{"id":2519,"date":"2024-09-05T13:16:40","date_gmt":"2024-09-05T17:16:40","guid":{"rendered":"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/?p=2519"},"modified":"2024-09-05T13:16:42","modified_gmt":"2024-09-05T17:16:42","slug":"coolant-and-refrigerant-whats-the-difference","status":"publish","type":"post","link":"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/coolant-and-refrigerant-whats-the-difference\/","title":{"rendered":"Coolant and refrigerant: What\u2019s the difference?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Cars can be complicated, and it\u2019s easy to be confused about services and terms you hear when visiting an auto repair shop.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sometimes, drivers may mix up fluids found in a vehicle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Coolant and refrigerant are a couple of examples. These two fluids are used in different systems.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An automotive professional may mention \u201ccoolant\u201d when talking about a car\u2019s cooling system. This fluid helps prevent the engine from overheating.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Meanwhile, refrigerant is associated with the air conditioning system and keeps you feeling cool during those hot summer days.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How the cooling system and a\/c system work<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The cooling and a\/c systems both operate in a circle. However, the parts and process differ.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cooling systems feature a thermostat that acts like a door and remains closed until the engine block reaches a certain temperature. Then, it slowly opens. The water pump pushes coolant through the radiator. This fluid continues to travel into the heater core and back to the engine block.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As the thermostat opens up, more coolant is able to get into the radiator and keep the engine block at an even temperature.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On the a\/c system, you have a compressor that creates pressure. Pressurized lines go into the evaporator, which has larger tubes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When the refrigerant goes from a tight, high compression into a loose area, it gets very cold.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Like the thermostat, the expansion valve opens and closes based on temperature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After the refrigerant makes its way through the evaporator, it runs through the condenser, which sits next by the radiator. The air conditioning condenser turns the gas into a liquid. Then, the refrigerant goes back to the compressor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Looking for coolant and refrigerant leaks<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Leaks can occasionally occur in the air conditioning and cooling systems. When they do, we start our investigation with a visual inspection.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"763\" src=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-1024x763.jpg\" alt=\"Using ultraviolet dye to locate air conditioning leaks on an Acura TL.\" class=\"wp-image-2525\" srcset=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-1024x763.jpg 1024w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-300x224.jpg 300w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-768x572.jpg 768w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-1536x1145.jpg 1536w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-100x75.jpg 100w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-793x591.jpg 793w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL-1080x805.jpg 1080w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Air-conditioning-leaks-on-Acura-TL.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Using ultraviolet dye to locate air conditioning leaks on an Acura TL<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If <a href=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/five-possible-reasons-air-conditioning-isnt-working\/\"><strong>a\/c leaks are present and can\u2019t be located<\/strong><\/a>, our technicians receive help from a machine and ultraviolet dye. The a\/c machine enables them to confirm there is a leak through a vacuuming process. We inject dye and oil before recharging the a\/c system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The customer will then drive their car for a certain amount of time and return to the shop so we can find the dye. It\u2019s a good idea to bring it back after a week, even if the air conditioning system is still working. However, it could take months to spot the leak.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There is no tracer dye yet for 1234yf systems. In these cases, we inject the system with nitrogen and use a sniffer that smells gas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"769\" src=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-1024x769.jpg\" alt=\"Coolant leaking from heater hoses on an Infiniti M37.\" class=\"wp-image-2522\" srcset=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-1024x769.jpg 1024w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-300x225.jpg 300w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-768x577.jpg 768w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-1536x1154.jpg 1536w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-100x75.jpg 100w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-793x596.jpg 793w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37-1080x811.jpg 1080w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-leaking-on-Infiniti-M37.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Coolant leaking from heater hoses on an Infiniti M37<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">We can follow a couple of paths to track down coolant leaks. After looking the vehicle over, we pressurize the system using a coolant pressure tester. Two or three times of what the system\u2019s pressure would be is applied, prompting any external leaks to drip.