Royal Purple

[Jim Vaccaro]

Race #21 (5w30)

What do you think??

[GRY PRL]

Go for it man, Or check out the 5w 20 (RPR11) probably a better weight

[Lonestar 7]

It will work and especially in warmer climates its a better oil to use.

[tach9]

Race #21 (5w30)

What do you think??

Jim..use Royal Purple Racing 11...5w-20.....it is the proper weight for that motor...and seeing as the oil pump is one of the weaker links as you found out...proper oil is imperative...5w-20...

[Ralph Greene]

What was engine designed for? I imagine 5W20, 0W20, or 0W30, 5W30 all OK, but would ask VT. I would lean toward the somethingW20 unless Scotty says otherwise.

[Jim Vaccaro]

What was engine designed for? I imagine 5W20, 0W20, or 0W30, 5W30 all OK, but would ask VT. I would lean toward the somethingW20 unless Scotty says otherwise.

Scotty ,, Reco the 5w30 Sny oil..I have used Mobil1 before but wanted input on Royal Purple.

[Ralph Greene]

My personal view after studying this subject since about 1970, when I first used synoil (Amsoil), the same base stocks are available to all the oil makers, the same petroleum engineers work and drift around amoung the oil companies, and they all have to pass the same tests, so there is no difference that makes a difference between the brands. And if there is a difference, it's on purpose because of formula philosophy difference, not one being smarter than the other.

Most are using hydo cracked (whatever that means) base oils now to save cost, at least in their lower cost synoils (like the 7500 series Amsoil 5W20), and even that oil seems to work good. I heard an oil engineer say RP used the hydro cracked base stock also, but don't know if that is in all oils, some oils, or if in fact that is true or if it matters if true. I imagine Mobile One makes same marketing decisions about what base stock to use to be competitive price wise.

Fact is....No one on here really knows. All anyone really knows is marketing stuff.

Good luck with your engine Jimmy. Business must be good. All my stocks back up good also, maybe time to build another car.

[Jim Vaccaro]

Ralph.. That all makes good sense.There is prolly more difference in Cola's (pepsi,coke, royal crown) Also since we change oil so often,,I'll bet dino oils made today would be all we need..
Buisness good my sons are doing well and help me out with my cars...Kind of sponsorship..It's either get me running or i'll come to work more often!!! :hehe:

[Ralph Greene]

Ralph.. That all makes good sense.There is prolly more difference in Cola's (pepsi,coke, royal crown) Also since we change oil so often,,I'll bet dino oils made today would be all we need..
Buisness good my sons are doing well and help me out with my cars...Kind of sponsorship..It's either get me running or i'll come to work more often!!! :hehe:


Lamotta uses the Ford blend 5W20 ($1.77 at Walmart) in Christina's 8 sec (or is it 9?) turbo car.

[tach9]

My personal view after studying this subject since about 1970, when I first used synoil (Amsoil), the same base stocks are available to all the oil makers, the same petroleum engineers work and drift around amoung the oil companies, and they all have to pass the same tests, so there is no difference that makes a difference between the brands. And if there is a difference, it's on purpose because of formula philosophy difference, not one being smarter than the other.

Most are using hydo cracked (whatever that means) base oils now to save cost, at least in their lower cost synoils (like the 7500 series Amsoil 5W20), and even that oil seems to work good. I heard an oil engineer say RP used the hydro cracked base stock also, but don't know if that is in all oils, some oils, or if in fact that is true or if it matters if true. I imagine Mobile One makes same marketing decisions about what base stock to use to be competitive price wise.

Fact is....No one on here really knows. All anyone really knows is marketing stuff.

.......


Ralph, didn't know you were a Chemical Engineer.....please enlighten us more on the synthetic stock bases....Come on, you can't just throw out "Hydro-Cracking" without clarifying or justifying it's meaning and realtionship to synthetic stocks etc. It is a key point....

Marketing sure...most all know the marketing....from Mobil 1 to Penszoil...the true reality is we use what we feel comfortable using...whether it's based upon our own personal experiences or taking advice from someone that you trust......Me personally, I'd like to know from your Chemical Engineering stand point, what makes a base stock better than another base stock? This is a conversation worthy of oils IMHO...

[Ralph Greene]

OK....I thought I was being careful not to say anything negative about RP (because there is nothing negative to say about RP), and because I know you sell it. As a matter of fact if I lived in your area, I would be inclined to buy it from you.

And no, I'm not a petroleum engineer, just a retired stock broker, who reads about anyrhing and everything pertaining to businesses I can invest in.

