[WISledder]

Oil Filter:
Prior to 2019

Fram UltraGuard XG7317. TG7317 is next up and probably fine, and then Wix 51356/51357 twins (the latter has anti-drain back in inlet and outlet) or the Napa private label clones 1356/1357. I’ve no reason to denigrate the Poo factory filter, but in that the standard engine oil and air filter aren’t impressive I’m not inclined to be charitable, and I’m certainly not going out of my way to go buy one.​

2019 and After:

Poo added an oil spill guard on at least some models, and that made space a little tight. If that's your situation and/or you can't fit the 7317 then use the 6607, the next shorter model. (XG or TG6607)​

​

Yes, I know Fram's orange filters have a bad reputation. That has nothing to do with these filters. These are as good as can be had. The top of the line.

dafish, you should do an update to the filter portion; all other parts of this guide are still spot on today from what I can tell.

3 parts of an oil filter should be considered; filtering ability, flow rate, and capacity.

• filtering ability: how good is the filter at removing particles from the oil
• flow rate: how much oil/pressure can the filter handle before the bypass opens
• capacity: how long till the filter media becomes clogged forcing the bypass to open to maintain flow

Did some of my own research on this and the results:

#1 Purolator BOSS PBL14612

• #3 in filtering, great flow rate, and #1 in capacity
• Filtering in the top 3, you cant go wrong, and with great flow rates and best in class capacity, this is easily the winner.

#2 Amsoil
- #1 in filtering, poor flow rates, and one of the worse in capacity. Capacity may not matter if you are changing your oil/filter regularly.

#3 FRAM Endurance FE6607
- #2 in filtering, average flow rate, and again one of the worse in capacity, but like the Amsoil this shouldnt matter much.

Now for the previous recommendations:
the FRAM Ultra Synthetic (XG) I currently run this, next change will be switching to the BOSS, they are the same price so why not?
- #4 in filtering, but has worst-in-class flow rate, capacity is #4 this is great but again one of the more meaningless specs

FRAM Tough Guard, junk!
- #9 in filtering, worse-in-class flow rate, and average capacity

Main source for my info comes from here Youtube I also was going through BITOG and various other stuff, and most are in agreement. *This is just 1 persons opinion, I'm not an expert, and I dont do this for a living; What I can do is read, compare, and come up with my own conclusions.

 

[TomBo12]

So.....if I was to run the Mobil 1 5w-50 oil, how much ZDDP would I add? My machine is still under warranty, so I want to keep to the 5w-50. According to my dealer the PS4 Extreme oil is a 5w-50 and they told me as long as I keep to that weight my warranty is good to go.....any thoughts?

Interesting, a guy who did oil analysis for a living said he used Mobile 1 5w-20 in his truck engine and did a test on the Walmart SuperTech oil brand and he showed the tests side by side and found that the Supertech was a better oil, SuperTech is made by Warren Oil which makes Costco and some other private branded oils.

 

[Duneflyer]

Since you brought it up...

 

[ssadiver1]

dafish, you should do an update to the filter portion; all other parts of this guide are still spot on today from what I can tell.

3 parts of an oil filter should be considered; filtering ability, flow rate, and capacity.

• filtering ability: how good is the filter at removing particles from the oil
• flow rate: how much oil/pressure can the filter handle before the bypass opens
• capacity: how long till the filter media becomes clogged forcing the bypass to open to maintain flow

Did some of my own research on this and the results:

#1 Purolator BOSS PBL14612

• #3 in filtering, great flow rate, and #1 in capacity
• Filtering in the top 3, you cant go wrong, and with great flow rates and best in class capacity, this is easily the winner.

#2 Amsoil
- #1 in filtering, poor flow rates, and one of the worse in capacity. Capacity may not matter if you are changing your oil/filter regularly.

#3 FRAM Endurance FE6607
- #2 in filtering, average flow rate, and again one of the worse in capacity, but like the Amsoil this shouldnt matter much.

Now for the previous recommendations:
the FRAM Ultra Synthetic (XG) I currently run this, next change will be switching to the BOSS, they are the same price so why not?
- #4 in filtering, but has worst-in-class flow rate, capacity is #4 this is great but again one of the more meaningless specs

FRAM Tough Guard, junk!
- #9 in filtering, worse-in-class flow rate, and average capacity

Main source for my info comes from here Youtube I also was going through BITOG and various other stuff, and most are in agreement. *This is just 1 persons opinion, I'm not an expert, and I dont do this for a living; What I can do is read, compare, and come up with my own conclusions.

