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Discussion Starter #1
Well, I'd like to give y'all a little editorial on my experience with Royal Purple. I just hit 45,000 miles this week and was due for an oil change. I've been running Mobil 1 5W-30 Full Synthetic since 5,000 miles. I was at O'Reilly's buying some oil on Friday and decided to go with Royal Purple. And here are my results.

I heard before that you get more power, better mpg's, this and that. I figured it was all hype, but I might as well find out for myself for an extra $12. So I went and did the oil change. I'm not going to lie to y'all, the truck felt smoother after the oil change. I don't know if it was having the old oil in there (I change it every 5,000 miles with full synthetic every time), but I think that Royal Purple really made a difference.

The truck just felt all around smoother. And the butt dyno felt like it had a little more pep in it's step. It just all around felt good.

Another thing to mention was the gas mileage. I received a speeding ticket back in October and after being on differed disposition for it, I've been driving like a grandma. Always going the speed limit on the highway and getting about 14.9-15.3 mpg. Well, now that my differed period is over, I can speed again. And I was going anywhere from 65 to 85 for my ~90 mile drive back to school. I averaged 15.1mpg with my higher speed.

So, there's my 2 cents on Royal Purple. And if the benefits keep up, I'll be running it again when I change at 50,000 miles.

Fun Fact: The oil itself is actually purple. I did not know that until I started pouring it in.
 

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I bought a case of RP gear oil back when it was cheap, now a case of 75/140 (12 x 1 QT) w/free shipping goes on Amazon for $174. Seems fine to me, always looks good when I drain it.
 

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Discussion Starter #3
I bought a case of RP gear oil back when it was cheap, now a case of 75/140 (12 x 1 QT) w/free shipping goes on Amazon for $174. Seems fine to me, always looks good when I drain it.
I was also recommended their Automatic Transmission Fluid (ATF), but I remember hearing something about Nissan having warranty issues if you use anything besides their J-Matic fluid. Any truth to that?
 

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I was also recommended their Automatic Transmission Fluid (ATF), but I remember hearing something about Nissan having warranty issues if you use anything besides their J-Matic fluid. Any truth to that?
I dunno about RP ATF, but I'm running Amsoil w/o problem.
 

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Discussion Starter #5
I dunno about RP ATF, but I'm running Amsoil w/o problem.
Gotcha. Yeah, I'm not going to mess with anything like that until I run out of my warranty. I have the extended warranty to 100,000 miles and don't want to run into any issues with voiding that as far as the J-Matic is concerned. I'll probably be dropping the truck off next week to have the 45,000 mile service performed.
 

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I always had very good used oil analysis with Royal Purple, It is what I use in my Diff right now. The only synthetic that gave me better UOA's was Pennzoil Platinum.

You should have no problems getting 10K+ miles out of your RP. Send Blackstone labs a sample and see how it holds up. You will be even more impressed.

oh, my all time favorite motor oil, which I have not used in the Titan yet is Redline Oil. I ran that crap out of that oil in my Twin turbo Z and it just kept performing. Best oil I have ever seen in that car. maybe I will try it in the Titan soon.
 

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USN HM 350Z: The Redline stuff for rear diff is it the MT90? What are you planning on using? In the diff and transmission. I hope to change out diff and tranny this weekend. For that matter any advice guys?
Thanks In Advance.
 

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I ran Amsoil in my 06 Titan when I did the tranny drain and fill, and I didn't have any issues.
 

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Thanks for the report!

I love the Royal Purple gear oil. I use the 75w140 in the rear dif and 75w90 in the front dif. Every time I change my dif oil, the oil still looks and smells brand new. The stock gear oil looked like black and silver gravy with lots of shavings the first time I changed it at 40k. I haven't tried the RP motor oil, mainly due to the price (I use mobil 1), but I think I might give it a shot next oil change. I am very confident in the quality of Royal Purple products, so I guess it's time to give their motor oil a try.
 

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Discussion Starter #10
Thanks for the report!

I love the Royal Purple gear oil. I use the 75w140 in the rear dif and 75w90 in the front dif. Every time I change my dif oil, the oil still looks and smells brand new. The stock gear oil looked like black and silver gravy with lots of shavings the first time I changed it at 40k. I haven't tried the RP motor oil, mainly due to the price (I use mobil 1), but I think I might give it a shot next oil change. I am very confident in the quality of Royal Purple products, so I guess it's time to give their motor oil a try.
Glad you've had good experiences with the gear oil as well. All this positive feedback is good. I'm not a believer in RP and will be recommending it to friends.

I suggest you try at the next oil change. I used to be a strictly Mobil 1 guy, but I honestly don't see myself going back after this. I had to make a quick pass today in traffic and the truck jumped from 35 to 50 damn near instantaneously. I'm a believer now!
 

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Discussion Starter #13
Is it better to use other brands such as Royal Purple? The dealer told to use genuine Nissan oil only.
It's just a way for them to make money and to keep you coming in more often. Synthetic oil is better than conventional in every way. You get what you pay for.
 

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Wow, great review etalian... I've always been a M1 user as well... M1 synth oil and filter... going to try the RP oil now as well... I throw in a bottle of Lucas Synthetic Oil Stabilizer in mine w/ 6 qts of oil, and change mine out roughly every 7.5k miles, 10k at the most... As for the diffs and tranny, I have not switched them out yet (just hit the 80k mark) and will be doing those as well... thinking I will go with RP for the diffs, and may just do the same for the tranny, if not the AmsOil... You'all think I can get Royal Purple to send me a complete front to rear package for use, evaluation, and promotion pitch??? ;)
 

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Discussion Starter #15
Wow, great review etalian... I've always been a M1 user as well... M1 synth oil and filter... going to try the RP oil now as well... I throw in a bottle of Lucas Synthetic Oil Stabilizer in mine w/ 6 qts of oil, and change mine out roughly every 7.5k miles, 10k at the most... As for the diffs and tranny, I have not switched them out yet (just hit the 80k mark) and will be doing those as well... thinking I will go with RP for the diffs, and may just do the same for the tranny, if not the AmsOil... You'all think I can get Royal Purple to send me a complete front to rear package for use, evaluation, and promotion pitch??? ;)
Never changed the tranny or the diffs yet with 80,000? I had both diffs, tranny, and t-case changed at 30,000. I'd get on it if I were you!

:cheers:
 

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Discussion Starter #17
:rofl: I know... I know... I have been lucky not to have broken anything as hard as I drive my T...
That's why you do your preventive maintenance so you don't have to worry about pushin' it to the limit :bangit:
 

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What about high mileage oil? I’m a little over 100k on my Titan and have always just use regular oil. Does the high mileage oil make a difference or is it just another gimmick they try a sell suckers like me.
 

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What about high mileage oil? I’m a little over 100k on my Titan and have always just use regular oil. Does the high mileage oil make a difference or is it just another gimmick they try a sell suckers like me.
I honestly have no idea. I've never had a vehicle over 60,000 miles. But I'm gonna still say that synthetic is better than any conventional oil.
 
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