Poll - Royal Purple engine oil

[C Schomer]

Does anyone use RP 15w40 syn oil? My petro LE oil has been good but it costs as much as syn oil. I'm thinking of switching to a syn and compare oil tests. If anyone is using it - have you tried other syns or even the LE 15w40. I hope this doesn't start a war! TIA! Craig

 

[John]

After a 13. 5k mi. break-in period (using Valvoline/Cummins Premium Blue), I tried Red Line 15W-40 synthetic... it worked OK however, I thought my oil analyses should have been better... especially considering the cost per quart. I used this oil for around 27k mi. , changing it at an average interval of 6. 7k (with the intention of stretching this to 10k IF oil analysis supported this. . which it didn't).

Switched to Valvoline/Cummins 15W-40 Premium Blue 2000 semi-synthetic... had it in for only 2k mi. (I switched it out after reading data that I didn't particularly care for pertaining to this oil).

Switched to Amsoil 15W-40 HDD&M synthetic... worked VERY well and much cheaper than Red Line. It also provided me with the best oil analysis report. . to that date...

I became an Amsoil "dealer" (to purchase the products cheaper) and switched to their Series 5W-30 HDD synthetic... AWESOME! I received by far, the best oil analysis to date! #ad
I'm staying with the Series 3000... although, I've always wondered about the Royal Purple (I've heard it is an excellent quality synthetic).

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John Treibel
'98. 5 2500 QC 4x4 Sport, Glasstite Vision II, 285 BFG A/Ts on M/T Challengers, Warn 4X Boards, Mopar fender flares & tow hooks, NW Custom s/s-rubber mud flaps and accs. , Mag-Hytec diff. cover & DD trans. pan, Edelbrock IAS shocks, Reese Titan V hitch, Jordan Research Ultima 2020 trailer brake controller, next gen. (heated) Power Vision mirrors, SPA gauges (3), Dynamat, '00 Sport grille and headlights/PIAA Super White bulbs, "special" Brite-Box, PIAA Dual Sport 900 aux. lights, BD exh. brake, Amsoil Dual Remote Bypass w. trick billet block adapter and Aeroquip Teflon-s/s hoses, Optima Yellow Tops, DD3s and DD TTPM, Aeroquip AQP s/s fuel hoses, tricked out Cummins valve cover, tricked out Banks High-Ram and 14 cm2 (wastegated) turbine housing, ATS 3-piece exh. man. , Banks 4" dia. s/s exh. sys. , DTT 93% TC, DTT custom tuned VB, BD modified trans. front pump (enhanced by DTT), Air Bulldog induction hood (with NACA ducts), plus MANY other trick modifications

COMING ATTRACTIONS: break out those sun glasses! Plus, BLACKOUT gets a "BIG GULP"

NRA Life (Patron) member

[This message has been edited by John (edited 05-28-2001). ]

 

[bull1kevin]

I put royal purple in my truck last oil change. I was told run 6000 miles come in change the filter and top it off then run another 6000 before changing. So where can you get an oil analysis done? how much oil do you send? what does it cost?

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97' 2500, 2x2, 5spd. 330/750TST,afc springkit,silencer ring & kitty missing,K&N, straight pipe Luk Pro Gold clutch (John Deere hauler)

 

[C Schomer]

One of the members who works for RP told me they just got hooked up with a lab and the tests cost $9. 50. Their www site might say who it is. You buy the kits and the cost of the test is included. They take about 4 ounces. I just drill and tapped the front side of my filter base(oil before the filter)and put on a sample valve. I get the sample running and don't have to screw around with sucking it out of the sump. I haven't looked at the Amsoil site for a long time but they used to say their 15w40 was the ultimate for diesels even tho the people using the 3k5w30 are getting great test results. I've narrowed it down to RP or Amsoil. Craig

 

[Jacobs]

I have been using Royal Purple 15W40 for 100,000 + miles in my 95. Have been doing samples as well. I change the filter every 6000 miles and the oil at 24000. I normally add 2 quarts per 6000 miles, one for makeup and one for the filter. This system works for me.

