Who makes 'em with string?

[Yuk]

I just Dremeled open a used Nissan filter and found that the element is bound with string.
Does this mean Nissan filters are made by Purolator? Who else binds their filters with string?

 

[TC]

Purolator's the only one I know who does this. Evidently it sets the media in a circular pattern while the end cap glue sets? You can compare your Nissan filter base plate with a Purolator base plate to confirm your suspicions.

 

[Yuk]

How can I tell if the Purolator made "Nissan" filter is a Premium Plus, Pure One or some other category of filter?

 

[TC]

Purolator might custom tweek things to Nissan's requirements (if this is even a Purolator). But one indicator would be that PureOnes have an orange (silicone rubber) anti-drainback valve, while PPlus have black (nitrile rubber). The valves are visible throught the base plate holes.

 

[Yuk]

I haven't dissected a PureOne, but the guts of this Nissan filter sure look like what I've seen in posted photos. Right down to the orange (silicone rubber) anti-drainback valve.

 

[TC]

The base plate is always the givaway. The particular Purolator I'm holding (Honda and similar applications) has eight circular inlet holes, each the size of a small pea, and six crimps holding the gasket in place. If yours is the same, it's likely a Purolator, and specifically a PureOne if the flap is orange and the mating gasket has an orange-red Teflon coating.

 

[Yuk]

Eight holes: Yes

Six "crimps": Yes

Orange flap: Yes

Orange mating gasket: No (black)

Looks like a Pure One, but I guess 3 out of 4 isn't definitive.

 

[Ken2]

Denso of Japan and ArvinMeritor (makers of Purolator oil filters) started a joint venture called Purodenso in Jackson, Tennesse, to make oil filters mainly for Japanese branded cars made in the U.S. ArvinMeritor has been bought out, but perhaps their machinery and technology is being used for those U.S. made Denso oil filters with the Japanese car makers names.


Ken

 

[TC]

Interesting observations, Ken. Personally I guess I'd stick with PureOne over Nissan, assuming the pricing is competetive. That way you know you're getting the finer media (versus Premium Plus) and Teflon-coated gasket (a modest, but nice plus). No more sticking gaskets...