Royal Purple...how does it compare?

[OVERKILL]

sulphated denotes sulfur?

isnt sulphur in gear oil to make it more betterer?

does that correlate to hps "high"hths for say 5w30

https://link.springer.com/article/10.1007/BF02541759

There's one example. There are so many different possible options, I can't really opine on this, but I do believe the idea was that it provided some EP or AW function, though EP really doesn't exist in most engines, that's a gear oil and transmission thing.

This would have no impact on their decision to blend it with a higher HTHS.

 

[Wireman1987]

RP has a Dexos license I give them that much. I hear it’s good oil I been tempted to run it but can’t get myself to spend the money on it. I would probably try it before I would amsoil

 

[proffittmarke]

Royal Purple 0W20 used oil analysis
This is my first used oil analysis.Used Blackstone. Royal Purple 0W20 Dexos. What do you guys think?

 

[RDY4WAR]

The phosphorus is low, but it could also be Blackstone reporting low. Honestly, it looks like Gucci Valvoline. Wear metals look good though.

 

[facility1]

looks like a pretty good uoa,,decent oil.

 

[97prizm]

Royal Purple seems like the boutique oil of Walmart. Ive always been a little suspicious of it and understand it uses a cheaper base stock than Amsoil. Amsoil is a very well made high quality oil which does not spare the expense. I would run it myself but I simply cannot justify the price. The Royal Purple isnt cheap but its a little better at nearly 10 per quart versus 15 per quart for Amsoil.

If you run Royal Purple can you post some used oil analysis? How does it compare to other oils? I enjoy watching Amsoil, HPL and RedLine go all out to make the best oils known to mankind. Hats off to them and maybe one day I might buy it. Im just wondering if Royal Purple is truly in the "boutique oil" club or is it simply another Walmart discounted rollback thing... Should I stick with the good ole silver Mobil 1 bottle or trade off to the purple bottle?

If I get my Mazda rx-7 race car going before winter I'll run a used oil analysis. I ran 85w-90 with a little 85w-110 gear oil in the differential as it had lsd additive already in it. I think the Synerlec was peak RP but am not definitely sure. I always ran 10w-40 oil in it for a race season. With oils as good as they are I always thought it was wasteful to dump it after every race.

 

[Jocephus]

As people said…the buyout really changed the product.

That being said, I still use it in one vehicle. My daughter died and I still have her mustang. Her favorite color was purple. Her mustang is purple. She liked royal purple. So it gets royal purple as long as I live.

 

[D1dad]

I’ve always been partial to it and used the old formula for years, dating back to when auto parts stores sold an oil and filter combo for $35 or so. My nephews a bridge builder and they were burning up borer machines until calumet fixed things up for them. Now everything that moves, gets RP. I don’t use the shelf swill but am using hps and now xpr in my cars and ope and have no doubt that it’s just fine. The hate here is off the charts and I doubt most of the horror stories behind it.

I mean a pic of an engine that looks like it was ran on gravel is due to RP? Doubt it! There’s way more to the story.
We ran a worn out 350 rocket 30 yrs ago with no oil or coolant till it blew, tore it apart and it didn’t look like that.

I’ll use it in my new cars and old, never get a used oil analysis and doubt I’ll ever be in here complaining that it’s the devils lube.

While this forum is great, it’s about as hyperbolic as it gets. Both good and bad.

 

[97prizm]

Royal Purple seems like the boutique oil of Walmart. Ive always been a little suspicious of it and understand it uses a cheaper base stock than Amsoil. Amsoil is a very well made high quality oil which does not spare the expense. I would run it myself but I simply cannot justify the price. The Royal Purple isnt cheap but its a little better at nearly 10 per quart versus 15 per quart for Amsoil.

If you run Royal Purple can you post some used oil analysis? How does it compare to other oils? I enjoy watching Amsoil, HPL and RedLine go all out to make the best oils known to mankind. Hats off to them and maybe one day I might buy it. Im just wondering if Royal Purple is truly in the "boutique oil" club or is it simply another Walmart discounted rollback thing... Should I stick with the good ole silver Mobil 1 bottle or trade off to the purple bottle?

I've always ran it in my Mazda rx-7 race car with no issues. Never ran a used oil analysis. Did they cheapen the formula when they got bought out? I remember when it said "With Synerlec " but don't know what that was.

 

[D1dad]

I've always ran it in my Mazda rx-7 race car with no issues. Never ran a used oil analysis. Did they cheapen the formula when they got bought out? I remember when it said "With Synerlec " but don't know what that was.