Last sample had 15,346 miles on sample and it came back :

AAS Analysis Readings in Parts per Million
Copper 7
Iron 53
Chromium 2
Aluminum 2
Silicon 10
Lead 4
Calcium 3249
Magnesium 159
Zinc 1475

Solids 0. 8
Soot Index 0. 68

Physical & Chemical Tests
Viscosity 14. 2
Fuel Dilution 0. 6
Antifreeze Neg
Water 0

IR Analysis % of Allowable
Oxidation 22
Nitration 0
Sulfation 64

Test was run by Petroleum Technologies in Grand Rapids, MI.

 

[Cooker]

WOW!

I live in GR and I didn't know we had an oil testing facility locally.

Did they test TBN?

Thanks,
Ryan

 

[paccool]

I've been running the Royle Purple for about 2 years. Was using Vavoline before the switch to the syn. Funny, but the first thing I noticed after switching was how much smoother the dip stick slid in! Change filters around 3-4 K and the oil at 12-15K. Have not been running samples and that is why the early changes. I want to put on a bypass setup and then will start doing the samples. The sample valve is a great idea as long as the valve doesn't work open!

If you have any seal leaks, they will probably get worse with synthetic. The oil is slicker and seems to get out a little easier.

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Stan
93 2WD extended cab, Banks Power Pack, K&N air filter, PW Injectors,rebuilt and tweaked pump, auto w/3. 54 rear with limited slip, US Gear Exhaust Brake, 3-1/2" Exhaust, Chrome valve covers and heater lines, 5K air bags, Boost/Pyro/Tach Gauges, Green/Silver, new 40-20-40 bucket seats, 151K

 

[redram]

Hi

Anybody that wants to talk RP can email me at my personal email, nitz@wt.net.

I work for Royal Purple as the tech services mgr and have been a member of TDR since I bought an '89 in early 1990.

I have oil analysis from both this truck and my current '96 5 speed.

By the way, the full retail cost of our API Licensed 15W40 CH-4 / SJ oil is about the same as those of you who choose to become dealers for other oils to get a better price. You're getting it from the manufacturer without multi-level markups.



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[groundpounder]

Just switched to RP myself as I live close to a Flying J truck stop which sell RP. I love it!! First thing I noticed, besides the color, was how it seemed to quite my truck just a little. Will be doing oil tests in the near future. $14. 95 gal. + tax.

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99 Dodge 4x4 Quad Diesel NV241HD auto. K&N, 4" JRE, 5" chrome tip, matched 275 Bosch injectors, 2. 5" Skyjacker leveling kit, B. F. Goodrich Mud Terrains 35/12. 50-16. 5, Eagle 589's 16. 5x9. 75, silencer ring MIA. (more to come)

 

[Shelby Griggs]

Originally posted by groundpounder:
$14. 95 gal. + tax.

That sounds like a good price. We are talking a full synthetic here, aren't we? Heck, at that price it is just twice what I am paying for the PB conventional oil. I might not have such a fear of synthetic at that price, I could just double my interval (which I would feel comfortable with) and be even on oil costs. Better fuel mileage and less wear would be bonuses then.

Shelby

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2001. 5 2500 QC LB 4WD, ETH (Built 09-10-00), DEE, 3. 54 gears, Laramie SLT, Camper Special, Trailer Tow, Travel Convenience Group, Power Driver Seat, Alarm System, Remote Keyless Entry, Fog Lamps, Cab Clearance Lamps, HD Transfer Case, Bright White with a Gray Interior. Built 09-15-00, took delivery on 10-06-00, 12310 miles as of 05-01-01. Custom aluminum work body / flat bed. Coming soon: E-Brake and gauges.

 

[wdixon]

Been using RP now for close to a year. I have no complaints. I will soon go to RP in the rear end(s), Tranfer Case & transmission.

I give it my recommendation.

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Y2K 2500, Auto, 4x4, QC, Short Box, Garnet Red, Westin Nerf Bars, K&N, Gatorback Belt, Synthetic Lubes, Reese 15k Side-to-Side Piviot Hitch

1998 Sea Breeze 37 Ft Triple Slide 5th Wheel.