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. The conditioner came on the scene specifically to aid the ailing early phase I EJ25, but now is used for all phases/engines in the line up. Most likely because the horizontal design of Subaru engines keeps the head gaskets always submerged in coolant. All dealers are required to use the additive with every coolant change in every Subaru. 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 Subaru SOA635071 OEM Coolant System Conditioner Brand: Subaru 997 ratings Subaru OEM Coolant System Conditioner See more product details Customers who viewed this item also viewed of 1 Start over EPAuto Spill Proof Radiator Coolant Filling Funnel Kit 13,934 4 offers from 34. 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. -Basics of swapping engines/layouts/transmissions/bodiesĢ: Direct image and video links are not allowed.One Million subscribers! WooHoo! Autos Network Subreddit List Follow us > /r/Cars Wiki
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