Royal Purple saved my relationship by reducing the amount of friction and even saved my neighbor's marriage!
Royal Purple got beat down badly, it doesn't look good for Royal Purple's defense;
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BP Lubricants said it hired the independent laboratory Southwest Research Institute, in San Antonio, to analyze power output of gasoline engines with Royal Purple Oil and with BP’s Castrol oil for comparisons. “The results were provided to the challenger’s expert statistician who was not informed of the identity of the candidate oils,” NAD stated. “The challenger’s [BP’s] expert determined a 0.9 percent difference in power between the oils, which did not rise to the level of statistical significance, and is well below the 3 percent claim made by the advertiser.”
Ooops
Quote:
SwRI did additional tests to independently determine the differences in fuel economy, emissions data and engine temperature between Royal Purple and Castrol motor oils. According to SwRI, “there was no statistically significant difference between the fuel economy, emissions data or engine temperature between the two candidate oils,”
Ooops
Quote:
“Reduces emissions up to 20 percent or more” and “Reductions in emissions of 20 percent or more” because the studies on which the claims were based were outdated and not consumer-relevant.
Ooops
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In fact, no Royal Purple products are certified to current ILSAC specifications.
Ooops
I'm sure Royal Purple has a slam dunk defense? not.
I have nothing against Royal Purple personally, I've always felt their product is ridiculously overpriced when comparable brands are out there for less, but this is bad business karma catching up with them. Probably a strong reflection of the people running that company. Set out to deceive people and you will pay the piper.
Again, not scientific in any way, but heres my story of using RP.
I bought a JDM engine in 2006. Didnt take it apart, didnt check ANYTHING out, didnt even remove a valve cover, just dropped it in and ran it. Ran it HARD for about 12k miles. Now the rings are starting to go and I tore it down to rebuild it. I have run RP 10w40 in this engine since the day I put the engine in the car (aside from the dyno oil I ran for the first 50mi to wash out any crud). Upon taking the engine apart, I have found it to be the cleanest engine I have EVER taken apart. It really is amazing how clean this thing is considering it was a JDM import. Now, again, I could have just gotten really damn lucky, and the RP could have had jack shit to do with how clean it is, but I personally like what I see.
Heres a couple pics I took to show you what I mean.
Chris
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TX07 - 1st Place Most NA WHP
NG08 - 1st Place AutoX FWD Stock
TX08 - 1st Place Quickest NA
TX08 - 1st Place Highest HP NA
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TX09 - 1st Place Highest HP NA
10/24/2009 - 220WHP 222WTQ (6g74, 93.5mm bore, ported heads, stock 3L cams, open DP )
02/17/2007 - 14.700 @ 96.1mph (3.5 with everything else stock at the time)
03/22/2008 - 14.644 @ 94.48 (drag radials, 3.5 on crappy tune with upgraded fuel system)
lifter tick depends on oil thickness and not brand. my lifter tick went away with valvoline 10w40 and castrol 20w50. its was there with mobile1 and castrol 10w30 so brand has little to nothing to do with lifter tick (IMHO)
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E85 powered VR4 since 09/2006
For Sale: stock SMICs, springs.
Again, not scientific in any way, but heres my story of using RP.
I bought a JDM engine in 2006. Didnt take it apart, didnt check ANYTHING out, didnt even remove a valve cover, just dropped it in and ran it. Ran it HARD for about 12k miles. Now the rings are starting to go and I tore it down to rebuild it. I have run RP 10w40 in this engine since the day I put the engine in the car (aside from the dyno oil I ran for the first 50mi to wash out any crud). Upon taking the engine apart, I have found it to be the cleanest engine I have EVER taken apart. It really is amazing how clean this thing is considering it was a JDM import. Now, again, I could have just gotten really damn lucky, and the RP could have had jack shit to do with how clean it is, but I personally like what I see.
Heres a couple pics I took to show you what I mean.
Chris
Could've been the RP or could've just been luck. I have seen a few people tear down their JDM engines only to find that they were ridiculously clean. Not all of them have been shit on - there's always that diamond in the rough to be had.
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Walbro 255, 450CC injectors, S-AFC, 300M output shaft, SPEC II clutch, RPS flywheel, ATR single shot exhaust, ATR downpipe, saner sway bars, PRM 3 pt strut bar, Greddy Type-S BOV, stillen cross drilled rotors, stillen brake pads, koyo rad
Oh shit I work in Wayne N.J. lolololol!!!!!!!!!!!!
my friend runs R.P. in his saturn and its the only oil that doesn't burn hardcore in his engine. I cant wait to tell him that his claims on how great R.P. are are total poo
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1993 Dodge Stealth ES - 15.2 @ 92.4mph - September 2008 ROTM 1992 Mitsubishi 3000GT VR4 -13.3@104.9mph @ 14PSI - June 2009 ROTM
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Well I guess after reading this thread it doesn't much matter what their claims are as long as it performs. And from what everyone has responded with, R.P. works pretty damn well. I got an oil change coming up in about 100 miles, and I'm thinking R.P. is the way to go now.
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