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#4446535 - 07/01/17 09:01 AM Royal Purple 5w-20 High Performance Motor Oil
GTJohn Offline


Registered: 04/09/07
Posts: 24
Loc: 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

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#4446538 - 07/01/17 09:10 AM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
rooflessVW Online   content


Registered: 12/24/11
Posts: 4086
Loc: 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."

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#4446541 - 07/01/17 09:23 AM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: rooflessVW]
GTJohn Offline


Registered: 04/09/07
Posts: 24
Loc: 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

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#4446566 - 07/01/17 09:53 AM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2569
Loc: 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.

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#4446631 - 07/01/17 11:55 AM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: oil_film_movies]
Kuato Offline


Registered: 10/23/05
Posts: 7094
Loc: 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

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#4447019 - 07/01/17 09:01 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
SilverFusion2010 Online   content


Registered: 06/29/11
Posts: 1663
Loc: Crawfordville FL
The new formula is probably a bit thinner
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4448124 - 07/03/17 08:56 AM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
ThirdeYe Offline


Registered: 02/23/07
Posts: 8155
Loc: 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 - 598k - Valvoline 5W-20/Purolator Synthetic PSL14610

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#4448192 - 07/03/17 10:19 AM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
deven Online   content


Registered: 06/28/05
Posts: 3406
Loc: 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

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#4448340 - 07/03/17 01:10 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
Vladiator Offline


Registered: 01/04/16
Posts: 728
Loc: 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.
_________________________
Thicker oils give protection for severe operations such as driving in mountains, pulling a boat, dusty conditions, short trips, high rpm, overloading, overheating and overcooling. Thin oils give MPG.

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#4448634 - 07/03/17 06:50 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: deven]
Garak Offline


Registered: 12/05/09
Posts: 24620
Loc: 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

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#4448656 - 07/03/17 07:12 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
GTJohn Offline


Registered: 04/09/07
Posts: 24
Loc: 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


Edited by GTJohn (07/03/17 07:20 PM)

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#4448676 - 07/03/17 07:27 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
Joenpb Offline


Registered: 07/04/11
Posts: 336
Loc: 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.

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#4448732 - 07/03/17 08:05 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
Joenpb Offline


Registered: 07/04/11
Posts: 336
Loc: 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.

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#4448747 - 07/03/17 08:20 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: Joenpb]
Flying_A Offline


Registered: 10/14/11
Posts: 282
Loc: 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.


Edited by Flying_A (07/03/17 08:24 PM)
_________________________
2008 Maserati Gran Turismo: Motul 300V Trophy 0W40
2017 Audi A3 etron: Motul X-clean FE 5W30/300V Sprint 0W15

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#4448792 - 07/03/17 08:55 PM Re: Royal Purple 5w-20 High Performance Motor Oil [Re: GTJohn]
Joenpb Offline


Registered: 07/04/11
Posts: 336
Loc: 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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