From what I've read Royal Purple has had quality control issues, but it is a Type IV oil, better than castrol or mobile 1 which are type III (not truly "synthetic:. I use Royal Purple in my scooter and it made a huge difference.
Quote:
Originally Posted by 07WYarisRS
You can order Amsoil online or I can put you in touch with my Amsoil guy and either he can ship it to you or know of someone or another place to order Amsoil from. Redline is also An excellent lubricant. Royal purple is decent but has had quality control issues in the past that I have seen first had with lab test results. Things like high copper levels, water and even grades being off. I would stick with Amsoil or Redline.
The rest like Mobil 1, Castrol Syntec, Motul, Qstate, pennzoil synthetics etc are all just highly refined crude/mineral based oil. IMO not worth the prices they charge
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04-05-2007, 05:13 PM
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