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Author
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Topic: Royal Purple
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Sisky Wolf
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Member # 350
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posted
 
 
Your opinion on OEM royal Purple Synthetic Oil.
Running break in oil on 3rd new motor..ready to change oil..have heard some good things about RP..normally run Mobil -1
Thanks
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515 rwhp on 91 octane/554 rwhp on 98 octane
Posts: 43 | From: Manteca,Ca. | Registered: Jul 2001
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Stimson
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Member # 51
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posted
Don't run synthetic oil on a new motor for at least several thousand miles.
Posts: 2373 | Registered: Jun 2000
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mustangcam302
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Member # 2315
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posted
why not??Not tryin to make an agruement on it but just currious why u think you shouldnt run synthetic on a new motor?
Posts: 163 | From: San Diego CA | Registered: Jan 2003
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
If i'm not mistaken ...Syntetics dont let the bearings and rings wear-in correctly........But on the other hand, why do Porsche's and Corvettes come from the factory with "Mobil 1" ![[Confused]](confused.gif)
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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Stimson
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Member # 51
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posted
Black94 5.0 is correct, talk to your engine builder, they'll all recomend against it. I also have personal reasons as why high end oil shouldn't be used on a street car unless the manufacturer recomends it (Vettes, Porches, ect)
Posts: 2373 | Registered: Jun 2000
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Kevin99GT
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Member # 272
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posted
http://www.svtperformance.com/forums/showthread.php?threadid=28465&referrerid=4022
I'd stay away from Royal Purple. They have a small niche audience of enthusiasts, but otherwise are pretty quiet about their ingredients, which makes people rightfully skeptical about their products. Read that thread above and any other thread from the guy who started it -- he's a certified expert in that kinda crap and knows his shiz.
I'd stick with Amsoil. It's more expensive than others, but the drain intervals are WAY longer and totally reliable (they recommend their true synthetics for something like 25,000 miles between drains. Their cheapy shiz they recommend to 7,500 miles, and their cheapy shiz is the equivalent of what most other companies, like Castrol, sell as their top-end stuff).
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• 2003 Honda Accord EX V6
• 2000 Suzuki SV650
• 1999 Chrome Yellow Mustang GT - SOLD
Posts: 185 | From: San Rafael, CA | Registered: May 2001
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mustangcam302
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Member # 2315
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posted
quote:
Originally posted by Black94 5.0:
If i'm not mistaken ...Syntetics dont let the bearings and rings wear-in correctly........But on the other hand, why do Porsche's and Corvettes come from the factory with "Mobil 1"
This is the exact reason why i was askin, i have asked many a person on which is best and which isnt, and on a lot of things it usually comes down to the opinon of the owner. We had many discussions on this one in Hot Rod U over in UTI, what seems to be the answer IMHO is to do the break in with normal oil, then swap to syntetic after oil change.
Posts: 163 | From: San Diego CA | Registered: Jan 2003
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VortechSaleen
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Member # 316
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posted
Here's another weird one...my Saleen manual specifically says to switch to synthetic after 500 miles. And yet it was still purchased just an N/A S281.
Posts: 837 | From: San Jose, CA | Registered: Jun 2001
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CobramanPhil
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Member # 2170
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posted
I think corvettes and porsches run synthetics is due to the tighter tolerances of the motors. Rings are mostly sealed as compared to your average push rod 5.0 motor (I imagine that the modular motors can switch to synthetics a lot earlier than the older 5.0 based motors). Like someone said above, check with your engine builder. If I were you..I would just run regular oil for the first 5000 miles or so...nothing wrong with that. The most important factor is to make sure you have clean oil and a clean filter. I'd say run regular oil for the first 250 on the new motor (check for metal flake at that point and cut the filter apart). Change the oil and filter. Run the motor for another 2500 miles and then change the oil and filter again. Then when you pull another 3000 or so..change again. Then (finally!) after another 3000 miles change to synthetic with a new filter. ![[Cool]](cool.gif)
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2013 Shelby GT500
2011 Porsche 911 TurboS/AWD
2014 GSXR750
2002 GSXR750 Track Beater Bike
2016 Explorer Unlimted
Posts: 1016 | From: California, Bay Area | Registered: Dec 2002
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