Anyone have and thoughts on increased horsepower when using Royal purple? What causes this oil to perform with higher hp and torque #'s on dyno test? Anyone have any valid pros/cons to using this oil? I've searched and havent found any UOA's that have striked me as concerning! Any input will be greatly appreciated.
Royal purple and increased horsepower
- Thread starter PROJECTCAR
- Start date
- Status
All increased horsepower claims may be disregarded no matter where they come from, unless they run lots of vehicles under highly controlled conditions and publish ALL the details of their test. Otherwise, the increased horsepower could have come from anything -- or it could have been a fluke.
Royal Purple is decent stuff. Race teams wouldn't use it if it weren't. But it shears more often than anything I've seen, and they also have been known to use really silly "tests" to show that their oils are superior. There's no real "con" to Royal Purple except that there's no reason to believe it's a particularly good oil compared to other synthetics, IMO.
Royal Purple is decent stuff. Race teams wouldn't use it if it weren't. But it shears more often than anything I've seen, and they also have been known to use really silly "tests" to show that their oils are superior. There's no real "con" to Royal Purple except that there's no reason to believe it's a particularly good oil compared to other synthetics, IMO.
Pure sales hype.
Some oils might help ring seal and could in theory "increase" HP (not a true increase), but maybe delta + vs. another oil. But Royal Purple has no magic hidden secret advantage.
Some oils might help ring seal and could in theory "increase" HP (not a true increase), but maybe delta + vs. another oil. But Royal Purple has no magic hidden secret advantage.
but it's a cool color!
Yep, no purple dye needed for HP. I watched my built Neon R/T get almost 5 hp on a dyno from an Amsoil product. But that means nothing to YOUR car.
Yep, no purple dye needed for HP. I watched my built Neon R/T get almost 5 hp on a dyno from an Amsoil product. But that means nothing to YOUR car.
The HP gain claims that have been made by RP involve swapping various fluids over to their products which reduces friction which robs power. The late model Trans Am/Firebird that gained 9HP after a fluid swap on HPTV is one example.
They never claimed their fluids actually "MAKE" HP but rather their fluids reduce friction in the drivetrain which frees up HP already being made. There is a huge difference there. You can actually see an increase in HP by swapping to synthetic's but they are not making it. They just reduce friction which robs power being made already. Just frees up power already there.
All oil mfg's, ALL OF THEM, make ridiculous marketing claims. RP is no worse than any other company.
They never claimed their fluids actually "MAKE" HP but rather their fluids reduce friction in the drivetrain which frees up HP already being made. There is a huge difference there. You can actually see an increase in HP by swapping to synthetic's but they are not making it. They just reduce friction which robs power being made already. Just frees up power already there.
All oil mfg's, ALL OF THEM, make ridiculous marketing claims. RP is no worse than any other company.
Last edited:
Redline's previous website (replaced only about 1 month ago) had a flash movie called "The science of synthetic oil" They claimed a 6HP increase in a BBC from "oil alone"
it does sound like marketing hype. Every company tries to make their product sound superior to the rest
So essentially a change of oil to synthetic over conventional could yield a higher hp and/or torque # due to a reduction in friction. For that matter used conventional oil being changed with fresh conventional could acheive similar results?
RP tests showed HP losses as well as increases.
More HP can be gleaned by using thin oils.
That is why Nascar cars sometimes use 5W oils for qualifying runs.
More HP can be gleaned by using thin oils.
That is why Nascar cars sometimes use 5W oils for qualifying runs.
Notice that these tests never say what was in the car before. If RP took a decently running car that had 20W-50 oil in the motor and 90W-130 oil in the tranny and differential, and replaced both of these with 5W-20 and 75W-90 I am failry sure that HP would go up more than the error bars on the dyno from day to day.
The problem is that you don't see what the other side of the test is/was.
The problem is that you don't see what the other side of the test is/was.
There's a LONG video that has been posted on this site in the past.Its a Aussie video.They guy owns a shop and builds performance autos.He does a dyno run on several cars with oil and filter changes etc.He shows were a synthetic oil name I never heard made more H.P. on every one of the cars he tested.
Originally Posted By: NHHEMI
All oil mfg's, ALL OF THEM, make ridiculous marketing claims. RP is no worse than any other company.
I know you're going to quote what I'm saying and try to turn it into a huge war of massive posts, but I have to disagree with you here. This is blatantly not true. Some companies make more ridiculous claims than others, and RP is definitely worse than some (although obviously not the worst).
