Antifreeze + Coolants are designed to the highest standards using state of the art technology. These fluids are specially designed to not only manage the engine temp and protect from freezing up (like competitors), but they also protect the engine from damage. internal damage can cause engine part failure, expensive repairs and serious inconveniences . Avoid costly repairs and vehicles in the shop with Prestone All Vehicles antifreeze+coolant. This fluid is designed to last 10yrs / 300,000 miles and also to protect the internal parts of the engine for 10yrs / 300,000, officially patented by Prestone.

Product Features:

• Formulated to work with All Vehicles. Works with all fluid colors; All OAT, POAT, HOAT & IAT.
• Longer Engine Life Guarantee – 10 Yr., 300,000 mile Extended life formula.
• Includes patented Prestone CorGuard technology, the best advancement in cooling system parts protection that protects against rust and corrosion of all cooling system metals, including aluminum. Protection for 300,000 miles.
• Concentrate formula. Must mix with distilled to the desired mix ratio of EG & water. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.

ZEREX G05® is the automaker approved original chemistry used in newer Ford®, Chrysler® and Mercedes-Benz® automotive and diesel engines. Its Hybrid Organic Acid Technology (HOAT) chemistry combines the best of conventional and organic acid-based chemistry to provide the ultimate protection against rust and corrosion. ZEREX G05® antifreeze/coolant uses the highest quality virgin ethylene glycol for freeze and boil over protection and a hybrid organic acid corrosion inhibitor package to protect your engines from liner pitting and corrosion.

Product Features:

• Automaker approved technology. Provides protection for 5 years / 150,000 miles in light duty applications and 3 years / 300,000 miles in heavy duty applications
• Formulated for long life performance
• Low-silicate, low-pH and phosphate-free formula
• Helps protect all cooling system metals, including aluminum

PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for NORTH AMERICAN VEHICLES is a line of premium coolants specifically designed to match the technology and color requirements of North American vehicles. Each coolant is formulated with the same corrosion inhibitor technology that protected your vehicle straight from the factory. Color cues on the packaging and a list of covered vehicles on the front label make it easy to identify the right match for your specific vehicle. PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for NORTH AMERICAN VEHICLES – GOLD is an extended life antifreeze/coolant based on proprietary hybrid organic acid technology (HOAT). The ethylene glycol-based formula combines a mixture of organic acid corrosion inhibitors, stabilized silicate and a nitrite/nitrate combination to provide complete corrosion protection to both gasoline and diesel engines. Its low silicate formula with deposit control additives protects against wet sleeve liner cavitation and scale formation. This product¿s gold color distinguishes its unique chemistry and ensures easy selection for Ford and Chrysler vehicles requiring this type of technology and coolant color. PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for NORTH AMERICAN VEHICLES – GOLD is free of phosphate, amines and 2-ethyl hexanoic acid (2-EHA) and is safe for non-metallic cooling system components. It is fully compatible with other gold hybrid coolants and meets the performance requirements of ASTM D3306, D4985 and D6210. With a complete flush and fill, PEAK guarantees this coolant will provide the service life specified by the OEMs utilizing this specific technology, typically up to 5 years or 150,000 miles.

Product Features:

• Matches technology and color requirements of North American OEMs specifying a Green Conventional coolant
• Protects all cooling system metals, including aluminum, against damaging rust and corrosion
• Compatible with other conventional green antifreeze + coolant formulations
• Easy-to-pour bottle with color-coding and vehicle applications listed on the front to simplify selecting the right antifreeze + coolant
• Available as both concentrate and 50/50 prediluted products to do the job right
• Testing Requirements: For proper freeze and boil over protection, use a traditional refractometer or hydrometer to measure the percentage of ethylene glycol by volume.

Product Features:

• Work with vehicles using orange colored fluid. 5 Yr., 150,000 mile Extended life formula.
• All GM vehicles 1995 and newer/GM approved (GMC, Chevrolet, Buick, Cadillac, Pontiac, Saturn, Oldsmobile, Hummer), most Ford vehicles 2011- 2018 (Ford, Lincoln, Mercury) and most Chrysler vehicles 2013 and newer (Ram, Dodge, Jeep, Chrysler)
• Meets or exceeds ASTM D3306 and D4985 for corrosion protection.
• Ready to Use formula (prediluted to a 50% Eg and 50% distilled water mix). Perfect for small volume top-off or complete drain and refill of the cooling system

Prestone DEX-COOL (concentrate) antifreeze+coolant is specially designed to work with these specific vehicles: All GM vehicles 1995 and newer (GM approved), most Ford vehicles 2011 – 2018 and most Chrysler vehicles 2013 and newer. Prestone’s Antifreeze+Coolants are designed to the highest standards using state of the art technology. These fluids are designed to not only manage the engine temp and protect from freezing up, they also protect the engine from rust and corrosion. This fluid is designed to last 5yrs/150,000 miles.