I know that a few years ago, Castrol began manufacturing, marketing, and selling a low cost hi temp oil made with a basestock from conventional oil. As I recall, they called the process "hydrocraking", a process to change the molecular makeup of conventional oil, and Castrol called their product a "Synthetic" oil. Mobile objected, said it wasn't a true synthetic, and sued Castrol. Mobile lost.

Since then, other synthetic oil maunfacrurers have begin using this grade 3 base stock in the making of their synthetic oil. Amsoil says they do in their 7500 serier 5W20. It sells (for an Amsoil product) at a very competitive price. I've used this oil before, and found no fault with it, but then i don't stress it much. I do know Joe Lynch, a drag racer from Midland TX, who many of us know, successfully uses this oil. I also believe RP uses this base stock in a few of their products. I sincerely doubt if anyone on here uses their engines in such a way as to matter if their oil's basestock is grade 3, 4 , or 5. A 5W 20 has tests it has to meet. Tests far more severe than we subject our engines to...if cooling systems in good shape.

But here's the difference. Many manufactures make claims about their oils being better than someone else's oil, or claims to use a better base stock, when it can't really matter a lot. And no one on here is privvy to secret formulas, which probably change all the time anyway, and no one on here has any real idea which is the best oil to use for most uses. You just buy what you like, or what the marketing makes you like. And I agree with you, you just buy what makes you comfortable.

However, I do resent it when someone comes on here and says things like RP, Mobile, or whatever is the only way to go. Maybe an endurance racer should use Red Line, "word" is they use grade 5 base stock. Who really knows? Rusty Wallace and Ryan Newman race with Mibile !. Can I buy what they race with? I wouldn't want to use a race oil even if I could buy their oil.

Jimmy asked what is the difference, or is there a difference. My answer is there may be a difference, but it won't make a difference to him. It is far more important to get the viscosity correct for the use in my opinion.

Now maybe an oil engineer will come on. But I have talked to them also about this very subject of base stocks (I wanted to know about the company who did it first....to see if they had a competitive advantage), and they have opinions also and differ among themselves. I'm still not sure it matters a lot....although in extreme cases of use, in theory, it could matter. But not in my car.

[bayrunner]

For a stock broker......you know your lubes........

[tach9]

OK....I thought I was being careful not to say anything negative about RP (because there is nothing negative to say about RP), and because I know you sell it. As a matter of fact if I lived in your area, I would be inclined to buy it from you.

And no, I'm not a petroleum engineer, just a retired stock broker, who reads about anyrhing and everything pertaining to businesses I can invest in.

I know that a few years ago, Castrol began manufacturing, marketing, and selling a low cost hi temp oil made with a basestock from conventional oil. As I recall, they called the process "hydrocraking", a process to change the molecular makeup of conventional oil, and Castrol called their product a "Synthetic" oil. Mobile objected, said it wasn't a true synthetic, and sued Castrol. Mobile lost.

Since then, other synthetic oil maunfacrurers have begin using this grade 3 base stock in the making of their synthetic oil. Amsoil says they do in their 7500 serier 5W20. It sells (for an Amsoil product) at a very competitive price. I've used this oil before, and found no fault with it, but then i don't stress it much. I do know Joe Lynch, a drag racer from Midland TX, who many of us know, successfully uses this oil. I also believe RP uses this base stock in a few of their products. I sincerely doubt if anyone on here uses their engines in such a way as to matter if their oil's basestock is grade 3, 4 , or 5. A 5W 20 has tests it has to meet. Tests far more severe than we subject our engines to...if cooling systems in good shape.

But here's the difference. Many manufactures make claims about their oils being better than someone else's oil, or claims to use a better base stock, when it can't really matter a lot. And no one on here is privvy to secret formulas, which probably change all the time anyway, and no one on here has any real idea which is the best oil to use for most uses. You just buy what you like, or what the marketing makes you like. And I agree with you, you just buy what makes you comfortable.

However, I do resent it when someone comes on here and says things like RP, Mobile, or whatever is the only way to go. Maybe an endurance racer should use Red Line, "word" is they use grade 5 base stock. Who really knows? Rusty Wallace and Ryan Newman race with Mibile !. Can I buy what they race with? I wouldn't want to use a race oil even if I could buy their oil.

Jimmy asked what is the difference, or is there a difference. My answer is there may be a difference, but it won't make a difference to him. It is far more important to get the viscosity correct for the use in my opinion.

Now maybe an oil engineer will come on. But I have talked to them also about this very subject of base stocks (I wanted to know about the company who did it first....to see if they had a competitive advantage), and they have opinions also and differ among themselves. I'm still not sure it matters a lot....although in extreme cases of use, in theory, it could matter. But not in my car.


