Why is royal purple... purple??

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1. Royal Purple
1. Redline
3. Amsoil
4. Mobil 1

I would say it is even between RP and RL.
However, if you do a lot of driving below 2000rpm, Castrol would perform just as well
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It seems that many people around here fits in that category
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quote:

Originally posted by Big Jim:
You guys are really making me feel old. Am I the only one that remembers Union 76's purple oil?

Well I'm 58 and don't remember it, but there's a lot I don't remember......
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Was Union Oil primarily west coast?
I do remember Arco "Graphite" which was as black as well used diesel oil - nasty stuff to clean off your hands.
 
Well, Javaman, I was over at Royal Purple's Website and it says they were founded in 1986. There is a chance they had a pretty good choice of colors.
 
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