So, what mixed with red makes purple? Blue. Yet, to get different shades of purple, you can add different colors...like brown maybe?
Since purple is closer to red on the color spectrum, it means that something is mixing with the red to create purple...depending on the shade, maybe rusty brown?
Where would you get a rusty brown....rusty metal due to water in the ATF?
Here's a reply from a forum where a driver said his ATF was purple.
"was the vehicle sitting for extended period of time and not ran periodically. ATF, some can collect water(hygro) the rust particles could be just that, "rust like debris on my dipstick" as you said. High moisture level areas such as near the coastal beach regions(i live 2 blocks off the beach in NJ) can form water droplets that can bind at the molecular level with these chemicals and additives and also form suspensions....(water droplets) on the dipstick and now you see rust particles, especially if the vehicle is sitting for those long periods of time. My rav's are daily driven, my dodge dakota(18 yrs old) is only driven 1 day a week, sometimes it sits longer and i get those small rust parts up higher on dipstick, near the top pull cap. I use synthetic atf in the truck, so its a non-hygro type. Nothing to worry, drain the trans-pan 4.5 qts will pour out...drop pan and change filter and refill with WS atf fluid."
Interesting.
Oh, also, the amount and type (warm vs cool) of light, the background, etc., can also cause how our eye sees the color.
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Steve
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