Product Features:

• Specially formulated to work with vehicles using orange colored fluid; HOAT. All GM 1995 and newer; Most Ford 2011-2018; Most Chrysler 2013 and newer
• 5 year/150,000 mile Extended life formula
• Includes the Prestone protection package that protects against rust and corrosion of all cooling system metals, including aluminum.
• Concentrate formula. Must mix with distilled to the desired mix ratio of EG and water. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.

Antifreeze Conventional Green 50/50 is an ethylene glycol-based product for use in car and light duty trucks that are already using a conventional coolant. The inhibitors prevent rust, corrosion, and provide freeze up and boil-over protection. FRAM Green 50/50 can be used to top-off cooling systems in vehicles using conventional AF/C, will not harm rubber parts, and meets ASTM D3306 and D4985 standards.

Product Features:

• Low Silicate Formula.
• When used as directed, will provide protection for a minimum of 1 year
• Meets or exceeds ASTM requirements for cars, light duty trucks
• Ready to Use formula (prediluted to a 50% Eg & 50% distilled water mix). Perfect for small volume top-off or complete drain and refill of the cooling system

All Antifreeze + Coolants are not the same. Prestone MAX antifreeze + coolant is GUARANTEED to provide MAXIMUM ENGINE PROTECTION in all Vehicle Makes, Models & Years. It delivers the widest range of temperature protection, industry leading protection from engine damaging rust & corrosion and the longest lasting protection in the industry. Trust Prestone for maximum, year-round engine protection.

Product Features:

• Can top off or replace all antifreeze + coolant colors and formulations in all Vehicle Makes, Models & Years – Guaranteed.
• Our patented, advance formula provides extreme temperature protection from the worst of winter deep freezes and scorching summer heat.
• We deliver industry leading protection from engine damaging rust, corrosion & buildup. Prestone MAX completely stops the formation of rust & corrosion for better engine performance and longer engine life.
• Prestone Max is guaranteed to protect your vehicle for 15+ years and/or 350,000 miles. It’s the longest fluid life in the industry.
• This is a Ready to Use formula – prediluted 56/44.

Prestone Platinum antifreeze+coolant is Prestone’s best universal antifreeze and coolant product. Guaranteed to work with all vehicles; all makes, models, years and fluid colors. 15+ years, 350,000 miles of protection; the fluid is Guaranteed for the life of your vehicle. This advanced product delivers Extreme Protection against both freezing temperatures (-50 deg.) and overheating/boiling over of the engine (+268 deg.). Prestone Platinum utilizes industry leading protection from engine damaging rust, corrosion, buildup and scale. While ordinary antifreeze coolant only focuses on the basic corrosion coverage, Prestone Platinum goes farther, adding our most advanced cooling system protection, allowing the system to run optimally, like when it was new. Internal buildup and corrosion damage can cause engine part failure or clogging, leading to expensive repairs and inconveniences. Prestone Platinum helps you avoid costly repairs and vehicles in the shop. This extended life coolant is Guaranteed to work with all new engines and engine technology, while also being backwards compatible, improving protection in all older engines. Prestone Platinum antifreeze+coolant – Year Round Protection.

Product Features:

• Guaranteed to work with All Vehicles. Universally works with all fluid colors; All OAT, POAT, HOAT and IAT; G05, G11, G12, G12++, G13, G30, G40, and GG40. For all engines and engine sizes, new and older engines.
• 15+ year/350,000 mile Extended life formula. The fluid is guaranteed for the life of your vehicle
• Includes our most advanced Prestone Cor-Guard technology, unmatched cooling system parts protection that protects against engine damage; rust, corrosion, scale, build-up and clogging. Protection for 15+yrs/350,000 miles.
• Ready to Use formula – Prediluted 56/54. Perfect for small volume top-off or complete drain and refill of the cooling system

PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for ASIAN VEHICLES is a line of premium coolants specifically designed to match the technology and color requirements of Asian vehicles. Each coolant is formulated with the same corrosion inhibitor technology that protected your vehicle straight from the factory. Color cues on the packaging and a list of covered vehicles on the front label make it easy to identify the right match for your specific vehicle. PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for ASIAN VEHICLES – GREEN is an ethylene glycol-based antifreeze/coolant specifically developed for use in any Asian vehicle requiring a Green phosphate-enhanced organic acid technology (POAT) formulation. It contains high-quality organic acid corrosion inhibitors and is free of borate, nitrite, silicate and amines chemicals. PEAK ORIGINAL EQUIPMENT TECHNOLOGY ANTIFREEZE + COOLANT for ASIAN VEHICLES – GREEN meets the performance requirements of ASTM D3306 and JIS K2234. With a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 150,000 miles or 5 years.

