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Re: Royal Purple....good or bad (totalchevy1)

Royal Purple, new? Uhhh, what do you consider new?
That said, while their oil isn't certified to meet any VW specs, it seems to be fairly decent oil for some engines. The thing is, if you read the UOAs over on BITOG, you'll see that it does very well in some engines and not so much in others.


Modified by shipo at 4:44 PM 6-20-2008
 
Re: (totalchevy1)

UOA = Used Oil Analysis
BITOG = Bob Is The Oil Guy http://www.bobistheoilguy.com/...s.php
Over on the BITOG site they have a forum that is effectively a database of UOAs posted by the users, and by now there are roughly 5,000 UOAs in the database.
Keep in mind that there are no Royal Purple oils that are certified to meet any of the VW oil specifications (i.e. 502.00, 503.01, 505.00 or 505.01 for U.S. cars); so if your car is under warranty and suffers an oil related engine failure, you can kiss your warranty goodbye.
That said, if you've already driven through the warranty period, and if you find that the UOAs look pretty good for your engine, you might want to give it a try as any failure at that point is on your dime anyway.
Keep us posted, especially if you have a couple of UOAs performed.
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http://www.blackstone-labs.com/
 
Re: Royal Purple....good or bad (totalchevy1)

I used it for several changes... and then stopped because the last time it burned about 70% of it in about 3500 mi..!!!! When I've used it in several cars before with excellent results. That time the dipstick came out rather dry. As much as I love the brand, for my Jetta (138k) I now use high mileage mineral...
 
i use it on my subaru, which is a 2.2L NA (naturally aspirated, i.e. non-turbo). that engine doesn't require much, and a bunch of subaru people have used it to good effect.
i use ELF/total in my 1.8T golf. between the turbo and the extra performance, i'm allowing myself to be over-the-top tweaky about the oil.
robb.
 
do NOT use royal purple, or mobil 1.
RP and M1 xW30's have a low High Temp High Shear to meet energy conserving requirements and are less shear stable.
Meaning the film that the oils have to protect from high temp friction tends to shear which can cause excessive wear over a short period of time.
I use castrol, works for me.
(I use 5W50, yeah I know it isn't exactly recommended, but thats what i use, i may be switching to 5W40 here soon as its cheaper and meets VW reqs)
 
Re: (Mr-X)

Quote, originally posted by Mr-X »
do NOT use royal purple, or mobil 1.
RP and M1 xW30's have a low High Temp High Shear to meet energy conserving requirements and are less shear stable.
Meaning the film that the oils have to protect from high temp friction tends to shear which can cause excessive wear over a short period of time.
I use castrol, works for me.
(I use 5W50, yeah I know it isn't exactly recommended, but thats what i use, i may be switching to 5W40 here soon as its cheaper and meets VW reqs)

Too funny, you use a non approved oil that can have significant implications vis-a-vis your warranty and in the same breath you recommend against using Mobil 1 which has one grade that IS VW approved (i.e. Mobil 1 0W-40) and will keep your warranty intact.
Hmmm, I suppose you recommend Slick-50 and Lucas Oil Treatment as well.
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Re: (Mr-X)

yeah that seems a bit contrary. Depends on what you're running inbetween changes too. For 5,000 miles they both should be just fine. They're not going to shear down to a 20W in 3k miles. My UOA's from 0w-40 on my 1.8T show that it won't..
 
Re: (shipo)

Quote, originally posted by shipo »

Too funny, you use a non approved oil that can have significant implications vis-a-vis your warranty and in the same breath you recommend against using Mobil 1 which has one grade that IS VW approved (i.e. Mobil 1 0W-40) and will keep your warranty intact.
Hmmm, I suppose you recommend Slick-50 and Lucas Oil Treatment as well.
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Good call-hahaha.
I've used Royal Purple for the majority of my oil changes(2002 VW GTI 24v VR6) and have had great sucess. The engine friction is very noticeably reduced, this can be easily felt by an articulated driver.
I have also had the opportunity to experiment with some weight variations on the track. My favorite so far is 15W-40 for summer events.
I do however use Mobil1 in the winter and stick to the factory recommended 0W-40; for the obvious viscosity characteristics.
But staying on topic...I'm not sure what you mean(Mr-X) when you claim "excessive wear over a short period of time." Does the wear occur at high temperatures or at start up? What kind of damage are we talking about? I'm just curious what you've heard.
Oh yeah, and wear did you find this out?
 
Re: (JohnMartin)

Quote, originally posted by JohnMartin »
I've used Royal Purple for the majority of my oil changes(2002 VW GTI 24v VR6) and have had great sucess. The engine friction is very noticeably reduced, this can be easily felt by an articulated driver.

An articulated driver?
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Hmmm, last time I checked, most drivers were able to bend at least 45 degrees at the waist, and spend most of their time so bent when inside of a car.
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Re: (jakub28)

Quote, originally posted by jakub28 »
Not sure why people choose to go against what Volkswagen engineers have put endless amount of analysis into. :/

For some unexplainable reason many car enthusiasts buy into the baseless oil advertising hype. These people believe they will gain something from using an oil that is not specifically designed for their VW engine vs. the oils VW has actually tested and confirmed to meet VW engine requirements.
This consumer illness had made many a snakeoil company very wealthy, even after they have been prosecuted for fraud.
 
Re: Royal Purple....good or bad (shipo)

Quote, originally posted by shipo »
That said, while their oil isn't certified to meet any VW specs, it seems to be fairly decent oil for some engines. The thing is, if you read the UOAs over on BITOG, you'll see that it does very well in some engines and not so much in others.

I agree and the only thing I would add is that "newer" oils such as RP tend to get beat up on BITOG because they are "new" or "boutique" oils. Until lots of UOAs are posted and people have had more experience the jury is still out on this oil IMO. So take the BITOG opinions with a grain of salt and look for objective analysis.
 
Re: Royal Purple....good or bad (saaber2)

Why do folks keep suggesting that Royal Purple is "new", I mean come on, I've been running into that oil (at retailers and in shops) since the mid 1980s. Given that the automotive market for synthetic oil isn't much older than that, I'd say they're one of the older companies in the segment.
 
Re: Royal Purple....good or bad (shipo)

I think it is new to many people in the sense of wide distribution so you don't have a lot of users who have used it for a long time in comparison to Mobil1 etc. That is why I put quotation marks around "new", because it is perceived as new (and it is new to a lot of people who never heard of or used it before the last couple years when it started having wider distribution/marketing), even though it is not really a new product.
 
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