Same here. I didn’t know there was anything other than the original.Never knew there were 3 of them! Wow. I wonder why one of them is purple not green? Wonder which will work best in my ultrasonic cleaner
For me I'm wondering if I would get better performance for cleaning/degreasing mixer parts, small engine parts and my "noise makers"Are you talking for a general degreaser, or for a specific piece? For the cooked on gunk the members mark brand grill and oven cleaner is awesome. Don’t recommend using that or easy-off on aluminum.
I’m also a fan of Zep 505, but the OG simple green smells so good lol
I use the green with yellow jug version of simple green.
I also have a jug of zep industrial purple degreaser that I use for automotive work.
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And it has clear warning of "Not for use on" ...
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I plan to see how Zep purple works on stainless steel grates but have yet to try it.