OMG! Thanks for the insight. I never knew. So sad.:shakes head:

No problem. Other than the original OEM filter that was placed on the car at the factory, I've only used K&N or Purolator PureOne oil filters (although I'd also have no problem using Wix).

I've run RP in a 69 bigBlock Camaro drag car, a 68 Mustang FB roadracer, a 97 Dodge 2500 HD Ram, 07 Yota Tundra, 10 370Z, and a 11 Ford Raptor with no problem what so ever. However, I would caution using that oil to 8K miles. If you expose your vehicle to rough conditions or live in the desert you wanna think bout changing that oil WAY sooner. Redline is also a very good synth oil. Probably better then RP.

Royal Purple is not listed in the Wikipedia, most of the other synthetics are listed. But with Royal Purple being "extremely used, and popular", is not! "I would expect it to be there"!
So I'm toping off oil today, RP, family car. I've used RP for the last 21,000 miles. I'm getting ready to change oil, approaching 6,500 miles. "Curiosity gets me", I pick up my drop light, and look inside the oil port. Disappointed in what I'm seeing! "Oil build up", not a lot, or extreme. I expected better looking than what I saw. "Just enough build up, that I will no longer use RP"!
I'm checking out Amsoil and Redline, I have more reading to do.

Not trying to sound antagonistic. 6500 miles is on the high side for any oil. As you probably know. You want the oil to stay in the motor not drain away into the pan. Of course sludge is another matter. The thing about RP is that it looks used right out of the bottle. Amsoil and Redline are very good. I know a few racers that swear by it. RP is a very small company, as far as the petro business goes. Chevy swears by Mobil but Chevy as a company has been "crap" since the early 70's. They never really recovered fromt the great oil embargo. Even Vette race teams have told me to avoid Chevy replacement parts whenever possible. A friend of mine just blew up a 2010 Z06 goin 175. The Chevy mechanics said the bearings gave out probably from oil starvation. A 200+mph car blows at 175...either bad parts or inadequate oiling. Makes me wonder about Mobil & Chevy.

6,500 is average. Some people go up to 10,000 with synthetic oil(but very few). New models such as the Honda Accord. The recommended oil change is 10,000 miles, and I doubt if that oil is synthetic.
Welcome to the forum:tiphat:!

Thanks for the salutations Dad!! :roflpuke2: I guess you can run synth longer in softer climates. I did a lot of car and bike racing when I lived in Yuma, AZ. Pretty harsh place to live. If you waited to long to do preventive maintenance you'd find sand in your oil, radiator, airbox, etc! Between racing stuff and the harsh environment I got in the habit of changing that stuff WAY early.

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.

http://en.wikipedia.org/wiki/Royal_P..._manufacturer))

Oh ****! Rep point for you. I was wrong!

BMW cars make you change oils every 13-15k miles...Even in south Florida type weather.

I have used RP for 22k miles on the Z and not notices any problems... I have always been an M1 person, but RP seems to do just fine, as long as there is a max cap of 5k per oil change.

rubs hands over the glowing, welcoming warmth of a brand spankin' new rep point...Thanks! :D :tup:

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

If you go to myg37.com you will find a huge thread based just on oil. It is mostly people that have sent there oil samples to the lab. BTW Mobil 1 is by far the worst and Penzoil has the best test results. As far as Royal Purple I wouldnt think you would have a problem as long as ur running there standard weight oils and not their race oils. Race oils being 0w-X that give zero resistance on rotating parts for horsepower reasons.

Have any of y'all done an oil analysis after 6k to see if the RP is going bad or just judging by its color? I've run rotella in my diesel out to 10k miles and could have gone another 3k had I wantednto according the UOA's. Did the same thing with delo. My car has had regular old cheap castrol in it for the last 39k miles and a regular old wix filter and no issues to date. I recently switched to rp this past oil change but still a wix filter. Ill run this out to 6k and change it then and wont worry about it at all. Although I will switch to Mobil 1 cause its way cheaper and I saw no difference between rp and conventional oil.

Also, all oils designed to be run in diesel engines have very low zinc these days. Including rotella. If they didn't it would clog up and destroy the dpf filter on the truck. There's more to it than that but its 5am and I'm not typing it out on my phone.