\u00a0\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In cases where a system doesn\u2019t have any external leaks but is experiencing coolant loss, we\u2019ll look for coolant transferring into other systems. Different tests, such as a block test or hydrocarbon test, may be performed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Kinds of coolant and refrigerant<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are different types of coolant and refrigerant.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/coolant-fluid-exchange\/\"><strong>Engine metal and coolant requirements<\/strong><\/a><strong> <\/strong>differ between Asian vehicles and those made in the United States, for example. European cars also have a specific kind of coolant.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"586\" src=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-1024x586.jpg\" alt=\"R-134a air conditioning machine.\" class=\"wp-image-2523\" srcset=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-1024x586.jpg 1024w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-300x172.jpg 300w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-768x439.jpg 768w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-1536x878.jpg 1536w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-100x57.jpg 100w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-793x453.jpg 793w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia-1080x618.jpg 1080w, https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Working-on-car-ac-system-in-Woodbridge-Virginia.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">R-134a air conditioning machine.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">R-12 is the refrigerant needed on cars that were made before 1995 and 1996. After that, R-134a started to be used. R-1234yf can be found on more recent vehicles. More information about AC repair and maintenance can be found in <a href=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/car-ac-repair-maintenance\/\"><strong>this article we wrote<\/strong><\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Knowing the coolant and refrigerant your car takes could prevent damage and allow these systems to run as designed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HomeTowne Auto Repair &amp; Tire is an authorized Michelin and BFGoodrich tire dealer located near Lake Ridge, Virginia. Automotive repair services are performed on all makes and models, including oil changes, brakes, alignments, inspections, and computer engine diagnostics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cars can be complicated, and it\u2019s easy to be confused about services and terms you hear when visiting an auto repair shop. Sometimes, drivers may mix up fluids found in a vehicle. Coolant and refrigerant are a couple of examples. These two fluids are used in different systems.&nbsp; An automotive professional may mention \u201ccoolant\u201d when talking about a car\u2019s cooling &#8230;<\/p>\n","protected":false},"author":2,"featured_media":2521,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[989,951,994,572,266,990,662,168,225,993,992,991,548,136],"class_list":["post-2519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vehicle-fluids","tag-a-c-leaks","tag-a-c-system","tag-ac-repair","tag-air-conditioning-system","tag-coolant","tag-coolant-leaks","tag-cooling-system","tag-hometowne-auto-repair-and-tire","tag-prince-william-county","tag-r-12","tag-r-1234yf","tag-r-134a","tag-refrigerant","tag-woodbridge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Coolant and refrigerant: What\u2019s the difference?<\/title>\n<meta name=\"description\" content=\"Sometimes, drivers may mix up fluids found in a vehicle. 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These two fluids are used in different systems.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/coolant-and-refrigerant-whats-the-difference\/\" \/>\n<meta property=\"og:site_name\" content=\"HomeTowne Auto Repair and Tire Blog\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-05T17:16:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-05T17:16:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hometowneautorepairandtireofwoodbridge.com\/blog\/wp-content\/uploads\/2024\/09\/Coolant-vs.-Refrigerant.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"HomeTowne Auto Repair &amp; Tire\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"HomeTowne Auto Repair &amp; Tire\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/\"},\"author\":{\"name\":\"HomeTowne Auto Repair &amp; Tire\",\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/#\\\/schema\\\/person\\\/5f5b801206589b9b9ed17fcf3bcf5173\"},\"headline\":\"Coolant and refrigerant: What\u2019s the difference?\",\"datePublished\":\"2024-09-05T17:16:40+00:00\",\"dateModified\":\"2024-09-05T17:16:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/\"},\"wordCount\":692,\"image\":{\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/Coolant-vs.-Refrigerant.jpg\",\"keywords\":[\"a\\\/c leaks\",\"a\\\/c system\",\"ac repair\",\"air conditioning system\",\"coolant\",\"coolant leaks\",\"cooling system\",\"hometowne auto repair and tire\",\"prince william county\",\"R-12\",\"R-1234yf\",\"R-134a\",\"refrigerant\",\"woodbridge\"],\"articleSection\":[\"Vehicle Fluids\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/\",\"url\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/\",\"name\":\"Coolant and refrigerant: What\u2019s the difference?\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/coolant-and-refrigerant-whats-the-difference\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/Coolant-vs.-Refrigerant.jpg\",\"datePublished\":\"2024-09-05T17:16:40+00:00\",\"dateModified\":\"2024-09-05T17:16:42+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/hometowneautorepairandtireofwoodbridge.com\\\/blog\\\/#\\\/schema\\\/person\\\/5f5b801206589b9b9ed17fcf3bcf5173\"},\"description\":\"Sometimes, drivers may mix up fluids found in a vehicle. 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