Product Features:

• Matches each Asian vehicle manufacturer¿s technology and color requirements
• Matches each Asian vehicle manufacturer┐s technology and color requirements
• Protects all cooling system metals from rust and corrosion
• Meets the performance requirements of ASTM D3306 and JIS K2234
• Service life of up to 5 years/150,000 miles with a complete cooling system flush and fill
• Color-coding and vehicle applications listed on the front simplify selecting the right antifreeze/coolant
• Available as both concentrate and 50/50 products to do the job right
• Testing Requirements: For proper freeze and boil over protection, use a traditional refractometer or hydrometer to measure the percentage of ethylene glycol by volume.

Prestone MAX antifreeze + coolant uses Advanced Original Equipment Technology to provide maximum engine protection in all Ford, Lincoln and Mercury vehicles from 2002 and newer, Guaranteed. Our Advanced Technology formula delivers high performance temperature protection, industry leading protection from engine damaging rust and corrosion and the longest lasting protection in the industry. Trust Prestone – the leading manufacturer of Original Equipment Antifreeze + Coolant in North America.

Product Features:

• Can top off or replace any Orange, Gold (GO5) or Yellow antifreeze + coolant used in Ford, Lincoln or Mercury vehicles 2002 and Newer, guaranteed. 50/50 Ready to Use (RTU) formula.
• High performance temperature protection from deep winter freezes and scorching summer heat.
• Industry leading protection from engine damaging rust, corrosion and buildup. Prestone MAX completely stops the formation of rust and corrosion for better engine performance and longer engine life.
• Prestone Max is guaranteed to protect your vehicle for 15+ years and/or 350,000 miles. It’s the longest fluid life in the industry.

All Antifreeze + Coolants are not the same. Prestone MAX antifreeze + coolant is GUARANTEED to provide MAXIMUM ENGINE PROTECTION in all Vehicle Makes, Models & Years. It delivers the widest range of temperature protection, industry leading protection from engine damaging rust & corrosion and the longest lasting protection in the industry. Trust Prestone for maximum, year-round engine protection.

Product Features:

• Can top off or replace all antifreeze + coolant colors and formulations in all Vehicle Makes, Models & Years – Guaranteed.
• Our patented, advance formula provides extreme temperature protection from the worst of winter deep freezes and scorching summer heat.
• We deliver industry leading protection from engine damaging rust, corrosion & buildup. Prestone MAX completely stops the formation of rust & corrosion for better engine performance and longer engine life.
• Prestone Max is guaranteed to protect your vehicle for 15+ years and/or 350,000 miles. It’s the longest fluid life in the industry.
• This is a Concentrated Formula. Must mix with high quality water to the desired ratio.

Prestone American Vehicles (Orange) antifreeze+coolant is specially designed to work with these specific vehicles: Ford 2002 and newer; Chrysler 2000 and newer; GM 1995 and newer. Prestone’s Antifreeze+Coolants are designed to the highest standards using state of the art technology. These fluids are designed to not only manage the engine temp and protect from freezing up, but they also protect the engine from rust, corrosion, buildup, pitting and engine damage. All of those can cause engine part failure and expensive repairs. Avoid costly repairs and vehicles in the shop with Prestone Asian vehicles antifreeze+coolant. This fluid is designed to last 10yrs / 300,000 miles and also to protect the internal parts of the engine for 10yrs / 300,000, officially patented by Prestone.

Product Features:

• Specially formulated to work with vehicles using multiple colors of fluid; OAT, HOAT, G05. Ford 2002 and newer; Chrysler 2000 and newer; GM (Chevrolet, Buick, GMC, Cadillac, Oldmobile, Pontiac, Saturn) 1995 and newer.
• Superior protection guarantee – 10 Yr., 300,000 mile Extended life formula
• Includes patented Prestone CorGuard technology, the best advancement in cooling system parts protection that protects against rust and corrosion of all cooling system metals, including aluminum. Protection for 300,000 miles.
• Ready to Use formula. Perfect for small volume top-off or complete drain and refill of the cooling system.

Product Features:

• Work with vehicles using orange colored fluid. 5 Yr., 150,000 mile Extended life formula.
• All GM vehicles 1995 and newer/GM approved (GMC, Chevrolet, Buick, Cadillac, Pontiac, Saturn, Oldsmobile, Hummer), most Ford vehicles 2011- 2018 (Ford, Lincoln, Mercury) and most Chrysler vehicles 2013 and newer (Ram, Dodge, Jeep, Chrysler)
• Meets or exceeds ASTM D3306 and D4985 for corrosion protection.
• Concentrated formula. Must mix with high quality (distilled/deionized) water to the desired ratio. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.