You can get either premixed or concentrate from Toyota I'm lazy so went premixed as the water quality here isn't that great and I couldn't be bothered buying distilled water and mixing! ;)
You can buy Red from auto parts stores and I suspect it would be much cheaper than Toyota!
I did a bunch of research after seeing the condition of my block as stupidly on my part I 'believed" Red and Green were chemically the same and these days it was only the colour that was different!
After a few hours searching and reading I found that yes there is a difference with most...
I had to pull the motor down after getting a BHG on the dyno at 30 psi....
I was using green safe for alloy heads coolant and after seeing the results I won't use it again.
Each pump will have a non return valve in it but they don't always seal perfectly.
I'd install solenoid valves in each fuel line efter each pump and each return line.
Took the head off and looked ;)!
Errosion looks a little different to corrosion and I suspect it's the chemical reaction between the head/block/coolant that caused it :(
Drew: WW doesn't hurt.
Fig: It was errroded and MUCH more than I'd expect on a brand new head and block!
I switched over to Toyota Red last build so will see how it looks sometime in the future.
one piece wing was optional from 86.5 to 88 I believe!
(my car in an original Aussie delivery NA and has the wing)
Jeff will be a lot more accurate on dates.
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