Royal Purple Oil Experience - 2005 Mustang GT
12-03-2009, 03:20 PM
#1
4th Gear Member
Thread Starter
Join Date: Nov 2005
Location: Northern VA
Posts: 1,249
Royal Purple Oil Experience - 2005 Mustang GT
I don't want to start an OIL's War.. But I want to express my Recent Experience with Royal Purple 5w20 in my 2005 Mustang GT. I ran Royal Purple since I bought the car and it had it's first Oil Change (July 2005) 70,000 miles lator and I replaced the Stock Cams with COMP 127200 NSR Cams. Anyway, I did not look at the cams until months lator when I noticed they looked new, confused I asked a friend to loan me his cams from his 2007 Mustang GT with 40,000 miles using Mobil 1 5w20.
Right off the bat I noticed the scaring and coloration. So I decided to Document the findings. Could the Royal Purple Marketing be True?
This Image shows Both Cams with Descriptions.
Image 4 & 5 show No wear from the edge of the Lobe to the center of the lobe on Royal Purple 5w20
Measure the Edge because I need a surface that has not been touched by the follower (Baseline)
Measure the Center and shows no wear
Image 4 & 5 Show wearing on the Cam Lobe from the follower on the Mobil 1 5w20 Oil
sure 100th of a MM is minor but the Royal Purple Cam has almost twice the Milage...
Again Measure the Edge for a baseline
Then the Center and there was some wear.
So I had to make sure my test vehicle was not a fluke so i borrowed another set of cams from a 2006 Mustang GT (image #3)
with 36,000 miles who always used Mobil 1 as well. Again the Cams look simular, (Top cam from 2006, Middle Cam from 2007
and the Bottom Cam from the 2005)
You can make your own conclusions but from this test I would have to say that Royal Purple's Claims about Less friction, less wear is not a gimick...
Amsoil and Royal Purple are very simular in that they are 100% Synthetic (No Mineral Oil Base Stock) like Mobil 1 and they both add ZDDP and additive that cleanes the engine and reduces wear. Royal Purple adds a small amount of a Moly simular to graphite this may be what created the reduced friction.
Right off the bat I noticed the scaring and coloration. So I decided to Document the findings. Could the Royal Purple Marketing be True?
This Image shows Both Cams with Descriptions.
Image 4 & 5 show No wear from the edge of the Lobe to the center of the lobe on Royal Purple 5w20
Measure the Edge because I need a surface that has not been touched by the follower (Baseline)
Measure the Center and shows no wear
Image 4 & 5 Show wearing on the Cam Lobe from the follower on the Mobil 1 5w20 Oil
sure 100th of a MM is minor but the Royal Purple Cam has almost twice the Milage...
Again Measure the Edge for a baseline
Then the Center and there was some wear.
So I had to make sure my test vehicle was not a fluke so i borrowed another set of cams from a 2006 Mustang GT (image #3)
with 36,000 miles who always used Mobil 1 as well. Again the Cams look simular, (Top cam from 2006, Middle Cam from 2007
and the Bottom Cam from the 2005)
You can make your own conclusions but from this test I would have to say that Royal Purple's Claims about Less friction, less wear is not a gimick...
Amsoil and Royal Purple are very simular in that they are 100% Synthetic (No Mineral Oil Base Stock) like Mobil 1 and they both add ZDDP and additive that cleanes the engine and reduces wear. Royal Purple adds a small amount of a Moly simular to graphite this may be what created the reduced friction.
Last edited by 2k05gt; 12-03-2009 at 03:44 PM.
12-03-2009, 08:07 PM
#2
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Join Date: Jun 2007
Location: Wheeling, IL
Posts: 3,748
Goes to show RP is not bad, and this proves the point very well.
I personally still love RP, even though I just changed to Amsoil to give it a shot.
However, I also hate Dealers that try to make money on putting down other oils, and try to convince members a certain oil is bad, and xxx oil is better.
