OVERKILL
$100 Site Donor 2021
Absolutely nothing stands out on that report other than TBN, the rest is all WELL within the margin for noise.
RP worth over the competition (Walmart Pricing)
- Thread starter singular9
- Start date
I've been using Royal Purple for over 10 years now. Love it. Go to youtube and search for "Tenza Motorsports" He used API approved Royal Purple in a BMW that had varnish and sludge and he was surprised how much cleaning RP did in just 500 miles.
OVERKILL
$100 Site Donor 2021
Looks like a typical A3/B4 additive package in the AW department.
What difference are folks seeing that means a thing here? UOAs just can't be used in this manner to compare oils.
I’ve never used it, always thought of it as overpriced and overhyped. If it was around the price of M1, Pennzoil, Castrol 5 quarts jugs or cheaper I would try it out.
Some people swear by it. Use what you like. That’s all I’m going to say about it, my first account got banned by arguing over RP with a die hard fan of it.
Some people swear by it. Use what you like. That’s all I’m going to say about it, my first account got banned by arguing over RP with a die hard fan of it.
I like colored oils so I'll jump on the RP bandwagon! I always see it at WM and understood it to not be anything special to justify the price.
Not saying you can't get the same add pack in Rotella, but I've actually torn down several race motors that ran HPS oil (granted it was changed every race) and, IMHO, it does a great job in engines that make 3HP per cube.
I'm at 3.2 hp/cube so I better drop my HPL and get on this purple stuff
OVERKILL
$100 Site Donor 2021
Not talking about Rotella, that's an HDEO, more like M1 0W-40/Castrol 0W-40, full-SAPS Euro oils, the former which has extensive use in 24hr racing like LeMans and Sebring. I've seen the same with M1 FS 0W-40 (before it had the FS designation) in several SBF's I've built or had a hand in building.
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AutoMechanic
Site Donor 2024
We have one tech here who swears by it at work but I haven’t found it to be any better. I’d use Valvoline or Castrol over it. The RP would have to be on sale cheaper than most brands for me to use it. I’ve used it before when it was on sale. And the guy I work with who swears by it will only buy it at the parts store because he is one that believes Walmart sells knock off oil because it’s cheaper than the parts stores 
. I know a couple people like that. I’d buy the Valvoline and call it a day if it were me.
. I know a couple people like that. I’d buy the Valvoline and call it a day if it were me.
People look for certain additives and think "more is better" and oil "x" must be better than oil "y" because of arbitrary values.
I know, it's really not how this works.
I'm a fan of the M1 Euro 0-40, I buy it in the 12Qt "garage packs" whenever my local wallyworld has it (which isn't often enough). I also by the HPS RP in 5 gallon jugs, I use the two of them interchangeably...whichever one I happen to have on hand when oil changes come due.
Might change your mind if you put it in that W8I'm at 3.2 hp/cube so I better drop my HPL and get on this purple stuff
Sounds like u need a Meth injection system. Get that up to 5:1 ehI'm at 3.2 hp/cube so I better drop my HPL and get on this purple stuff
W8 gets the moly of liquid.
Sounds like one stupid technicianWe have one tech here who swears by it at work but I haven’t found it to be any better. I’d use Valvoline or Castrol over it. The RP would have to be on sale cheaper than most brands for me to use it. I’ve used it before when it was on sale. And the guy I work with who swears by it will only buy it at the parts store because he is one that believes Walmart sells knock off oil because it’s cheaper than the parts stores
Not very bright to buy into hype and false advertising either
Been really happy with it. Car is daily driven for Agency Contractor Nurses so it sees alot of
highway. It's much cleaner than the Mos2,quieter,cleaner and all around good stuff. Next oil change will be 0w30 M1 again. Have used Ceratec since around 100,000 miles or so and previous it was 0w20 Redline.