Royal purple and increased horsepower

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People apparantly do realize that these HP gain claims after these tests are being made by people not working for RP. For example Horsepower TV. RP is just using what they claim they got for results. I haven't seen anything directly from RP where they did the testing and made these claims. Just using what is out there.

Some of the sources behind the claims I have seen are pretty reputable. HP TV would not try and fool people by using cold dino 20W-50 and then 5W-30 RP. Come on people.
 
...but they do list Royal Purple as a "Preferred Partner."
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http://www.powerblocktv.com/site3/index.php/preferred-partners
 
Seeing RP's Maxgear and MTL's inability to hold up in my Ranger I sure wouldn't trust any of their products in any high horsepower setups or any vehicle period.. just IMO.
 
RP must work well, one of the best Ford engine builders in Hot Rod Magazine used it in his dyno of a big block build.

But it was straight 10W!

I might not be willing to run that on the street.

It's all promo hype.
 
Originally Posted By: ARCOgraphite
Ive had the best high rpm, wide open throttle power with RP 5w30 street oil. But I dumped it BC I didnt like the way the car ran in normal driving. The yaris has very sensitive VVTI system. I have castrol syntec in there now, and that has good power - though i had to add 1 pint of 10w40 syntec to get the VVTi working in the sweet-spot. When its working right, it feels like a low pressure turbo. I say viscoisty customisation using your fav brand of syn is the way to go. Europeans do it all the time - and play with their oil too
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Try the Mobil-1 0W-30 afe (Green Cap)that`ll get the vvt workin good...
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At least it sure works in my RX.
 
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Originally Posted By: d00df00d
Originally Posted By: NHHEMI
SO?

So... they may be biased in their test.


You really need a life. ANY company testing any product that comes from a sponsor MAY be biased.
 
Originally Posted By: NHHEMI
You really need a life. ANY company testing any product that comes from a sponsor MAY be biased.

I wouldn't say "may", I would say "probably is." But I agree, and they all deserve the same skepticism. The fact that all of them do it doesn't make it right.
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By the way, how is skepticism of a manufacturer's claims mutually exclusive with having a life? I can't speak for you but it doesn't exactly require a huge chunk of my time and effort to plug a couple of terms into Google and think "hmm, maybe something else is going on here."
 
Arco - Micro managing slight oil viscosity differences will not affect your variable valve timing system.

With extreme cold and y thick oil, yes. Otherwise, no.
This is because of the electronic feedback and control of the system, it's not exclusively pressure controlled.

Perception is another thing.
 
I would "guess" in RP's case, it's from the VII shearing down. A lower viscosity oil should produce more viscosity than a thicker grade. If their claims are even true at all. You have to think of tradoffs when you're talking about oils.

Friction modification plays a role too. However, hp claims I read about on the internet I don't take too seriously.
 
My experience - I was getting 27.7 mpg average using Syntec 5w-40. Switched to RP 15w-40, which is a thicker oil when hot and cold, and my average went to 28.1 mpg.
 
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Originally Posted By: lexus114


Try the Mobil-1 0W-30 afe (Green Cap)that`ll get the vvt workin good...
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At least it sure works in my RX.
I got that on deck for winter - couldnt resist the 10 buck off deal and 22 bucks a 5 qt jug. Looks like Mobil put some new fangled moly in there too. I hate too continually swap brands - must have some drawback. My wife aint getting the M1 green cap though; she never pays me for an oil change ;(
 
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Originally Posted By: mechtech2
Arco - Micro managing slight oil viscosity differences will not affect your variable valve timing system.

With extreme cold and y thick oil, yes. Otherwise, no.
This is because of the electronic feedback and control of the system, it's not exclusively pressure controlled.

Perception is another thing.
I understand the system, but my perception is correct - it isnt a subtle torque difference. There is something else going on here - I am also using a 2azfe filter on the 1nzfe (wix). Why is there a Toyota TSB on reprogramming the VVTi if your running 5w20 (down from 5w30)?
 
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