Royal Purple? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 6 (permalink) Old 01-16-2009, 02:25 AM Thread Starter
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Royal Purple?

Any expeirence with Royal Purple 15w40? Local store has it for $24gal.

01' F250 PSD CC 4x4, GTP38R, Hi-Flow outlet, DI Bellowed up-pipes, BTS Hpop, DI Regulated return, ITP Annilator, AM 3pod, AFE PG7 Stage II, Silverline 4in T-Back, 6.0 Trans cooler, Dp F5, BTS Trans, True-Trac 3.73, Powerslot Cryo, Rotella ELC, Nitto Terra 285/75/16E on Alcoa wheels
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post #2 of 6 (permalink) Old 01-16-2009, 02:42 AM
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Re: Royal Purple?

I have run royal purple for along time but change is in the air. I have never had any failers with RP, just like to try different things. This time around I am using Amsoil with the filter bypass kit. I almost hate to do it since I can get RP for $4.50 a quart.
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post #3 of 6 (permalink) Old 01-16-2009, 04:13 AM
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Re: Royal Purple?

You can get the same or better wear metal results on a used oil analysis report with Schaeffer's 15W-40, Schaeffer's 5W-40 synthetic - Chevron Delo 400, or Rotella 5W-40 synthetic. I believe Delo 400 and Schaeffer's are much less expensice than Royal Purple.

2003 F250, Wildman tunes, Faubion trns, Swamps 175/146 SS,van turbo/WW, DI Intercooler, oilguard bypass, intank & pre-pump, reg return, Firestone air bags, Bilsteins, 350 HP/692 TQ
2000 Excursion- Pwrd by: T Wildman 6 pos chip, CT Performance Suspension, Riffraff Diesel Performance, J&M Tranny, 4" MBRP, 6637 filter, intank/prepump mods
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post #4 of 6 (permalink) Old 01-16-2009, 04:15 AM
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Re: Royal Purple?

i just changed my oil with purple and used their radiator treatment to and my engine is runnin alot cooler. i would recomend it, but i heard you'll get the same thing from redline too.
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post #5 of 6 (permalink) Old 01-17-2009, 12:25 PM
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Re: Royal Purple?

I have been using it for the last 30,000 miles or so.

96FordF3507.3PSDCC, (Line X'd) bed, 4x4, 5 speed manual, 4.11 gears, 285/75/16 Cooper Discoverer ATP , 260,000 miles, 3-4" down pipe, 4" exhaust w/5" polished SS tip, gutted EBPV, chrome nerf bars, autometer ultra lite pyro and boost gauges, alpine cd player, alpine speakers, Garmin GPS.
"Real trucks have 3 Pedals, 2 Sticks, and No Spark Plugs"
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post #6 of 6 (permalink) Old 01-17-2009, 02:37 PM
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Re: Royal Purple?

I've ran it for about 70,000 and I just swithed to valvoline. havn't been hearing very good things about it so that's why I switched. I did get a uoa on the rp before I switched and the results came back good.

2004 f350 6.0L psd 4x4 6spd cc sb dark shadow gray, sct tuned by eric, 6" ICON 20x12 centerline, 35x13.5 mickey t atz
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