At the second, you are pretty much assured that whatever had been in there was thoroughly diluted by the first lifetime change, and the second is "close enough to pure," that it can be treated as true lifetime. When I'm doing a conversion to lifetime coolant, I do an initial change, then one between five and seven years later, as I do not try to flush in most cases and you do have residual coolant at places in the system with the first change. The issue with anti-corrosion chemistry "wearing out" was solved in commercial applications some years ago, and it has been carried over now to the automotive side of things by Peak (and a couple of others, but since I don't use them I can't remember who right now). My absolute favorite currently available coolant, for any car, is Peak Global Lifetime. You are correct that the anti-corrosion properties are what peter out, and that is why old "classic green" antifreeze had to be changed every 2 years, because anti-corrosion chemistry wore out over that period.Īnd I am, and will continue to be, a contrarian when it comes to "the right" coolant. The antifreeze/antiboil properties of ethelene glycol at or very near the 50/50 level are for all practical intents and purposes perpetual. I read tons about "do not mix green and orange", "do not mix two different colors" as well as tons of "does not matter."Ĭlick to expand.That is absolutely incorrect. So, question, can I just open the engine coolant reservoir and add my Prestone for All vehicles up to the F line when the engine is cold? Is that it? I don't know what color Prestone for All Vehicles is. The color of the fluid in the reservoir is pink. This time the level of fluid was kind of in the middle between F and L. The level of the fluid in my engine coolant reservoir was a little below L when the engine was cold (I had not driven it for 4 days before I checked it.) Then, I drove it like 15 miles and checked it again when the engine was hot. 317 and it shows how to add coolant in p.325) I am sharing this information because I want to make sure I am looking at the right thing? I am "completely" new to cars as I said. I looked at the engine coolant reservoir by following the manual: (item number 11 in p. I went to Walmart and bought a bottle of Prestone Coolant for All Vehicles 50/50. Someone told me to look at the coolant and add if necessary. The only thing that has been done is oil change. I drove it around 10k miles since I bought it. I looked it up online but there are different ideas and most of the posts are old. RECOMMENDED CHANGE INTERVAL: 250,000 km* or 5 years service protectionĬOOLANT COMPATIBILITY: For best results, do not mix with conventional high pH, borate or silicate based coolants.I am completely new to cars. MEETS OR EXEEDS PERFORMANCE REQUIREMENTS OF: ASTM D3306 JIS K2234 PERFORMANCE FEATURE: Aluminum compatible. For best results, do not mix with conventional high pH, borate or silicate based antifreeze/coolant.ĪPPLICATION: Automotive and light duty vehicles requiring a phosphate based OAT engine coolant.įORMULATION FEATURES: Silicate, borate, nitrite & amine free. *When added as an initial fill and properly maintained in accordance with engine manufacturer’s maintenance recommendations this coolant provides up to 250,000 kms or 5 years of service life protection in automotive applications. The superior performance of this long service life product allows it to go on working well beyond the lifetime of traditional products. This ethylene glycol based antifreeze/coolant uses Hybrid Organic Acid Technology (HOAT) to provide extended protection against rust, corrosion and pitting caused by cavitation for all coolant system metals, including aluminum. It is recommended for use in Toyota, Scion, Lexus and other automotive and light duty vehicles requiring a phosphate based OAT engine coolant. OEM Premium Extended Life Antifreeze/Coolant meets or exceeds performance requirements ASTM D3306 and JIS K2234. OEM Premium Engine Coolant Selection Guide.
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