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Royal Purple 5w-20 High Performance Motor Oil #4446535
07/01/17 08:01 AM
07/01/17 08:01 AM
Joined: Apr 2007
Posts: 24
Fenton, MO
GTJohn Offline OP
GTJohn  Offline OP
Joined: Apr 2007
Posts: 24
Fenton, MO
Is RP too slippery?
I have read that RP has made some changes to their oil recipe and some folks are experiencing oil usage.

I have been using RP for many years and have noticed oil usage of about a 1/2 quart ever 2k miles.

A friend of mine owns a hot rod shop and owns a late model Mustang, he said he had to quit using RP because it was too slippery
and was getting past the rings on the piston. He doesn't sell or use RP any more and has switched over to Amsoil.

Just asking if other folks out there that may be experiencing oil usage when using RP.

This is not a slam on RP.

Thanks
John

Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4446538
07/01/17 08:10 AM
07/01/17 08:10 AM
Joined: Dec 2011
Posts: 5,105
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 5,105
North Carolina
I don't know about "too slippery," but my S2000 consumed Royal Purple - not Mobil 1 or Castrol.


"Zed's dead baby, Zed's dead."
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: rooflessVW] #4446541
07/01/17 08:23 AM
07/01/17 08:23 AM
Joined: Apr 2007
Posts: 24
Fenton, MO
GTJohn Offline OP
GTJohn  Offline OP
Joined: Apr 2007
Posts: 24
Fenton, MO
Originally Posted By: rooflessVW
I don't know about "too slippery," but my S2000 consumed Royal Purple - not Mobil 1 or Castrol.


Thanks for the reply. smile

Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4446566
07/01/17 08:53 AM
07/01/17 08:53 AM
Joined: Jun 2016
Posts: 3,566
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 3,566
MN
Ring sealing is just a simple function of viscosity. Assuming a mechanically sound engine of course.
"Slippery" implies friction characteristics, which would have zero effect on ring sealing.
Could be extra volatile basestocks are increasing oil consumption, or the particular blend of light vs. heavy basestock oil RP chose to blend.

Re: Royal Purple 5w-20 High Performance Motor Oil [Re: oil_film_movies] #4446631
07/01/17 10:55 AM
07/01/17 10:55 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Originally Posted By: oil_film_movies
Ring sealing is just a simple function of viscosity. Assuming a mechanically sound engine of course.
"Slippery" implies friction characteristics, which would have zero effect on ring sealing.
Could be extra volatile basestocks are increasing oil consumption, or the particular blend of light vs. heavy basestock oil RP chose to blend.


My thought also; many engines show consumption with 20 grade oils, and often fix the issue with a 30 grade.


Thick vs Thin test: 15k / 43k miles complete
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4447019
07/01/17 08:01 PM
07/01/17 08:01 PM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
The new formula is probably a bit thinner


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4448124
07/03/17 07:56 AM
07/03/17 07:56 AM
Joined: Feb 2007
Posts: 8,180
Grand Rapids, MI
ThirdeYe Offline
ThirdeYe  Offline
Joined: Feb 2007
Posts: 8,180
Grand Rapids, MI
I never experienced anything out of the norm with Royal Purple. I used their 0W-20 in my old Scion tC and it consumed no more than Mobil 1 0W-20 did in the same car. I've also used their 5W-20 HPS in my girlfriend's old Civic and it didn't consume anything in that car. I used it in her Celica and it did consume a bit, but I assume that's because we went from using a 5W-30 that consumed nothing to a 5W-20. It went back to normal after going back to 5W-30.


07 Honda Accord - 608k - Havoline High Mileage 5W-20/Purolator Synthetic PSL14610
98 Camaro Z28 (Bright Purple Metallic, 1 of 104) - 122k - QS Defy 5w30/AC Delco PF46
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4448192
07/03/17 09:19 AM
07/03/17 09:19 AM
Joined: Jun 2005
Posts: 3,446
Massachusetts
deven Offline
deven  Offline
Joined: Jun 2005
Posts: 3,446
Massachusetts
My old Audi A6 was consuming oil at a rate of 1 quart every 3000 miles. I tried Castrol, Mobil 1 and Redline synthetic oil of the same weight(5w30) and they all consumed at the same rate. If you google Royal Purple oil consumption you'd be hard pressed to find many hits. If Royal Purple had consumption issues you'd see tons of people complaining on the internet.


Proud user of ROYAL PURPLE products!

2016 Acura RLX Sports Hybrid(Royal Purple HPS 5w30 + M1-110 oil filter)

KEEP IT SIMPLE STUPID. IT'S ONLY OIL
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4448340
07/03/17 12:10 PM
07/03/17 12:10 PM
Joined: Jan 2016
Posts: 849
NC
Vladiator Offline
Vladiator  Offline
Joined: Jan 2016
Posts: 849
NC
In my previous 7 vehicles, once I tried Royal Purple - the consumption went up. Usually just doubled over normal consumption. Only Royal Purple HMX 5w30 actually stopped oil consumption in one engine, that recommended 5w30 on the oil cap. My current vehicle haven't tried Royal Purple yet, but something (possibly previous experiences in the past 5 years) tells me that it will increase oil consumption, even though currently I have zero oil consumption.