Ralph, now that's a good informative post...and I agree...base stocks are a touchy subject matter between chemical oil engineers...I too have had many discussions with them concerning this...but one thing they all seem to agree on is the quality of the additive package....and this wasn't discussed here in this thread...Viscosity...yup..I agree with ya..hence my post about 5w-20.....I too believe this to be the important figure. :D Yeah I sell RP...but I could sell whatever I wanted, RP has worked very well for me in my race cars...adn I have dyno proof in my race cars that they make a bit more HP with the RP than without...I'll continue to use them in my daily drivers too....until something better comes out...LOL..!!!

[Jim Vaccaro]

We all read things but comprehend things differently..From what i read i get the impression it is more important to change oil , then it is to change brand of oil..I see BMW use 15,000 mile intervals but if i pay for a BMW,I'd change oil more often..

I wouldn't buy my sons leased M3 that had only 3 oil changes and has more then 45K miles,,Then they put it on there lot as a Certified used car that passed 100 different items to quailfy..

Just a side note BMW reccomends 10w60 for there M3's that were haveing bearing problems..Imagine if FORD said use 10w60 to quiet the "TICK" in a modular motor..
BMW also change blocks from aluminum to iron on this years M3

[ValveTubeHead]

Interesting topic...I'm a sucker for "how stuff works" posts and a huge fan of mythbusters

Here's a bit of brainfood posted over at svt board...interesting stuff.
http://www.svtperformance.com/forums/showthread.php?threadid=79898

There was one comment over at www.corner-carvers.com regarding RP's "micro-polishing" feature which has me scratching my head:

http://corner-carvers.com/forums/showthread.php?t=10650&page=2&pp=40&highlight=royal+purple


-------------------
I think Mobil starting using group 4 base-stock with their tri-synthetic blend a few years ago... to remain competitively priced.

Redline, Amsoil & Motrlube are the only pure PAO's left:
http://www.canadiandriver.com/articles/pb/synthetic.htm

Regardless, that's I'm using Mobil, but I change it every 2000 miles, and there's lots of carbon in it. I guess there's a lot of blow-by... even in a rebuilt 5.0.

I tried Mobil ATF in my PS pump, and it REALLY didn't like it (sounded like a super-charger!). I've heard that their ATF doesn't mix well with other oils.

I'm using Redline in my tranny. I'm gonna start using Redline for all the oils that aren't changed frequently. (it's just too pricie to use their motor oil).

The Royal Purple is a moly lubricant. It can actually coagulate at extreme temperatures. Additionally, it micro-polishes everything. They sell this as a good thing: http://www.royalpurple.com/techa/whyrpa.html because it reduces friction... which is true... but it's also increasing clearances. I might consider using it once... to pollish up the inside, but I wouldn't use it continually.

Rob, do you have a block heater? I'd consider using synthetic in the winter... less wear at startup. I wouldn't prolong the intervals during the winter either... there's probably more condensation with so much heat cycling.

Phosphorus produces ash, zinc is hard on cats.

[DTMach1]

So I'm sitting here in my office at work wondering if the question has been answered fully...as someone mentioned this is a lot like pepsi v. coke

I think what it comes down to is people enjoying a certain type of oil and sticking to it.

I feel as long as it is the recommened weight, you as a normal driver will not be able to ascertain any difference between say, mobil 1, amsoil, or RP

Personally I *feel* the engine runs smoother on RP but that is a biased opinion so I can only convey my personal thouhts on RP.

[ImShakn]

I'm currently using Mobil1, but the main reason is because of its availability. A new speed shop just opened up near me that carries RP, so I might just give it a try and see if I can tell a difference. I might even put it on the dyno and see if there is a measureable difference (although it would be used Mobil1, I'm not draining fresh oil :D).

[DTMach1]

I'm currently using Mobil1, but the main reason is because of its availability. A new speed shop just opened up near me that carries RP, so I might just give it a try and see if I can tell a difference. I might even put it on the dyno and see if there is a measureable difference (although it would be used Mobil1, I'm not draining fresh oil :D).

i went from mobil 1 to RP and noticed nothing...but when the dealer put regular dino oil in at my 5000 mile interval and I switched it out to RP I did *feel a difference.

[Ralph Greene]

Lamotta uses the Ford blend 5W20 ($1.77 at Walmart) in Christina's 8 sec (or is it 9?) turbo car.

Correction....He's using 5W30 Mobile 1 in that car as of now. He would probably use any synoil anyone gave him. Jake don't like to buy much.