All in all, I am very happy with these results. Do you have any pics of your oil pan? If not, disregard.
-Chris
I personally still love RP, even though I just changed to Amsoil to give it a shot.
However, I also hate Dealers that try to make money on putting down other oils, and try to convince members a certain oil is bad, and xxx oil is better.
All in all, I am very happy with these results. Do you have any pics of your oil pan? If not, disregard.
-Chris
12-04-2009, 06:27 AM
#4
4th Gear Member
Thread Starter
Join Date: Nov 2005
Location: Northern VA
Posts: 1,249
Goes to show RP is not bad, and this proves the point very well.
I personally still love RP, even though I just changed to Amsoil to give it a shot.
However, I also hate Dealers that try to make money on putting down other oils, and try to convince members a certain oil is bad, and xxx oil is better.
All in all, I am very happy with these results. Do you have any pics of your oil pan? If not, disregard.
-Chris
I personally still love RP, even though I just changed to Amsoil to give it a shot.
However, I also hate Dealers that try to make money on putting down other oils, and try to convince members a certain oil is bad, and xxx oil is better.
All in all, I am very happy with these results. Do you have any pics of your oil pan? If not, disregard.
-Chris
I am getting a UOA (Used Oil Analysis) Done this month, I will report the results.
+1 on the Comment about One Oil Company Bashing another, Thats One Reason I will not Use Amsoil and because I do not like MLM business model. If the Oil is so good whay can't I buy it at the auto parts store? JMO Other than that Amsoil is a Good oil, I just can't get myself to do a 24,000 mile oil change... 5000 is the max I will do for any oil.
Also I am not bashing any oil, I am only pointing out my results with Royal Purple. Yes it's a buck more than M1 but from these results it's worth it IMO.
Last edited by 2k05gt; 12-04-2009 at 06:36 AM.
12-20-2009, 10:44 PM
#10
4th Gear Member
Thread Starter
Join Date: Nov 2005
Location: Northern VA
Posts: 1,249
None at all. I check it each week and come time to change my oil I almost fill up all the 6 qt bottles that I take to the recycling center for disposal.
StriderTacticaL,
Why some doubts? Royal Purple is a 12,000 miles Change interval Oil, you can see that by the TBN Number, as the oil breaks down the TBN goes down and the effectivness of oil deminishes. a TBN of 2 would be time to change the oil, I have 5000 miles and the TBN is at the top of the scale 0-5 so the oil have a lot of life left. If I wanted to save some money I would buy one qt and a new filter (always change the filter no later than 6000 miles) I use Ford Racing CM-6731-FL820 Filters, but the K&N and Mobil 1 Filters are the same quality filter and they are made by Champian Labs and the guys are identical, so what ever filter you can get cheaper (M1 or K&N) they are the same.
In the UOA sheet, you can see the Silicone level being low, that means the Air Filter is working well, and the Magnesium is an additive in the Oil the same with the Moly and Zinc (ZDDP) is an additive to reduce wear.
You will like RP it's good stuff.
StriderTacticaL,
Why some doubts? Royal Purple is a 12,000 miles Change interval Oil, you can see that by the TBN Number, as the oil breaks down the TBN goes down and the effectivness of oil deminishes. a TBN of 2 would be time to change the oil, I have 5000 miles and the TBN is at the top of the scale 0-5 so the oil have a lot of life left. If I wanted to save some money I would buy one qt and a new filter (always change the filter no later than 6000 miles) I use Ford Racing CM-6731-FL820 Filters, but the K&N and Mobil 1 Filters are the same quality filter and they are made by Champian Labs and the guys are identical, so what ever filter you can get cheaper (M1 or K&N) they are the same.
In the UOA sheet, you can see the Silicone level being low, that means the Air Filter is working well, and the Magnesium is an additive in the Oil the same with the Moly and Zinc (ZDDP) is an additive to reduce wear.
You will like RP it's good stuff.