Re: Royal Purple 5w-20 High Performance Motor Oil [Re: deven] #4448634
07/03/17 05:50 PM
07/03/17 05:50 PM
Joined: Dec 2009
Posts: 26,231
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 26,231
Regina, Saskatchewan, Canada
Originally Posted By: deven
My old Audi A6 was consuming oil at a rate of 1 quart every 3000 miles. I tried Castrol, Mobil 1 and Redline synthetic oil of the same weight(5w30) and they all consumed at the same rate. If you google Royal Purple oil consumption you'd be hard pressed to find many hits. If Royal Purple had consumption issues you'd see tons of people complaining on the internet.

When I used RP 0w-40 in my Audi, it had no measurable consumption over the OCI. Now, with M1 5w-30, that was another matter altogether. wink Pennzoil 10w-30, it didn't drink it, either. It was picky, I guess.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4448656
07/03/17 06:12 PM
07/03/17 06:12 PM
Joined: Apr 2007
Posts: 24
Fenton, MO
GTJohn Offline OP
GTJohn  Offline OP
Joined: Apr 2007
Posts: 24
Fenton, MO
Thanks for all the comments.

Maybe a little information may help

I have a 2005 Mustang GT. 300rwhp and 305 lbs. torque at the wheels. Naturally aspirated.
I have an oil separator between the PCV and the intake. The separator usually, when drained about every 2 months, has about 2 to 3 oz. of oil in it.

When I purchased the car it had 2200 miles on it. I first began using Mobile 1 and then later switched to RP 5w-20. Have been using RP for about 10 years.

Would it really disturb anything to use RP 10w 30 to top off when needed to see if this stops the oil usage.

Thanks

John

Last edited by GTJohn; 07/03/17 06:20 PM.
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4448676
07/03/17 06:27 PM
07/03/17 06:27 PM
Joined: Jul 2011
Posts: 340
San Diego, CA
Joenpb Offline
Joenpb  Offline
Joined: Jul 2011
Posts: 340
San Diego, CA
I have a 2014 Mustang GT and also had a 2011. I also use a JLT Catch Can or Oil Separator connected to the PCV. I would probably buy an extra quart of RP as opposed to changing oil weight. Or try a few more brands/formulas. I'd be worried about perhaps less oil flow and spray in the engine. I've been using Pennzoil Ultra Platinum, and it has about the same amount of blow by you described. I found some Mobile 1 Extended Performance for a good price, and will be using that next OC.

I'll send the Pennzoil for an UOA, then the MB1. We'll see if and how much difference they are from another. Although that may be a year from now, lol.

Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4448732
07/03/17 07:05 PM
07/03/17 07:05 PM
Joined: Jul 2011
Posts: 340
San Diego, CA
Joenpb Offline
Joenpb  Offline
Joined: Jul 2011
Posts: 340
San Diego, CA
I think the bottom line is 5w20 has more blowby than 5w30, but whether or not a 5w30 is doing as good a job protecting your engine, only an UOA can prove. If I did go with a heavier weighted oil I'd definitely have a UOA performed at the end of the OCI. Good luck.

Re: Royal Purple 5w-20 High Performance Motor Oil [Re: Joenpb] #4448747
07/03/17 07:20 PM
07/03/17 07:20 PM
Joined: Oct 2011
Posts: 282
San Francisco, CA
Flying_A Offline
Flying_A  Offline
Joined: Oct 2011
Posts: 282
San Francisco, CA
I work with a ton of Mustang shops and tuners... Stepping up to a 5w30 seems to fix a lot of oil related issues in the 4.6L and 5.0L pony cars that recommend a 5w20. Your 4.6L is not much different (or the exact same) when compared to it's 96-2004 counterparts, many of which used a 5w30 as the recommended oil from Ford.

It seems to me at least that asking an energy conserving low HTHS 5w20 product in an kind of old-school-modular American V8 making some decent power is a tall order. Especially for reasons I already stated.

Last edited by Flying_A; 07/03/17 07:24 PM.

2008 Maserati Gran Turismo: Motul 300V Trophy 0W40
2017 Audi A3 etron: Motul X-clean FE 5W30/300V Sprint 0W15
Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn] #4448792
07/03/17 07:55 PM
07/03/17 07:55 PM
Joined: Jul 2011
Posts: 340
San Diego, CA
Joenpb Offline
Joenpb  Offline
Joined: Jul 2011
Posts: 340
San Diego, CA
One of the conclusions from my 5w20 Ultra Platinum UOA was the oil tested (about 7.5k miles) was found to be 5w30 viscosity. I figure the evaporated bloby oil collected was a major contributor to the thickening.

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