2JZGTZ

I am doing a coolant flush. I just need to know which exact coolant to use. The book says to use ethylene glycol coolant and not the alcohol one. When I flushed it the coolant was orange which I assumed was rust but I think that the original coolant may have been pink or orange. So I’m not sure if I can use green or not

joewitafro

I wouldn't use green in our systems. Toyota used red back then, which probably turned orange over time. Nowadays they run pink. You can run either red (concentrate) or pink (50/50 premixed) from toyota. Pick it up at any toyota dealership. I recommend buying 1 gallon of toyota red (part # 00272-1LLAC-01) and 2 gallons of distilled water from your local drug store/riteaid/walgreens

RyanV9

I believe Aisin ACT002 is the same as the Toyota branded stuff (red) and you can often find it cheaper It's also premixed.

joewitafro

That Aisin ACT002 is the same price as the toyota red, but you'll need 3 gallons of the premixed which makes it cost 3x as much. Or you can buy 1 gallon of red concentrate for 15-20 bucks and spend 2-3 dollars on 2 gallons of distilled water and you've saved yourself tons of money. Just my advice!

2JZGTZ

I keep flushing the system out with distilled water and a prestone radiator flush+cleaner and it still keeps coming out brown after 4-5 flushes should I keep flushing it or is there something I need to replace? The car never overheats and the heat gets super hot. I just want to flush it so that it’s entirely clean and so that I can finally put in antifreeze before it starts dropping down to 32° over where I reside.

joewitafro

4-5 flushes is probably quite more than even shops would do, usually only doing one or two chemical flushes for clogged heater cores. I say that you should flush it with just distilled water once more to get any of the prestone cleaner out, and fill it up with 1 gallon of Toyota red # 00272-1LLAC-01 and 2 gallons of distilled and make sure to use a funnel kit like the Lisle #24680 which helps get air bubbles out of the these systems by raising the coolant point 6-8" above the motor/heater core. You should be good to go for the winter after that. Although I believe mixing the red 50/50 with distilled would prove protection to -30 °F. I've always done 33/66 for down to +20°F with no issues.

2JZGTZ

I thought that too but I’m not worried about bleeding the air out of the system I’m more worried about properly cleaning it out before I add antifreeze cause every time i flush it I bleed the air out no problem it never over heats and the heat works good (it comes out super hot) the water keeps coming out brownish/orangeish I’m not too sure but I think someone may have accidentally put green coolant in my car before I had it not knowing it needed pink

joewitafro

Yeah its hard to say how many times you would have to repeat that to make it clear. But I imagine the more of that crud you get out the better as that is what clogs your heater core.