Royal Purple.
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Royal Purple.
Senior User
Joined: Dec 2002
Posts: 192
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From: Shamokin USA
Royal Purple.
BigMatt,
Royal Purple has been around for awhile. Oil is big on the drag racing circuits. That's where they started. I personally use Royal Purple in my own race cars and F250SD. I do believe Royal Purple to be one of the best synthetics on the market. A little pricey, but I believe worth it. I've seen engines on the dyno pick up 10-20 horse on the dyno just by switching to Royal Purple. Honest. Wouldn't have believed it if I didn't see it with my own two eyes.
Royal Purple is also hard to find. You can probably find it at speed and specialty stores. Very big in drag racing circles. I will swear by this oil. The bearings in my 8000rpm big block Chevy show absolutely no signs of wear. And that's on alcohol, and after 125 passes on the engine. I am not a spokesman, rep, or have anything to do with Royal Purple. I just believe in their products.
Jimmie
2003 F250SD SB SC XLT 4X4 V8
Royal Purple has been around for awhile. Oil is big on the drag racing circuits. That's where they started. I personally use Royal Purple in my own race cars and F250SD. I do believe Royal Purple to be one of the best synthetics on the market. A little pricey, but I believe worth it. I've seen engines on the dyno pick up 10-20 horse on the dyno just by switching to Royal Purple. Honest. Wouldn't have believed it if I didn't see it with my own two eyes.
Royal Purple is also hard to find. You can probably find it at speed and specialty stores. Very big in drag racing circles. I will swear by this oil. The bearings in my 8000rpm big block Chevy show absolutely no signs of wear. And that's on alcohol, and after 125 passes on the engine. I am not a spokesman, rep, or have anything to do with Royal Purple. I just believe in their products.Jimmie
2003 F250SD SB SC XLT 4X4 V8
Post Fiend
Joined: Jan 2003
Posts: 9,748
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From: Connecticut
Royal Purple.
I read this post and checked out the Royal Purple website, since I am not really familiar with the brand, either.
The RP website seems to indicate that RP is 100% synthetic, thru and thru. At least that's the impression I get. I say this because I've been reading about other synthetic oils that actually use dino oil as a "carrier" (or somethingl ike that). Yet these other oils are advertised (legally) as "100% synthetic" even with dino as one of the primary ingredients.
Just an observation on my part. As I said, I don't know anything about RP other than what I read on the website.
The RP website seems to indicate that RP is 100% synthetic, thru and thru. At least that's the impression I get. I say this because I've been reading about other synthetic oils that actually use dino oil as a "carrier" (or somethingl ike that). Yet these other oils are advertised (legally) as "100% synthetic" even with dino as one of the primary ingredients.
Just an observation on my part. As I said, I don't know anything about RP other than what I read on the website.
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Postmaster
Joined: May 2002
Posts: 3,028
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From: Annapolis, Maryland
Royal Purple.
Thanks for the info - I'd never heard anything about it, other than that it was expensive as hell. I guess it's probably worth it if you need a 100% full synthetic.
XXL
XXL
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Joined: Mar 2003
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Royal Purple.
I have used Royal Purple in 3 Ford Trucks. 1995 Ranger 4cyl, ran it 192,000, miles. teardown at 150,000 showed no significant wear. Put back together with no parts replaced except spark plugs and gaskets. 1997 Ranger 3.0 6cyl. 182,000, no oil usage between changes (12,000 miles, filter @ 6000). I have it in my F250SD 5.4L now. I bought it @ 82,000. The gentleman told me it got 12.4 mpg, and took a quart every 1000 mi. It now has 102,000 on it, gets 14.4, and takes 1 qt every 5,000 mi, when I change the filter. I pull an 8200 lb travel trailer with it with no problem.
The above gentlemen were correct. RP is huge in Drag racing. It is somewhat pricey and a bit hard to find. However I feel it is also probably the finest lubricant available for hard working engines.
Since I pull with it, I use Ford ATF, and change it every 15,000, instead of 50,000.
The above gentlemen were correct. RP is huge in Drag racing. It is somewhat pricey and a bit hard to find. However I feel it is also probably the finest lubricant available for hard working engines.
Since I pull with it, I use Ford ATF, and change it every 15,000, instead of 50,000.
