Whatever the reason, mixing SCA's into the coolant by using anti freeze that contains Supplemental Coolant Additives is not recommended. Throw in a 12 volt battery grounding the engine and you have electrolysis. Most likely because the horizontal design of Subaru engines keeps the head gaskets always submerged in coolant. Subaru does not want these additives to be used on their engines. This means that it does not contain Supplemental Coolant Additives. The Subaru Super Coolant is an ASTM D-3306 anti freeze. Found a write-up from a forum that explains it nicely: Or more fairly, they finally realized they use crappy materials for their head gaskets, and instead of changing them, changed the coolant recipe they're using. This also may explain some of the head gasket failures that Subaru has long been known for. After further searching, this has to do with the additives found in most other coolants. I hope this is ok to post here, I just hit 70k in my 2012 Forester and called to make an appointment for a coolant flush and was told that in 2009 Subaru switched to what they are calling "Super Coolant" and as a result only need a flush at 10 years/120,000 miles. Will my husband divorce me if I dehydrate tomatoes in his F-150 truck?ĭennis Collins, a Highway Accident Investigator at the National Transportation Safety Board The wonderful and epic tale of Yoshi the Yarisįorget the trunk monkey, check out trash pandas. Trying to identify a car? Try /r/whatisthiscar, /r/namethatcar, or /r/rbi.įor information on content removal, user warnings, and bans, please see the Chain of Action page. Create a text post that includes the link and your thoughts on the subject matter.Ħ: Users will need to participate in threads created by others in /r/cars before being able to make their own threads.
The Radweld bottle bears a striking resemblance to the SUBARU cooling system conditioner bottle (except for the label)./r/Cars is the largest automotive enthusiast community on the Internet. So it would appear the SUBARU cooling system conditioner may be manufactured by Holts in the UK. However, even the casual observer cannot miss the "Holts" embossed on the blue plastic bottle. The bottle label states "Manufactured in England for Subaru of America, Inc.". Who manufactures the SUBARU cooling system conditioner? Similar products use ingredients such as ginger. Subaru says its good for 10 years but NOT if youve added anything BUT Subaru.
You can tell if you have it by seeing if you have the blue stuff in your coolant reservoir. I believe the linseed meal is what can be seen as the chunks in the product. New owners, or should I say owners of new Subarus, should be aware that starting with MY09, Subaru had been using their new 'Super Coolant'. What is in the SUBARU cooling system conditioner?Īccording to the product label, it contains a proprietary resin solution, borax decahydrate, and linseed meal. SUBARU vehicles starting around 2008-2009 started using the blue SUBARU super coolant. Now the caveat would be the statement might be valid only for SUBARU vehicles that used the traditional SUBARU coolant. Genuine Subaru Cooling System Conditioner has been tested and approved for aluminum engines and radiators. Whenever the coolant is changed, you must add Genuine Subaru Cooling System Conditioner. Moreover, SUBARU TSB 09-47-07 titled "Cooling System - Coolant Flushing Machines and Additives" stated: Fuji doesn’t approve of any aftermarket additive whatsoever, so why argue? Take four ounces of coolant out of the radiator, shake the bottle, then pour the contents directly into the radiator filler neck, not the overflow jug. You, too, should be using it every time you drain and refill a Subaru cooling system. An SUBARU cooling system article titled "Cooling System Overview" from May 2005, in a section discussing Genuine Subaru Cooling System Conditioner (Part Number SOA345001) added, stated:
The specific VIN ranges are as listed below:Ĭan I use the SUBARU cooling system conditioner even if my SUBARU isn't in the list above? 2000-2002 MY Subaru Legacy and Outback with 2.5L engine.Namely these included the following SUBARU vehicles (within a certain VIN range): What SUBARU vehicles require the cooling system conditioner?Ĭertain model SUBARU vehicles were listed in SUBARU bulletin WWP-99 were supposed to have the conditioner added. The SUBARU cooling system conditioner is a product intended to be added to the engine coolant when it is changed. What is the SUBARU Cooling System Conditioner?
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