I had a 1990 300zx Na for years I used Redline in it, the car had 132,000 miles on it when I just recently sold it (running fine) At one point a couple of years ago I switched to Pennzoil 10-30 and sometime after that I did notice "ticking" sounds comming from the engine. I thought it might have been something else, but now that I have read this post there is a good possibility that my switching to a less expensive oil my have been the difference. as soon as my 370z is broken in, redline is the oil thats going in it.

I experienced the opposite situation………I heard upper valve ticking with the Nissan break-in oil and switched to Pennzoil Platinum 5-30 @ 1.9K and now the ticking is non-existent and runs a little cooler!

Is the platinum Pennzoil a synthetic? I was just using the regular 10-30 oil. That may be why mine started "ticking" and yours stopped. either that or maybe i dropped my watch down by the intake somewhere? lol.

Pennzoil Platinum is a full synthetic that is highly rated.

I was thinking of changing my "break in" OEM oil a little early 1500-2000 miles and was wondering if that is too quick to replace with Redline or should I go back with Nissan's Ester blend for another 2K-3K miles and then go with Redline?

Thanks!

That's exactly what I did. Changed OEM at 2000 miles, drove around regular oil for another 1800 miles. 3800 miles = Redline Synthetic. :tup:

I haven't tried PP, but I'm torn between it and Red Line.

However, I thought PP was a group III oil so it wasn't a full synthetic?

Hey AK, did you go back with Nissan Ester or some other dino oil?

mustang did you order the oil, or purchase locally?

I'm approaching the 3,750 and am going to do the Red Line. How man quarts are needed...6? I don't have the manual on me....I'm at work.

You'll need 6 but will probably use 5 1/2.

^^ Cool...thx bro.

Would you be voiding your engine warranty if you do DIY change oil? Thanks

No, just keep the receipts & log the interval ;)