Senior User
Joined: Dec 2002
Posts: 192
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From: Shamokin USA
Royal Purple.
Yes, Royal Purple is the best oil I've ever used as I stated previously. I use it in everything. In fact, I only use Royal Purple lubricants in my personal stuff. Be careful if purchasing Royal Purple for your street vehicle. The racing version of their oil is NOT API certified. The street multi-grade oils are. Don't buy the Royal Purple "Racing XX" oils. They are great oils, but are formulated for fuel contamination and therefore, are not API certified.
Jimmie
2003 F250SD SB SC 4X4 XLT
Jimmie
2003 F250SD SB SC 4X4 XLT
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From: Slidell, La.
Royal Purple.
When I changed my transmission fliud (5 sp) I went to royal purple and it seemed to shift a little smoother, so then I put it in my rear end. I like it, and it is a little pricey. Down here we can get it at our local NAPA auto parts. I haven't tried it in my engine yet...
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Senior User
Joined: Dec 2002
Posts: 192
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From: Shamokin USA
Royal Purple.
You can't get Royal Purple anywhere around my area. I order it it from one of my suppliers. Just changed the oil in my 03 SD. Used RP 5W-20. Like I said before, in my race motors using RP I have had no bearing wear whatsoever. I am sold on this stuff. Truly 100% synthetic. In case anyone is wondering, RP is purple when you pour it. Does look a little funky.
Jimmie
2003 F250SD SB SC XLT 4X4
Jimmie
2003 F250SD SB SC XLT 4X4
Senior User
Joined: Nov 2002
Posts: 120
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Royal Purple.
Actually, not 100% synthetic. A small percentage is mineral oil which acts as the carrier for the additive package. That's the most that their tech rep would share with me. That they need a mineral oil carrier suggests that it's mostly PAO base stock.
I run RP 5w-30.
I run RP 5w-30.
Senior User
Joined: Mar 2003
Posts: 158
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From: Atlanta area
Royal Purple.
Royal Purple street oils are not true synthetics. After reading over their website, they make no mention of polyalphaolfin or any of the other synthetic basestocks available today. It is extremely unlikely that if RP did contain a true synthetic basestock, that it would not be mentioned. It is probably a Group III petroleum. OTOH, the racing oil is a real synthetic oil from what I've heard.
This is not to cast aspersions on Royal Purple or to belittle others favorable opinions. I'm sure their oil is competent though I sincerely doubt it can add a significant amount of horsepower to a vehicle unless the previous oil was so depleted that the vehicle was losing power because of it. In this case RP simply restored the lost power.
The word "synthetic" is a marketing term and has no technical standards associated with it. Anyone can use the term in relation to the oil so long as there is some means of distinguishing it from conventional dino oil.
This is not to cast aspersions on Royal Purple or to belittle others favorable opinions. I'm sure their oil is competent though I sincerely doubt it can add a significant amount of horsepower to a vehicle unless the previous oil was so depleted that the vehicle was losing power because of it. In this case RP simply restored the lost power.
The word "synthetic" is a marketing term and has no technical standards associated with it. Anyone can use the term in relation to the oil so long as there is some means of distinguishing it from conventional dino oil.
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Joined: Jun 2003
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Royal Purple.
It's not a Group III, it is a PAO with mineral oil as a carrier for it's additive package .
They do have some very good gear oil IMO
As to the funky name , it is a Company from England. The English Royal colors are Purple hence the name.
They do have some very good gear oil IMO
As to the funky name , it is a Company from England. The English Royal colors are Purple hence the name.
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Joined: Nov 2002
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Royal Purple.
I talked to a RP sales man who provides oil for our plant about this very thing. The automotive oil is a synthetic blend has DOHC said. The guy that owns RP was a lead researcher on the development of Mobil one acoording to the sales man. I'd bet there oils our very similar with the exception of the own special additive synerlec. Their racing oils have less mineral oil there industral lubricant are also more sythetic not sure if the have any mineral oil or not.
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Royal Purple.
As for the comment of this being a good gear oil, I would very much agree. The test I have seen makes me believe that the additive is an extremly good EP agent. I saw their 5W-30 oil have the same load bearing ability as Omala 220 thats a HEAVY gear oil with your standard sulpher phosphate EP additive! I don't know if this would translate into better wear for a car engine. But I plan on changing the rear end grease in my truck with it.