Royal Purple. Engine Damage In The Long Term?

CharleyGFX

This might be somewhere on the forum, but I can't seem to find it. But anyways. I've had my Z for about a year now, bought it last April. And ever since than, I've ALWAYS change my oil every 7-8K thousand miles with Royal Purple, with a KN oil filter. But I had a discussion with one of my friends today, and they swear up and down that in the long term, Royal Purple will ultimately mess up your internals. My two friends are driving a Civic Si(K20) and a TSX(K20).

So the question is? is this true. If so? do you guys recommend switching to Mobile 1. With A Mobile Filter

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"If you ain't crawling? you ain't balling"

Philipp

I always used RP on my cars. Never had any issues with it....

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2009 370z, MT & Sport package.
DynoPack (stock): 268.8WHP & 224.4 Torque//K&N filters//Air cabin filter//HPS Tubes//Tune to come when VVEL...

KravMaga

I've used RP for a long time and have never had any issues...

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import111

I been using Royal Purple on the 370Z for about 19k miles without any issues.

Waiz

7-8K, really?

I was running RP for awhile and once went all the way to 6K and it turned to sludge.

I now just run M1 to about 5K and have had no problems, I as a general rule would never run to your intervals OP.

kellyefields

if you want to run longer in between oil changes I would suggest getting a synthetic filter. I switched to the RP filter and am giving that a try. I will cut it open at 5k and see what it looks like and make my determination from there with the oil evaluation. if it seems good I may try running it longer. I also use a larger filter, I can look up the number if you would like. In conjuction with the RP I always use Zmax as well. This all may be overkill especially with my 34 row oil cooler but it gives me a piece of mind. If I find that the RP is not doing what I like I will switch to something like redline or amsol.

cjr1881

how do you use a RP filter that they don't make for NIssan 370Z?

CharleyGFX

I commute 36 to college and the same back every m/w/f. It's my daily driver too, so yeah. I put alot of mileage on it. My last oil change was the start of this month and I already have 1.5K on it.

Thanks for the info though, I'm gonna switch to M1. What do you guys recommend changing it at? 5-6 maybe? and what kinda filter is best with M1?

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"If you ain't crawling? you ain't balling"

Junior370z

I use M1 with a k&n filter. I'm sure there better filters out there but I'm happy with it.

I usually change every 5k.

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DON'T DO IT!

dad

What year, make, and model was that, that slugged?
7,500 is the limit for Synthetic oil, the OP is fine!

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We can do without any article of luxury we have never had; but once obtained, it is not in human nature to surrender it voluntary.

GZ3

i would switch...there are enough, rumors, stories or whatever floating around that actually makes you think. Royal P has one of those 50/50 reputations...thats enough for me NOT to want to use it

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09 GT-R
12' 370Z 7AT HANDED DOWN
12'+13' 5.0 SOLD

Waiz

I swtched also due to cost, M1 is pretty affordable if you buy the jugs from Walmart.

GZ3

Pennzoil Platinum is another REALLy good oil with great UOA's

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09 GT-R
12' 370Z 7AT HANDED DOWN
12'+13' 5.0 SOLD

Waiz

Good to know, I will keep an eye out for it.

darrinps

I second this, and if you check out Bob Is The Oil Guy reviews of it, you will see that many more people really like this stuff too!

Actually, I get the Ultra or whatever the newest formulation is. Excellent oil and at a fairly reasonable price. I change it every 5K miles and use a Purolator Pure 1 oil filter.

I do that even though I had free oil changes thrown in. They do the labor, but I buy the oil and filter because after doing my research, I firmly believe that this is cheap insurance.