Thread: Z9 oil filter instead of Z89A

It will only happen if you say hit the bitumin after dirt and there is an unseen step up of several inches as often happens. Unless you live in Victoria where councils have plenty of money to neatly grade dirt roads.
Regards Philip A

Originally Posted by glenhendry

Months later, the Z9 is performing fine and hasnt been hit by any P38 parts.

Told you it would be fine, at $5 a pop it seems stupid to me not to use them especially as our diffs are on the left side and are well out of the way. Never had a problem using them on the two 3.9 Classics I have owned either

Hmmmm.Saving of $5 every 6 months Vs possible loss of $8000 if filter punctured and oil flows out.

Not good odds to me.

Regards Philip A

Originally Posted by PhilipA

Hmmmm.Saving of $5 every 6 months Vs possible loss of $8000 if filter punctured and oil flows out.

Not good odds to me.

Regards Philip A

I would suggest you stick your head under a p38 and look at the room. If something is going to penetrate the oil filter it will be an outside object which could effect any oil filter. I dont know you, your car or what driving you do to give your opinion.
My cars gets their necks rung off-road as often as possible, and I have been doing so since 1976 always in a V8 rover. Some of us have not got money to flash around and for me every penny helps. I probably do 6 to 8 oil changes a year.

I did my oils two weeks ago and got the filter from super cheap. The price for the 89a was only two dollars more than the z9. Previously the 89a was around $20 but now they are less than $10. May be different in other states. They were the ryco brand.

I wheel the P38 pretty hard, I dont think a step-up from dirt to bitumen is going to flex the suspension more that what I put it through

FWIW the genuine ERR3340 is usually pretty keenly priced too.

It's been years since I bought one but they were about the same or a cheaper price than the Z89A Ryco.

I have Z9 on my D1.
the 93 [auto] has sandwich filter.and the oil filer clears the chasis by about an inch.
the 94 [3.9 auto] has the cooler in the timing case and the hoses fowl filter.

to damage it you have to hit or be towing something or break a mounting-and that never happens.

Z89a had non return valve-i think it would be hard to find a spin on filter that has no antisyphon flap these days..


Z9 are getting hard to get and its been some time since i seen $3.50 filters.
he idea was im brainwashed that the small filter flows oil quicker to the engine on startup.[re:I use a Z9].

my nissan RB6cyl-skyline.comes with a range of filters.Z9/Z115 was used as a oil flow FIX for vehicles that had that anoying oil light on at idle.
original is Z145a-you have to check if the oring fits on every oil change as the use different dia these days.
the nissan filter has no bypass valve-just a relif valve.the bypass is in the block.
last trip to the dealer and a check with my spare manual the filter superceeded to a tiny thing.Z442-86mmX68mm.oring was tiny.