All oil mfg's, ALL OF THEM, make ridiculous marketing claims. RP is no worse than any other company.
I know you're going to quote what I'm saying and try to turn it into a huge war of massive posts, but I have to disagree with you here. This is blatantly not true. Some companies make more ridiculous claims than others, and RP is definitely worse than some (although obviously not the worst).
Amsoil claims the same thing I guess you are not a Mopar guy because AMsoil has all kinds of Engine Build off's and their is almost always some HP claims in the Amsoil add that follows. I think all of the synthetics claim this type of thing off and on. It is only really true when compareing to dino oils for themost part. Also the more ester content and themore molly the more true it is. If anything Redline would have to beat every oil on the planet as far as over the counter oils are concerned. Their use of ester's and huge amounts of molly make their oil super low friction!Hence more HP!
The 'test' was on a very high output engine and high RPMs.
Changing from convetional oil to synthetic 'could' give higher
readings from just that change alone.
Marketing hype.
Changing from convetional oil to synthetic 'could' give higher
readings from just that change alone.
Marketing hype.
Originally Posted By: d00df00d
Originally Posted By: NHHEMI
All oil mfg's, ALL OF THEM, make ridiculous marketing claims. RP is no worse than any other company.
I know you're going to quote what I'm saying and try to turn it into a huge war of massive posts, but I have to disagree with you here. This is blatantly not true. Some companies make more ridiculous claims than others, and RP is definitely worse than some (although obviously not the worst).
Nope, no long posting war. You are a member here, based on past discussions, that I have learned not to waste my time with. You are entitled to your opinion. Mine is RP is no worse than any other company. At one point or another every oil company makes some stupid claim that comes back to haunt them.
Funny how it was BP/Castrol that went after RP for marketing claims and now they are getting hit for it. What goes around comes around!
Next week it will be Valvoline or Quaker State. The week after it will be Schaeffers. And on and on... It is the nature of the marketing beast.
Originally Posted By: NHHEMI
All oil mfg's, ALL OF THEM, make ridiculous marketing claims. RP is no worse than any other company.
I know you're going to quote what I'm saying and try to turn it into a huge war of massive posts, but I have to disagree with you here. This is blatantly not true. Some companies make more ridiculous claims than others, and RP is definitely worse than some (although obviously not the worst).
Nope, no long posting war. You are a member here, based on past discussions, that I have learned not to waste my time with. You are entitled to your opinion. Mine is RP is no worse than any other company. At one point or another every oil company makes some stupid claim that comes back to haunt them.
Funny how it was BP/Castrol that went after RP for marketing claims and now they are getting hit for it. What goes around comes around!
Last edited:
"Also the more ester content and themore molly the more true it is. If anything Redline would have to beat every oil on the planet as far as over the counter oils are concerned. Their use of ester's and huge amounts of molly make their oil super low friction!Hence more HP!"
Thanks for all the input and confirmation of my thoughts on this oil.
Thanks for all the input and confirmation of my thoughts on this oil.
Originally Posted By: PROJECTCAR
Anyone have and thoughts on increased horsepower when using Royal purple?
Yeah........
Anyone have and thoughts on increased horsepower when using Royal purple?
Yeah........
There could be a huge difference in HP/Tq output between two different oils.
You start with a cold engine, filled with the competitor's product- perhaps a 20w50? Dyno that sucker, cold. Quickly drain out the competition's product, and dump in your synthetic 20w50 or -whatever- into a warmed up engine. Let it circulate around and then redyno your product- with a warm engine. You may see a considerable difference in output.
I have no problem with RP. Marketing is marketing.
You start with a cold engine, filled with the competitor's product- perhaps a 20w50? Dyno that sucker, cold. Quickly drain out the competition's product, and dump in your synthetic 20w50 or -whatever- into a warmed up engine. Let it circulate around and then redyno your product- with a warm engine. You may see a considerable difference in output.
I have no problem with RP. Marketing is marketing.
Ive had the best high rpm, wide open throttle power with RP 5w30 street oil. But I dumped it BC I didnt like the way the car ran in normal driving. The yaris has very sensitive VVTI system. I have castrol syntec in there now, and that has good power - though i had to add 1 pint of 10w40 syntec to get the VVTi working in the sweet-spot. When its working right, it feels like a low pressure turbo. I say viscoisty customisation using your fav brand of syn is the way to go. Europeans do it all the time - and play with their oil too
Last edited:
- Status