Royal purple - oil analysis results

WarmAndSCSI · 08-08-2010, 10:24 PM

Most of the break-in wear metals should have been out of your oil system by then, especially if you drove spiritedly up to that point. All wear levels are high for a supposedly awesome synthetic, and the viscosity there isn't great at all for an oil that ought to have at least a 3.5 HTHS rating (I dunno if it does, RP doesn't publicize specs like everybody else).

I would highly suggest switching to a better oil like Mobil 1, Castrol Syntec, Pennzoil Platinum, Red Line, AMSOIL or basically anything else. It honestly doesn't look like Royal Purple is doing too well for your case. I've seen much better UOA's at that mileage from pretty much every other synthetic out there.

Hopefully some people start to wise up about this over-priced, mis-marketed product. Ugh.

Oh, and the magnesium is a "Detergent/dispersant additive"

Red370 · 08-08-2010, 10:42 PM

Quote:

Originally Posted by WarmAndSCSI

Most of the break-in wear metals should have been out of your oil system by then, especially if you drove spiritedly up to that point. All wear levels are high for a supposedly awesome synthetic, and the viscosity there isn't great at all for an oil that ought to have at least a 3.5 HTHS rating (I dunno if it does, RP doesn't publicize specs like everybody else).

I would highly suggest switching to a better oil like Mobil 1, Castrol Syntec, Pennzoil Platinum, Red Line, AMSOIL or basically anything else. It honestly doesn't look like Royal Purple is doing too well for your case. I've seen much better UOA's at that mileage from pretty much every other synthetic out there.

Hopefully some people start to wise up about this over-priced, mis-marketed product. Ugh.

Oh, and the magnesium is a "Detergent/dispersant additive"

how do you get that from that chart? everything looks normal and the company even states that the wear levels are normal, and wasnt this after some hard driving?

WarmAndSCSI · 08-08-2010, 10:59 PM

Quote:

Originally Posted by Red370

how do you get that from that chart? everything looks normal and the company even states that the wear levels are normal, and wasnt this after some hard driving?

Compare them to other UOA's on the VQ37, and to universal averages. His copper wear is 3x higher than it should be, for example. Copper comes from one major source in your engine - bearing surfaces. Fact is, any good synthetic should protect better than the universal average. That's what they're marketed to do. I can name at least one that has proven to do so even on a long OCI on the VQ37VHR.

I didn't bother reading into what Blackstone had to say because they are assuming the engine is still breaking in. It's just simply not, not after hard driving, and not after that many oil changes and miles.

Philipp · 08-09-2010, 05:49 PM

Quote:

Originally Posted by WarmAndSCSI

Most of the break-in wear metals should have been out of your oil system by then, especially if you drove spiritedly up to that point. All wear levels are high for a supposedly awesome synthetic, and the viscosity there isn't great at all for an oil that ought to have at least a 3.5 HTHS rating (I dunno if it does, RP doesn't publicize specs like everybody else).

I would highly suggest switching to a better oil like Mobil 1, Castrol Syntec, Pennzoil Platinum, Red Line, AMSOIL or basically anything else. It honestly doesn't look like Royal Purple is doing too well for your case. I've seen much better UOA's at that mileage from pretty much every other synthetic out there.

Hopefully some people start to wise up about this over-priced, mis-marketed product. Ugh.

Oh, and the magnesium is a "Detergent/dispersant additive"

Well, i guess the RP fans will not like that comment, but, without any real comparison (meaning others car with the same oil changes frequency, oil type, driving style etc...), it will be tough the state that RP isn't good for the Z...

Other synthetic oil analyses have showed great & poor numbers... Also, the fact that I added my oil cooler when changing my oil (third one) may have increase the values of some indicators.

I did some comparison with other Blackstone reports using RedLine and Ester oil for the 370 (all from this forum) and reports are showing different values for the "Universal average" column... I wonder what makes the average change over such a short time-frame

...

Any ideas?

Phil

08-08-2010, 10:24 PM	#1 (permalink)
WarmAndSCSI A True Z Fanatic Join Date: May 2010 Location: SLC, UT Posts: 1,671 Drives: '08 Evo X \| '10 370Z Rep Power: 19	Most of the break-in wear metals should have been out of your oil system by then, especially if you drove spiritedly up to that point. All wear levels are high for a supposedly awesome synthetic, and the viscosity there isn't great at all for an oil that ought to have at least a 3.5 HTHS rating (I dunno if it does, RP doesn't publicize specs like everybody else). I would highly suggest switching to a better oil like Mobil 1, Castrol Syntec, Pennzoil Platinum, Red Line, AMSOIL or basically anything else. It honestly doesn't look like Royal Purple is doing too well for your case. I've seen much better UOA's at that mileage from pretty much every other synthetic out there. Hopefully some people start to wise up about this over-priced, mis-marketed product. Ugh. Oh, and the magnesium is a "Detergent/dispersant additive" __________________ '10 PW 370Z 7AT - wife's car - Project Raspberry Cheesecake '08 Evo X - built motor+trans \| BB-X @ 32 psi \| CH3OH \| self-built+tuned - ??? WHP '01 Galant V6 - built motor \| GT35R \| self-built+tuned - 550+ WHP (retired) Last edited by WarmAndSCSI; 08-08-2010 at 10:28 PM.

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