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Old 01-19-2011, 03:47 PM   #1
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Im a believer... Royal Purple great stuff

I have done alot of reading and watch videos on youtube but still wasnt sure if RP was worth the price but wow. I put it in both front and rear diffs and transfer case but didnt really notice a difference but this pass weekend I changed my trans filter and replaced the lost fluid with RP and damn right away I notice a difference it shifted sooooo smooth. when I am on the highway and need that extra power to pass someone or get up a incline it downshift smooth no jerking i cant even feel it shifting great stuff. When I have to change my oil I am using RP. If your on the edge about RP it is worth it. btw I have a auto tranny

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Old 01-19-2011, 03:51 PM   #2
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are you sure its not just new fluid and filter?
I thought RP was just some rebranded lowend oil.

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Old 01-19-2011, 03:59 PM   #3
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I thought RP was just some rebranded lowend oil.
It IS... i use VR1 (Valvoline) 20 50 oil and it does GREAT! right after i fixed my exhaust and tried this oil i was getting 19.5 mpg... and then i broke my exhaust again
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Old 01-19-2011, 05:52 PM   #4
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Good to hear I wanna replace all my fluids as well with royal purple got a auto trans as well. How many quarts did the rear and front diff take and the trans case/trans take so i get an idea on how much to buy. I know its expensive but sure its worth every penny!
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Old 01-19-2011, 06:25 PM   #5
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"""""I thought RP was just some rebranded lowend oil. """"" -- with food coloring.
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Old 01-20-2011, 08:19 AM   #6
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When I bought my jeep I was told that all the fluids have been changed by the previous owner last winter. I didnt believe the dealer so I changed them. The trans and tranfer case were both a nice red color. I didnt flush the trans bc the fluid looked good so all i did was replace the fluid that was lost when replacing the trans filter. My transfer case and diffs are straight RP. My trans is a RP Hybrid. and next will be the oil and that will also be straight RP. Laugh and joke all you want about the food coloring.
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Old 01-20-2011, 08:49 AM   #7
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"""""I thought RP was just some rebranded lowend oil. """"" -- with food coloring.
Is it really rebranded oil?
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Old 01-20-2011, 09:42 PM   #8
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Royal purple is actually one of the few true synthetic oils out there. All the BS hydrocracked GroupIII oils are no better that dyno oil with all its additives in my opinion. There is a reason Group III oils are not allowed to be called synthetic in most other countries.
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Old 01-20-2011, 09:45 PM   #9
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It's rare when someone doesn't think switching to some super-duper high-dollar lubricant or gimmick spark plug like the E-3 didn't produce some dramatic effect. The Placebo Effect hard at work.
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Old 01-21-2011, 04:27 AM   #10
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If a $5.00 steak dinner doesn't taste very good, will it taste better if they charge $35 for it?
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Old 01-21-2011, 05:30 AM   #11
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It IS... i use VR1 (Valvoline) 20 50 oil and it does GREAT! right after i fixed my exhaust and tried this oil i was getting 19.5 mpg... and then i broke my exhaust again
Do you seriously use 20w50? Thats heavy as hell for a jeep. You do know not even the biggest commercial/industrial diesel engines call for anything heavier than 15w40. Good luck with that.
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Old 01-21-2011, 05:33 AM   #12
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"""""I thought RP was just some rebranded lowend oil. """"" -- with food coloring.
Yeah, that makes a lot of sense, seeing how food coloring is water based.
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Old 01-21-2011, 08:07 AM   #13
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Do you seriously use 20w50? Thats heavy as hell for a jeep. You do know not even the biggest commercial/industrial diesel engines call for anything heavier than 15w40. Good luck with that.
I was thinking the same thing!
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Old 01-21-2011, 09:59 AM   #14
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I HOPE he's not really running 20W-50.
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Old 01-21-2011, 10:34 AM   #15
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If a $5.00 steak dinner doesn't taste very good, will it taste better if they charge $35 for it?
That's just called good business..
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Old 01-21-2011, 11:00 AM   #16
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I HOPE he's not really running 20W-50.
Why not?
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Old 01-21-2011, 11:36 AM   #17
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Is it Texas where you can see the purple wells drilling for purple dinosaurs?