There’s used oil analysis of xpr and hps showing great results in new and older vehicles. The Walmart stuff is dexos approved yet it’ll destroy your engine? Is it better than the board go to, supertech… doubt it. The price and the color set the narrative. It’s fine oil. I’d just about guarantee, a blind virgin analysis of hps or xpr would be sung from the mountain tops unless RP was in the title.

 

[rrtx2007]

Royal Purple isn't bad oil. I used it for years, but I can get a Dexos full syn now for much less money, and changing your oil is more important than price. We all know that now.

 

[D1dad]

Royal Purple isn't bad oil. I used it for years, but I can get a Dexos full syn now for much less money, and changing your oil is more important than price. We all know that now.

It’s always been the most important thing. While I generally do 5k oil changes, I have no issue dumping oil @3k during a brutal winter and lots of idle time. I’m not against a used oil analysis, but if I ever did one it would be to determine my engine health and not to see if I can keep using my oil. If it’s time for a used oil analysis, it’s probably past time to change it.

 

[kschachn]

There’s used oil analysis of xpr and hps showing great results in new and older vehicles. The Walmart stuff is dexos approved yet it’ll destroy your engine? Is it better than the board go to, supertech… doubt it. The price and the color set the narrative. It’s fine oil. I’d just about guarantee, a blind virgin analysis of hps or xpr would be sung from the mountain tops unless RP was in the title.

Which would be a fine statement if a used oil analysis showed a performance comparison between oils or if that VOA could predict future performance.

This applies to any brand. Blackstone has stated that there is no statistically significant difference between any oil they have ever tested.

Yet people keep trying in order to promote their pet brand.

 

[maraakate]

Which would be a fine statement if a used oil analysis showed a performance comparison between oils or if that VOA could predict future performance.

This applies to any brand. Blackstone has stated that there is no statistically significant difference between any oil they have ever tested.

Yet people keep trying in order to promote their pet brand.

You mean checking oil levels and changing your oil on time matters more? That's nonsense.

 

[kschachn]

You mean checking oil levels and changing your oil on time matters more? That's nonsense.

What’s nonsense is using a $35 spectrographic analysis to perform comparative quality analysis between oils, or to use it to predict future comparative performance.

If someone really believes that then I would suggest informing the SAE and ASTM. They require a hecka more complicated and expensive test

 

[maraakate]

What’s nonsense is using a $35 spectrographic analysis to perform comparative quality analysis between oils, or to use it to predict future comparative performance.

If someone really believes that then I would suggest informing the SAE and ASTM. They require a hecka more complicated and expensive test

Slightly OT. I have wanted to run OA for fun, but I have noticed there seems to be a false economy in regard to pricing. It appears from all my lurking that it makes the most sense if you're trying to do extended drain intervals. Especially with a service fleet.

Back on OT. RP should be fine.

 

[OVERKILL]

Slightly OT. I have wanted to run OA for fun, but I have noticed there seems to be a false economy in regard to pricing. It appears from all my lurking that it makes the most sense if you're trying to do extended drain intervals. Especially with a service fleet.

Back on OT. RP should be fine.

Yes, exactly, I've done used oil analysis to ensure that my drains beyond the OLM, didn't yield anything unexpected (which it didn't).

 

[Patman]

Royal Purple isn't bad oil. I used it for years, but I can get a Dexos full syn now for much less money, and changing your oil is more important than price. We all know that now.

We do? I don’t think so. Using a basic synthetic and changing it every 3000 miles is not a superior choice over using a much higher quality synthetic and changing it every 6-10k. For example Kirkland/Supertech vs Mobil 1 ESP or Amsoil or Valvoline Restore and Protect.

Changing your oil every 3000 miles doesn’t guarantee a clean engine (especially piston ring cleanliness) so oil choice matters much more than frequency of the oil change

 

[D1dad]

Which would be a fine statement if a used oil analysis showed a performance comparison between oils or if that VOA could predict future performance.

This applies to any brand. Blackstone has stated that there is no statistically significant difference between any oil they have ever tested.

Yet people keep trying in order to promote their pet brand.

Yep. There’s nothing better than a post that shows 20k on an oil and then claiming that oil as blackstone/bitog champ.

 

[tired]

Slightly OT. I have wanted to run OA for fun, but I have noticed there seems to be a false economy in regard to pricing.

Just use a good lab, i.e. not Blackstone. Pick Polaris, Oil Analyzers, or Wearcheck. Lots of errors with Blackstone, and they don't use GC for fuel dilution. The others also give you oxidation. Zero reason to use Blackstone.