![]() ![]() I'm pretty sure that Prestone has phosphate in it (like the Toyo) cause they claim that its safe for aluminum coolant passages. Not sure if Prestone uses an OAT, or HOAT like Dex-Cool. I know that Toyota uses sodium benzoate as their OAT additive and there's no borate in Toyo Red. I'm not exactly clear on the anti-corrosion compounds in Prestone. perhaps I'll shop around for some cheap Toyota Long life. never run a long life coolant on a 60's or 70s muscle car.Will a 95 corolla also respond poorly to Toyota Red? What does "respond poorly" mean in this case? I know that older cars respond very poorly to newer coolants - ie. Borates eat up some aluminum alloys, I know that Toyota explicitly says it is borate and silicate free. Some of the newer long life coolants from other makes are phosphate-free and silicate-free and use organic acid technology - all good, but some engines like borate-free coolant as well (not always the case with long life coolants). The one time I ran a flushing agent and plain water (Camry) - no deposits came out - water was clear on the Toyota Red. Coolant drains and refills come every 60K for me - I don't even have to back flush the system (always used distilled water). That fact that you are worried about something going bad by running something else, means that you should stick with what works and not switch. never run a long life coolant on a 60's or 70s muscle car. Cost is not that much more than other long life stuff - spread the cost over a period of time and it really is just peanuts. I've never gotten it with the Toyo Red stuff - so I switched. I too was a big Prestone fan - on my Honda and Camry, but I always get some deposits that comes out after I flush the system. If you ask - they usually will lower the price - but that also depends on the dealership. They have several pricing tiers - MSRP / cash customer / dealer cost. I usually pick up a few gallons at the dealership for ~ $12 a gallon. I know Karate, Kung Fu, and 47 other dangerous words (9,744 posts) If I'm not using Toyota Red, I'd think about Amsoil's 7-year PG stuff. Yes you can use a garden hose to flush the cooling system using a flush kit easily available from parts stores. I've put Peak Global LifeTime last year, which they guarantee for the life of the carĪs long as you flush the cooling system before you put it in. but if there's a better alternative to Toyota long life AND its cheaper then I'm all for it.Īlso, Haynes is a little ambiguous on the topic but is there a way to back-flush the cooling system on a 1ZZ-FE using a garden hose? I'm mainly concerned with developing coolant leaks (through oxidation and degradation of seals) and I don't want to have white smoke coming out of my tailpipe or a dead waterpump anytime soon. Also, I've gotten second opinions from other owners of high-mileage late model Toyotas who say that Prestone Long life coolant is 100% compatible with their vehicles and actually lasts longer than Toyota Long life (as measured by the coolant gauge). I know that Toyota recommends using their silicate-free long-life engine coolant (red colored) but this stuff is really expensive the dealership. For my project Aurion, I retained the original filter/strainer even though I have transmission kits on hand.I'm coming up on a coolant flush and change for my 01 Corolla. Planning upon refitting this original filter/strainer, eventually. At the time, I did replace the transmission filter with an aftermarket one but fortunately I did retain the original part. There is a bit of a debate about whether the original Toyota transmission filter needs to be replaced. There are also magnets on the bottom of the transmission pan and a noticeable difference in the built up deposit on them. 109,000 km odometer reading, the sediment layer was quite thin and easily wiped away. In comparison, when I did the transmission service on my project 2008 Aurion with approx. When I did the transmission service, I also removed the transmission pan which had a thick layer of "sediment" that you could draw in with your finger. I did a fair bit of internet research and discovered that the transmission will eventually fail if not serviced. In 2016, I bought my used 2006 Aurion ATX, it had approx. I would make that transmission service an urgent HIGH priority. ![]()
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