Where is it they drill for pink elephants?
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Old 01-21-2011, 11:44 AM   #18
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I too change brands of oil I use a 0w-30 when I hit the trails of extreme conditions an 10w-30 for everything else but with the 10-30 I increased to 145 miles to 12 gal tank from 93 miles to a tank by switching to Amsoil

Btw I am NOT advertising for then just a firm believer in their products
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Old 01-21-2011, 11:50 AM   #19
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RP does make the best power steering fluid bar none. I tried everything from valvoline, to redline, to hydraulic oil, to tranny fluid in my steering on my crawler and RP is the only stuff that will not boil out and makes it easier working.
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Old 01-21-2011, 12:10 PM   #20
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If you don't have something nice to say, don't say anything. So I'm not going to comment on RP.
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Old 01-21-2011, 12:26 PM   #21
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It's rare when someone doesn't think switching to some super-duper high-dollar lubricant or gimmick spark plug like the E-3 didn't produce some dramatic effect. The Placebo Effect hard at work.
Hey Jerry, I have alot of trust in your advice for sure, but think that you should know that the benifits of syn oils are less heat, friction and longer change intervals because the oil only gets dirty but does not break down like conventional oils. It is more expensive but I would think a small price to pay for those advantages.
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Old 01-21-2011, 01:49 PM   #22
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What you should realize is that the use of a synthetic lubricant does not necessarily mean less heat. For example, it was discovered only several years ago that a synthetic gear lube does not sink (extract) heat out of the ring and pinion gear as effectively as a conventional gear lube does.

Starting several years ago, there was a rash of axle failures among some of their customers. It wasn't making any sense to anyone.
Though Currie filled their axles with Torco (the good stuff) conventional gear lube, many times their customers would refill the axle with synthetic gear lube. It took them quite a while to figure out what the problem was and it surprised virtually everyone

For warranty purposes, Currie is now one of many aftermarket axle manufacturers that now require that all their axles be filled with nothing but conventional gear lube. Their warranty costs dropped dramatically after that surprising discovery was made. The use of a synthetic gear lube in any of their axles will void the warranty. True, not a rumor.
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Old 01-21-2011, 01:56 PM   #23
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What you should realize is that synthetic oil does not necessarily mean less heat. For example, a synthetic gear lube does not sink (extract) heat out of the ring and pinion gears as effectively as a conventional gear lube does. For warranty purposes, Currie is now one of many aftermarket axle manufacturers that now require that all their axles be filled with nothing but conventional gear lube. Their warranty costs dropped dramatically after that surprising discovery was made. The use of a synthetic gear lube in any of their axles will void the warranty. True, not a rumor.
I did not know that Jerry, I will have to research and see why that is, I thought it would be running with less friction so would develop less heat any place it was used. Here in Florida we need all the help we can get trying to run cooler.
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Old 01-21-2011, 02:38 PM   #24
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Ima stick with dino oil. the reason why is that most car manufactures make cars that have long service intervals also have bigger filters. the last thing you want is a clogged up filter bypassing the gunk
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Old 01-21-2011, 03:06 PM   #25
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Bob Is The Oil Guy - Forums powered by UBB.threads™ This is a good site for oil questions.

Royal Purple may be good stuff. I've never tried it. I cost way too much. RP will not submit samples of it's oil to independent testing laboratories to get any accreditations. RP has no seal of crap. Mobil 1 B4 european spec 5w30 is the best oil money can buy and 1/2 the cost of RP.
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Old 01-21-2011, 03:58 PM   #26
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RP is one of my favorites, but i use castrol edge in my DD (slightly cheaper). so far i've been using only synthetics, but the info from this thread has made me want to do my own research...but so far no problems with only synthetic.
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Old 01-21-2011, 11:02 PM   #27
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I just saw a commercial for the RP Oil Filter not sure how new that is and got to be expensive as well.
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Old 06-13-2011, 03:54 PM   #28
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I have done alot of reading and watch videos on youtube but still wasnt sure if RP was worth the price but wow. I put it in both front and rear diffs and transfer case but didnt really notice a difference but this pass weekend I changed my trans filter and replaced the lost fluid with RP and damn right away I notice a difference it shifted sooooo smooth. when I am on the highway and need that extra power to pass someone or get up a incline it downshift smooth no jerking i cant even feel it shifting great stuff. When I have to change my oil I am using RP. If your on the edge about RP it is worth it. btw I hav
e a auto tranny
is that a 4cyl or 6cyl?

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