Royal Purple Synthetic Oil

live4swell

live4swell

Member
Anyone out there use this? I have read that its pretty good. I actually saw it in use on a show Horsepower TV where they changed the gear and engine oil in a Camaro with this oil and they gained about 10 HP. Overall it seems like a really good synthetic. Just wanted to see if anyone has any more info on it. Thanks
 
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live4swell said:
Anyone out there use this? I have read that its pretty good. I actually saw it in use on a show Horsepower TV where they changed the gear and engine oil in a Camaro with this oil and they gained about 10 HP. Overall it seems like a really good synthetic. Just wanted to see if anyone has any more info on it. Thanks
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I use the Racing 21 in my Vette and will use the same in my new 4Runner. I only have 650 miles on the Runner so far, so I haven't made the switch yet. I did my first oil change at 542 miles and will be dropping a sample in the mail tomorrow for a used oil analysis at Blackstone Labs. Racing 21 has held up very well for me in the Vette, open track events and all. I can't wait until I can start using it in the Runner.

An important point to note is that RP's 'Racing' oils are not API certified so you could have warranty issues if you had engine problems and the dealer knew you were using it.
 
Larry said:
405HP_Z06, what viscosity are you using?
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The Racing 21 is ~5w-30. I did a virgin oil analyis and as far as viscosity, it's on the high end of 30w close to 40w. I'm switching to Racing 41 for the Z06, so I'll use the 5 gallons of 21 that I have for the Runner.
 
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