I just changed my oil with:

http://i43.tinypic.com/krri9.jpg

I cannot find PureOne filter, staying with K&N HP for now.

Amazon.com: Purolator PL14610 PureONE Oil Filter, Pack of 1: Automotive

I've done 2 oil changes with Red Line and the PureONE filter :driving:

Other than price why wouldn't you put a "racing synthetic oil" in the Z. Granted its overkill but Motul makes an ester oil for race applications.

Since someone brought this thread back from the dead.....

I wish folks would do some research before posting incorrect information and starting internet rumor.

Purolator oil filters DO have a bypass valve as well as an anti drain back valve. They're one of the best oil filters for the money you can buy. Matter of fact, I don't know if you can even find an oil filter without a bypass valve anymore.

It's spring loaded steel and can be seen in the picture of a dissected PureOne filter below.

http://img.photobucket.com/albums/v1...0803-00146.jpg

Oil Filters



Please read it.

Oil filter analysis
 

Here is a link to a thread with a very detailed oil filter analysis including filtration efficiency and flow capability: The OFFICIAL Oil Filter Testing and Results Thread (4G63T/4B11T) - evolutionm.net

Very informative.

Entirely different platform

The only thing that is platform dependent in the thread is the Mitsubishi oil filter among the other major brands in the study. The entire study is in posts 1,2,3 in the thread. The results regarding filtering efficiency and flow capability in post 3 were not tied to any particular automobile engine. These were the ones that made this study especially interesting for selecting an oil filter for my z.

Oh man. I smell nothing but necro here.

I use to run Nissans ester oil but now I'm running Mobil 1 0w40 and I won't run anything else(maybe castrol 0w30 if I can't find M1 0w40)

Redline is good oil, but its expensive, M1 0w40 has all the same ratings as redline does and its cheaper.

My oil reports show m1 above 800 and redline above 1200 for zinc. To me that's like saying your cat will last only 33% longer if m1 is used. But since most cats last over ten years I could care less so far down the road.

What I do care about is m1 has almost no moly! Moly is the best protector of an engine period. M1 is 99 and RL is over 700! To me my bearings and vvel are more important than my cats. Also m1 is like water! I'd never use it again in a motor that runs hot and I'd never use it in a gtr with turbos. My WRX hated the m1 and the thin water would leak through the turbo seals. RL 5w40 stopped that from happening. RL FTW!

9300 miles was m1, the other 2 were RL 5w30. The reason for fuel in the last test was oil was changed without me warming the car up because I forgot.

PS!!! This was with a k&n filter! So people bitching about how they don't filter well can pound salt.

http://i39.photobucket.com/albums/e1...psd58a259d.jpg

My oil report says other wise!

Does it? Show reports then.

both redline and M1 0w40 meet the same european standards

it says it right on the box and on their websites, i could careless about a used oil analysis report, that doesn't mean anything if you change your oil every 3750 miles

if you like redline, thats great, i dont really care
no need to flame and be a fanboy because someone disagrees with the price associated with redline

EDIT: after looking at your posts it just proves what i said, you're running your oil much longer than you really should be and all i see from your reports is redline is overkill for the engine, its like running a 34row oil cooler on a N/A 370z that rarely sees track time

EDIT2:
looks like mobil1 0w40 meets many higher ratings that redline 5w30 european oil dont meet
again i got this from just a simple look on both manufactures websites

A UOA has a lot of good info in it regarding your motors wear and overall health no matter what your oil change interval is.

That's another great thing about a UOA. They tell you what interval is safe to run based on the breakdown of the oil. What are you basing your opinion on the appropriate OCI on?