[dafish]

A cross reference may not be adequate in any event. I'll let you look into the M1 fitler specs, but here are the three important criteria you need to consider:

#1 Thread type.
#2 Be very careful of o-ring diameter. Our filter base has very little "pad" for the o-ring to seat onto. I would not take anything larger than the Wix.
#3 Physical width size. We also have little extra OD diameter to spare. Certainly no more than 1/8".

As to height, the newer machines, those with the drain lip added to the base, require an even shorter filter. I would not encourage going longer, but I suppose that's your decision to make.

You'll hear a lot of concern about other filter characteristics, but none are all that big of deal.

Now some advice:
It's not like the M1 is a great filter. They consistently test rather "meh". If you're trying to make your life easier, consider standardizing on the little bit shorter one and use it on the wifes car too.

Meanwhile the best filter you can get is the Fram Ulta-guard, Failing that I'd use the Wix or the Purolater well before the Mobile 1. But since Walmart carries the Fram in stock this is all a pretty easy decision.

Might want to glance at this:

Engine Oil Thoughts: What To Use, When, And Why

This thread attempts to discuss the best options for engine oil for our Rzr’s. This as much for the forums benefit as it is for my own. The first post will be reserved for conclusions while the next several will dig in a little. This is hardly a deep dive into tribology. If you really want...

www.rzrforums.net

 

[dafish]

Little to hate.

In the race for filtration quality we really care about only two things: Filtrartion as measured by the beta ratio, and flow capacity. I lean towards larger filter so that I'm in bypass when oil is cold the least amount of time possible, but I don't let that influence me much. If you're happy with the nissan filtration, and I assume it's reasonable, why not?

 

[dafish]

duneraz

Respectfully, no sir. you’re twenty years behind. Which is what happens with myths. If you’ll do a little research, even here, you’ll find I’ve done quite a bit of research. You‘ll also find the top two frams,that’s the tough guard and the ultra guard, are presently the most well regarded and tested, filters commonly available.

you may look on bitog, or here, for yourself. here is a start. Try post #2.

RZR Maintenance -Oils and Filters - The Quick and Dirty...

This post updated 7/14/21 Disclaimer: This summary is written for those that ask me “ what should I use, and I don’t want to read why”, both online and IRL. I’m hopeful this helps us all. It is, however, only one man’s opinions. Break-In Steps: Immediately: Replace the stock air filter...

www.rzrforums.net

in ant event, the old myth you refers to what is often called the “orange can of death”, and a cheapo filter is not this discussion.

 

[dafish]

Rzrturbo

in the pecking order that’s a fair enough assessment, if for no other reason we care most about cold start wear. However, most significant engine wear beyond cold start is generally found in contaminants in the 2 to 20 micron area. Looking for a better filtration (beta ratio), in this range does reduce that wear. Since it’s cheap to run a better filter, why not?

 

[dafish]

Indeed.

I should also add this same focus on 2u to 20u filtration is the same area of concern in air filters. This is why the offroad crowd won't have anything to do with K&N air filters.

 

[dafish]

Nice call stew.

All:
TG uses the card-board top inner media seal and the good media while UG uses a metal one and the good media. Either offers some of the best filtration I can find (damn, now I sound like a f'n commercial). I have no hesitation using either.

Many folks that buy into the cut-open method as something meaningfull seemingly subscribe to a few interesting beliefs. Some like the cardboard because it won't rust no matter what shelf it sat on, and it's cheaper. Other think it means it's "cheap" and won't have anything to do with it. I've seen little to nothing to suggest that carboard seal is actually flawed though. You'd have to ask them why it matters so much, I can't really explain it.

Anyway, if you'll spend some time reading on BITOG this has been done to death, and in some cases by some pretty talented guys. If you look enough Fram had one of the product managers answering questions for a few years too (I've been reading BITOG off and on since Bob started it).

Mind you I don't want to undermine anybody's belief. Heck it ain't my machine, and this ain't life or death. I can offer onlyi this: As an analyst I had to learn to avoid things like confirmation bias, and ultimately learned to seek hard data and large sample sets. For me the litmus of a filter isn't in a Youtube video of a cut-down, it's in something called "beta ratios". Once you get into the mertrics of actual peformance it's pretty obvious.

Lets also agree a Wix or a Purolater is hardly bottom feeder filters. Best no longer, but pretty darn good? Sure!

But to each his own, and God speed to all.

-d