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. -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 However, we encourage you to explore other online platforms. We try to be a helpful discussion-driven community while maintaining high-quality discourse and topical content. Coolant will consistently leak out when the engine is running. Sediment or rust will be effortless in the coolant. We're Reddit's central hub for vehicle-related discussion, industry news, reviews, projects, DIY guides, advice, stories, and more. Common symptoms that your 2015 Subaru Forester needs a coolant flush are: Your temperature gauge will read well above essential with the engine on for copious minutes. r/Cars is the largest automotive enthusiast community on the Internet.
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