Found this for power results.

The 2007 Synthetic Oil Shootout - My Pro Street

From what I've seen, Amsoil is in the top and one of the more proven formulas. Royal Purple tests very good but long term testing is still a bit lacking. I know RP was a total phenom in the local oil industry here but they don't have a long term presence in auto yet.

I'm surprised you didn't say "slick". :)

^^^^^ man that would have been good.

Royal Purple owns.

I'll be using Mobil1.

You go with what you know, been using it for a few years now. I change my oil every 7000 miles or so according to my oil life indicator.

In the new Z, not going to stretch it out so long.

What is an "oil life indicator"?

LOL! Oil life indicators aren't any sort of sensor. :D

Oil life is measured by how many miles you put on your oil. Basically it's a tripometer renamed. And they're not accurate to the driver.

Oil life is affected by the distance you drive at any one time, how hard you drive it, the speed you drive at, and the time between driving. There's no way that the "oil life" indicator takes any of that into account. Trust me.

I already love this forum. Learn something new everyday. :tup:

It was my understanding that the engine oil life indicators being put in most vehicles were a bit more sophisticated than just "miles traveled"...that they took into consideration variables such as hours of operation, engine speed, temperatures, etc.

I may be incorrect and/or maybe that the above doesn't apply to the 370Z???

I drive a 2007 Chevy Silverado Z71 (for a few more days). Not sure how its oil life indicator works.

Well, I can tell you that GM's seem to not care how hard you drive the car. In the 2 years I've owned my Solstice, it's been exactly 5000 miles for the oil life to be 0%. My Trans Am's "oil change" light came on at 3500 miles. I had that for 4 years and I can tell you that it was always the same mileage (By the sticker).

I don't see oil-life indicators ever being smart enough to work the way we'd expect.

I wasn't suggesting that they be relied upon as much as we should rely on our own common sense...but I did think they were supposed to be more than just set to come on at a predetermined mileage. :)

Well, it's not about being on-time with the oil. You can use the same oil for 100,000 miles in some cases. The issue is just reminding people that they NEED to do it.

100,000 miles in some cases? <what?

I know one case, actually, even though that was an exaggeration. My point is that it wont hurt your motor to go over the oil life's recommended life span, but the oil life indicator is mostly just a reminder.

If you are leaving oil in a car for 100K miles I don't ever want to buy a car you've owned and I don't care what kind of oil you used!!! :)

LOL! Nope. Like I said, I change the oil after every race day. Cars I don't race get their oil changed every 2-3 months (I only drive 300 miles a month). I know that's WAY early, but I get bored sometimes and decide to change the oil. :D

FWIW. I stopped by the dealer on Friday where I bought my 370 to see if the Service Dept. is open on Saturdays (no, damn it). I'm about to roll over 1,200 miles and I plan an oil change at that point. I wanted to know if they had one of these 30-minute-in-and-out-quick deals (no again, damn it).

In the course of the conversation, the Service Manager told me that I must use Nissan Ester oil and that an oil change would run about $120 (Jesus wept!!). I politely expressed my disbelief ("politely" = I resisted calling BULLSH!T) that Nissan made the use of their own oil a requirement. I told him that I just planned on using a regular high quality 5W30. The guy then tells me I had better read the fine print in the Warranty regarding the use of Nissan oil.

At this point I smelled smoke and, sure enough when I turned around, there it was being blown up my a$$. Needless to say, one thing is now sure to happen and one thing most definitely will not occur. I absolutely will make sure to tell the GM at this dealership about my conversation with his Service Manager. I will also tell the GM that I absolutely will not deal with his Service Dept.

BTW, the owner's manual says "NISSAN recommends Genuine NISSAN Ester Engine Oil, which is available at a NISSAN dealer." The Warranty does not "require" its use.

Why are you changing oil at 1,200 miles?

Actually, changing your oil VERY early in your engine's life is a very good thing to do.

All new engines being broken in will produce some metal shavings and things that are best taken out of the engine oil earlier rather than later...a good filter will catch most of them but if you really want to take care of your ride, the extra effort of changing the oil very early the first time is a good thing to do.

minimal of 2,000 in a new engine!

Royal Purple FAQs

That's whay my Accords owner's manual said. The car calculated temperatures, cold starts, speeds etc and gave you an estimated oil life.

Also it was claimed by the Honda service department that the oil in the car from the factory was "special" and I needed to leave it in there until 4k miles which I did. Not sure if it's the same with the Z or not.

i think im going to change the first engine oil for my z around 1k, then follow what is written on the stickerafter that :P

im changing mine at 3750 like most say than I'll prob change around 6k after that

No that 3000k mile stuff is BS. Just to make money. Oil is usually good for 5 -8 k. Our Oil Analyst said most are safe up to 13-15k. not sure you want to do that on such a god of a car but.

+1 on royal purple.

Just to keep it on the safe side, don't go past 7,500 on ANY synth' oil, and 3,500 on regular dino. That's one area where you don't wanna be stingy and/or negligent. Greetings!

First oil change at 1500 miles using regular Castrol GTX + Purolator PureOne filter.

2nd oil change will be at 3500 miles using again regular Castrol GTX 5w-30 and PureOne filter.

I will then do 3000 miles every time after that with Castrol GTX dino, until I reach 12500, then I will switch to Castrol Syntec European Formula 0w30 + PureOne filter for the rest of the car's life.

I did my first change at about 1250 miles. I refilled using the Nissan ester oil, and used a Mobil 1 number 110 filter which is slightly larger than the standard size. At about 5050 miles, I changed again to Redline 5W30 synthetic and a new Mobil 1 filter. My plan is to stick with Redline and 5K OCI's. The VQ37 engine, as we all know runs hot and a premium oil is important. While I have used dino oil like Pennzoil yellow bottle and Castrol GTX with good results in other cars for the last 30+ years. I wouldn't run anything except a good synthetic in the 370Z. The Nissan ester oil cost about $12 per qt. plus tax at the dealer, I bought a case of Redline for about $10 per quart delivered to my house. That was an easy decision to make.

I changed it at 250 and my next change will be at 3750. I bought the maintenance plan though the dealer, so the cost of the Ester oil is covered at intervals of 3750.

Could someone create an emoticon similar to the one :worthless without pictures" that says "Just folow the owners manual, stupid!"

I changed mine at 1200 miles

I did my first change at 3k, like most cars. It could easily be 6-7k.

Just changed my oil to 5w30 Redline today, my Z has 2,500 miles on it. The quart of Redline stated it's not for engine break in and recommended using it after 3,000 miles, didn't actually notice the label till after I changed it.

I changed to unicorn horn oil at 1243mi then to homogenized bull semen at 3750. I installed an oil filter made for a CAT 797 Hauler. All these concoctions and recipes make me nauseous!
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