Oil filters - one-way valve?

[halllon]

As I'm about to order an oil filter for my RB20DET, I have a few questions regarding oil filters in general. I've heard OEM oil filters have some sort of built-in one-way valve to prevent oil from draining back to the sump when ignition is shut off. This way, the oil pump doesn't have to fill the filter every time you start the engine. I've found a little on the subject here: http://www.ntpog.org/reviews/filters/filters.shtml. I think it should be easy to see if the filter has this valve by looking into the "holes".

So, how crucial is this feature (anti drainback-valve)?
Do the oil filters you sell feature this one-way valve?
Also, what's shipping costs for one of these filters sent to Norway?

Thanks.

 

[james]

Our filters do have the one-way valve built in
Do you really just want 1 oil filter sending to Norway?

 

[halllon]

Our filters do have the one-way valve built in
Do you really just want 1 oil filter sending to Norway?

Hehe, RB-engines are not very common in Norway, so delivery times are not too good and filters are quite expensive. You don't have to look into shipping costs for this single item, though, as I think I'll buy along a few other items in the lot.

Thanks.

 

[20vWill]

Hehe, RB-engines are not very common in Norway, so delivery times are not too good and filters are quite expensive. You don't have to look into shipping costs for this single item, though, as I think I'll buy along a few other items in the lot.

Thanks.

Talk to Ronnie at www.japantuning.no for RB tuning help in Norway.