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Old 02-05-2012, 02:32 PM   #1
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Royal purple/ oils

Will royal purple void warranty? Also I know there are a ton of oil threads on oils but none that explain why people feel their the best. So what are we using and why? Any back up studies would be great

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Old 02-05-2012, 02:41 PM   #2
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Provided you use an approved viscosity, no brand will void warranty

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Old 02-05-2012, 02:46 PM   #3
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Nothing "VOIDS" a warranty except-

Willfully tampering with the speedo and that includes, installing bigger tires and not correcting speedo !

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Old 02-05-2012, 03:11 PM   #4
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Will keep an eye on this one.
I run royal purple in my Subaru STi after talking to a lot of other owners and hearing it was preferred over other synthetics in the turbos.
Just had our first oil change in the JKU but will probably switch to synthetic around 10k miles.
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Old 02-05-2012, 03:21 PM   #5
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My 11 jk gets 5w30 mobil one cause that's what JIMBOX uses. And that's what came in the vette so they all get the same vis.
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Old 02-05-2012, 03:27 PM   #6
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Heh Heh, yeah and believeit or not, my 1993 LT1 vette came with Mobil one and DEMANDED it for changes !but


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My 11 jk gets 5w30 mobil one cause that's what JIMBOX uses. And that's what came in the vette so they all get the same vis.
I think any of the toppers--Royal purple/valvoline/Amsoil are all OK !

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Old 02-05-2012, 04:23 PM   #7
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Royal Purple or other "top-tier" synthetics seem like overkill on a Wrangler. Your engine simply isn't worth enough money to justify the cost.

I use M1 on every vehicle we own simply because it is cheap and easy to get ahold of (except 5W40...).
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Old 02-05-2012, 06:29 PM   #8
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How about amsoil? Also in the manual it calls for 80w90 for front and rear diff but on oil sites for synthetic oils entering all info says to use 75w90. And for towing another. Any advice?
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Old 02-05-2012, 06:32 PM   #9
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RP is trash. Everyone I know in the sports car world (where oil actually matters) agrees. If you want synthetic, use M1 for the Wrangler. If you want the best, Amsoil is as good as it gets.

Let me correct myself....if you just want to run synthetic in your Wrangler, run whatever top tier (ie Mobil, Valvoline, Castrol, Pennzoil, etc) are on sale at Costco/Walmart/Autozone.
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Old 02-05-2012, 06:34 PM   #10
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A lot of my co-workers and myself use Lucas in our vehicles or Royal Purple. And I called about warranty issues and apparently so long as it has the starburst symbol, any brand is OK.
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Old 02-05-2012, 06:42 PM   #11
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Is 80w90 what I need to put in?
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Old 02-05-2012, 06:46 PM   #12
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Is 80w90 what I need to put in?

In the differential - YES

In the engine - NO

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Old 02-05-2012, 06:47 PM   #13
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2010 sahara and 2012 rubicon. Just want to make sure and put the right stuff in the diffs
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Old 02-05-2012, 08:19 PM   #14
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Originally Posted by Zacfrd View Post
How about amsoil? Also in the manual it calls for 80w90 for front and rear diff but on oil sites for synthetic oils entering all info says to use 75w90. And for towing another. Any advice?
75w90 is good if you aren't towing. Valvoline has the highest specs for gear oil.
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Old 02-05-2012, 08:23 PM   #15
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Quote:
Originally Posted by Wallygator View Post
A lot of my co-workers and myself use Lucas in our vehicles or Royal Purple. And I called about warranty issues and apparently so long as it has the starburst symbol, any brand is OK.
Not trying to be a d!ck just trying to save you money. Both RP and Lucas have been proven to be pure BS lubricants and nothing more than snakeoil.
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Old 02-05-2012, 08:26 PM   #16
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Originally Posted by joe002 View Post
75w90 is good if you aren't towing. Valvoline has the highest specs for gear oil.
LE Engineering makes the best gear oil on the market, but I think it is a bit overkill for a Wrangler.

Lubrication Engineers -Automotive
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Old 02-05-2012, 08:38 PM   #17
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LE Engineering makes the best gear oil on the market, but I think it is a bit overkill for a Wrangler.

Lubrication Engineers -Automotive
I don't know? Obviously it must meet API GL-5 as thatís the minimum spec for our diffs. I just checked your link and yeah, as does Valvoline, it also meets or exceeds MT-1 and SAE J2360! It looks spec wise itís the same as Valvoline - how is it better? I hadnít seen another gear lube other than Valvoline that met or exceeded all of the specs (some say they are designed to the specs but donít say they meet or exceed them). Valvoline is pretty easy to pick up at most stores and usually isn't way over-priced.
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Old 02-05-2012, 09:00 PM   #18
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I vote for Royal Purple

I've seen this demonstration years ago, it is Royal Purple vs. Mobil 1. I think hands down Royal Purple kicks Mobi's butt.

The RP Difference - Royal Purple
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Old 02-05-2012, 09:09 PM   #19
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Quote:
Originally Posted by Zacfrd View Post
Is 80w90 what I need to put in?
80W-90 if using conventional gear lube, 75W-90 if using synthetic. If towing alot you could move up to 75W-110.
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Old 02-05-2012, 10:16 PM   #20
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Not trying to be a d!ck just trying to save you money. Both RP and Lucas have been proven to be pure BS lubricants and nothing more than snakeoil.
I work at the store so its cheap to buy for me. I myself dont use RP because I'm not sure what the dye to turn it purple is doing to my internals. I prefer the Lucas. As for price is it about the same as mobil 1 or even a bit less and a lot less than Amsoil. As far as Quality I ran it in my last car till well over 200 thou and the engine was the one thing that never gave me issues and still never used a drop of oil. Thats the only proof I need. But honestly any decent synthetic is gonna do yer motor good. I like having almost instant oil pressure in the winter because it doesnt get thick like conventional oil. Cold starts are one of the hardest thing you can do to your engine and I prefer to have oil circulating properly right away unlike conventional.
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Old 02-05-2012, 10:17 PM   #21
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80W-90 if using conventional gear lube, 75W-90 if using synthetic. If towing alot you could move up to 75W-110.
Never seen 75-110 but sure sell a lotta 75-140.
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Old 02-05-2012, 11:09 PM   #22
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To the OP, maybe you should check out a forum that is dedicated to oil discussion and factual postings, Bobistheoilguy.com. You will get more than just opinions there.

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