K&n Oil Filters

[sammus]

how much are these worth? i usually just use ryco

[gt-t_r34]

about 20-25 bux compaired to ryco at around 10bux but k&n are very good.

[khunjeng]

I think I remember seeing the comparisons you mentioned, just remember something about the k&n's being the highest flow but not best filtering. I change my oil every 3000k's so I figured i'd go for flow over filtering....i dunno it all just seems to ring a bell...

yes

thats where I've had 2 on order for like a month

3k? why? what oil are u using?

Basically its a waste of time and money. Nearly all good (even group III) oils will go well over 3k OCIs under normal driving conditions. Track work, hmm different story and different grade required.

But if thats what u wanna do, thats cool. Just dont use any good oil as any decent oil with good addatives wont have time to do anything.

As for good oil filters, Mobil1 are pretty much the best off the shelf unit. Never bought one locally though. The K&N is of the same construction with a different filter media which doesn't filter as fine as the M1. Still better than most.

Here I found some more info

http://www.frankhunt.com/FRANK/corvette/ar...ilterstudy.html

[Omurru]

3k? why? what oil are u using?

Been experimenting with different oils etc. finding something good to use, benifits/downfalls of each. I found the mobil1 oil filters to be good but seem to get a more stable oil pressure with the K&N. The engine is fairly new too changed it the first couple of times just to make sure there were no particles or anything in the oil, cos the first time i changed it after I got the car it was pretty nasty. Although now I seem to be burning/leaking oil need to work out where and why, got a feeling it's of one of the turbo lines

[khunjeng]

Been experimenting with different oils etc. finding something good to use, benifits/downfalls of each. I found the mobil1 oil filters to be good but seem to get a more stable oil pressure with the K&N. The engine is fairly new too changed it the first couple of times just to make sure there were no particles or anything in the oil, cos the first time i changed it after I got the car it was pretty nasty. Although now I seem to be burning/leaking oil need to work out where and why, got a feeling it's of one of the turbo lines

yeah for breaking in an engine I guess u were using some mineral oil...good to make a few quick chnanges as u suggested.

Good info on the K&N. I might get myself one and try it out as I'm doing a oil chnage soon also.

How much oil u buring? rings not sealing? oil to thick? some oil usage is acceptable.

[Omurru]

About 500ml over 3000k's There's pretty much no smoke out the exhaust regardless...ever of any type so I dun think the rings are leaking. Oil i'm using at the moment is a full syn 5w30. Although I am still trying to work out some pressure issues as well, as I always seem to have 2kg/cm2ish regardless of rpm...I was under the impression oil pressure changes with rpm. Not sure yet if this is a true reading or an sensor/gauge fault....

[khunjeng]

About 500ml over 3000k's There's pretty much no smoke out the exhaust regardless...ever of any type so I dun think the rings are leaking. Oil i'm using at the moment is a full syn 5w30. Although I am still trying to work out some pressure issues as well, as I always seem to have 2kg/cm2ish regardless of rpm...I was under the impression oil pressure changes with rpm. Not sure yet if this is a true reading or an sensor/gauge fault....

If ur loosing oil and its not leaking anywhere then its being burnt. Probably not enough to notice any smoke.

I have been quoted from an SAE tech paper that 1qt every 1000miles is accetable However this has bee topic of discussion for some time. THerefore according to this u are within acceptable levels.

From memory, the oil pressure should be about middle @ 3000 rpm normally (think thats 4) . If ur unsure wack on a new pressure guage and check it out.

If ur using a 5W30...I would have thought that was perfect weight for a street driven car that gives great startup protection. I'm using a base 10W40 blended with 5W30 after some usage also.

[Omurru]

If ur loosing oil and its not leaking anywhere then its being burnt. Probably not enough to notice any smoke.

I don't wanna know that, it's practically a brand new engine it shouldn't be burning any When they first built it they had a problem with a couple of cylinders leaking but the engine was pulled appart again and new rings put in and they put 1000k's or so on it to run it in and assured me i wouldn't have a problem. I'll be taking it to racepace within the next couple of months when i have the new fuel system in so will see what they think.

yeh 5w30 seems to be good, though might go to a 10w60 or something for the track when i finally get there

[khunjeng]

I don't wanna know that, it's practically a brand new engine it shouldn't be burning any When they first built it they had a problem with a couple of cylinders leaking but the engine was pulled appart again and new rings put in and they put 1000k's or so on it to run it in and assured me i wouldn't have a problem. I'll be taking it to racepace within the next couple of months when i have the new fuel system in so will see what they think.

yeh 5w30 seems to be good, though might go to a 10w60 or something for the track when i finally get there

yeah for the track and more extreeme oil temps you will need a thicker oil. 60 is common.

'

As them what oil they are using to break in ur engine. I have herrd or people using full syn. oil for new engines...not good to bed down those rings.

Anyway back to the K&N oil filter stuff.

I just pulled apart two jap filters, one a Nissan one and one for my Mitsi. They were of high construction, metal end plates and good silcon bypass value, as aposed to the rubber. Tey have a good number of pleats (not to many to restrict flow) and used a syn. filter...not paper. Which filters better.

However I have done more more research on the K&N.

Conclusion, its one of the better filters out there for filtration and flow. I will be using one on my next oil change, however I must say the OEM Nissans looked good also so there is no drama there IMO.

Here are some links I read recently.

http://www.ntpog.org/reviews/filters/filters.shtml

http://www.shoclub.com/lubrication-oil/lub...on-oilpart5.htm

http://www.frankhunt.com/FRANK/corvette/ar...ters.html#avoid

[Omurru]

yeah for the track and more extreeme oil temps you will need a thicker oil. 60 is common.

'

As them what oil they are using to break in ur engine. I have herrd or people using full syn. oil for new engines...not good to bed down those rings.

Anyway back to the K&N oil filter stuff.

The engine was built by Mercury in Brisbane from what I have heard they are one of the better workshops up there had a chat to them before I bought the car about a number of things but that was one question I didn't ask, might give them a ring tomorrow and find out.

lol we have gone kinda off topic

I think the best thing about the k&n filters is definatley the hex head, after taking off the pureone one the other day K&N FTW! So much easier, especially on a GTR, heaps easier to access the filter on gtst's so not so much of an issue......

[khunjeng]

The engine was built by Mercury in Brisbane from what I have heard they are one of the better workshops up there had a chat to them before I bought the car about a number of things but that was one question I didn't ask, might give them a ring tomorrow and find out.

lol we have gone kinda off topic

I think the best thing about the k&n filters is definatley the hex head, after taking off the pureone one the other day K&N FTW! So much easier, especially on a GTR, heaps easier to access the filter on gtst's so not so much of an issue......

yeah I read about that...thats what convinced me!

***goes down to order some tomorrow!! hehe

[Omurru]

your in the east, they'll probally have them on the shelves

[khunjeng]

your in the east, they'll probally have them on the shelves

no luck...no rush im not doing an oil chnage for another few 1000s kms.