Hi Sledder,
You left out one very important thing to look for. The "By-pass pressure". Those filters you listed like Fram and many auto filters only have a by-pass pressure of 13-15 psi, but we need an 18-22 psi for our filter. Make sure you research this before installing any other filter. They make a Pure-One filter that fits all the specs.
p.s.
I do this type of maint. research for Rotax engines (also 18-22 psi) so it just flows over to the Razor's.

 

[WISledder]

Hi Sledder,
You left out one very important thing to look for. The "By-pass pressure". Those filters you listed like Fram and many auto filters only have a by-pass pressure of 13-15 psi, but we need an 18-22 psi for our filter. Make sure you research this before installing any other filter. They make a Pure-One filter that fits all the specs.
p.s.
I do this type of maint. research for Rotax engines (also 18-22 psi) so it just flows over to the Razor's.

Correct me if I'm wrong please, but I thought that was the other way around? I cant find a spec for the Rzr, so I cant comment on the 18-22 relief, best I could find it this on Polairs website "Bypass Valve: The bypass valve provides optimal oil flow and allows unfiltered oil to circulate in case the filter becomes clogged, preventing damage to the engine."

Purolator doesnt recommend the "Boss" in motorcycles and other small engine motorsports because they have a high pressure relief on them. In motorcycles and some of these small engines they have a much lower pressure, so if you put a Boss on them it will just clog eventually and cut off the oil supply because the relief cant open. Our RZRs dont apply to this because our pumps will push 45psi, enough to open the relief should the filter become clogged. I guess there is the possibility of cold oil having enough pressure to force the valve open if the relief is too low as your suggesting, again idk?

For those low pressure applications, Purolator makes the "Sport". These are the same filter as the Purolator "One" but have a relief pressure of 11-14.

The Fram XG is rated at 13PSI (no range)
Cant find for the Polaris filters
Cant find for AMSOil, but I did see a post saying its 17PSI. If this is the same filter as the WIX thats rated at 11-17psi

Be great to have a listing, relief pressure not something I ever really thought of.

 

[Bullitt427]

Correct me if I'm wrong please, but I thought that was the other way around? I cant find a spec for the Rzr, so I cant comment on the 18-22 relief, best I could find it this on Polairs website "Bypass Valve: The bypass valve provides optimal oil flow and allows unfiltered oil to circulate in case the filter becomes clogged, preventing damage to the engine."

Purolator doesnt recommend the "Boss" in motorcycles and other small engine motorsports because they have a high pressure relief on them. In motorcycles and some of these small engines they have a much lower pressure, so if you put a Boss on them it will just clog eventually and cut off the oil supply because the relief cant open. Our RZRs dont apply to this because our pumps will push 45psi, enough to open the relief should the filter become clogged. I guess there is the possibility of cold oil having enough pressure to force the valve open if the relief is too low as your suggesting, again idk?

For those low pressure applications, Purolator makes the "Sport". These are the same filter as the Purolator "One" but have a relief pressure of 11-14.

The Fram XG is rated at 13PSI (no range)
Cant find for the Polaris filters
Cant find for AMSOil, but I did see a post saying its 17PSI. If this is the same filter as the WIX thats rated at 11-17psi

Be great to have a listing, relief pressure not something I ever really thought of.

oil filters rarely “clog”, if they did you have serious issues to resolve other than what psi a filter is set to relieve.

It has more to do with cold starts and the oil being allowed to bypass while cold and under higher pressure. The other benefit is at high RPM while again the oil is at higher PSI that what the filter media can keep up with.

 

[Chapstick]

Why did I change oil filter direction?

In years past I considered Purolator the absolute top of the heap oil filter. When Mann Hummel bought them they screwed their product and QC up and the dreaded media tearing resulted. MH has to date, nearly ten years later, found it more profitable to keep the profits and live with the fall-out of the few that know better. My backup had always been Wix, and so I quickly switched over (save for hi RPM powersports, where I use K&N. For the moment).

However, I’ve spent some time considering engine filtration (mostly air), and I’ve been forced to evaluate what efficiency level I seek, and at what cost (power, convenience, dollars). That led to the surprising leaning that Fram has risen from the “Orange-Can-Of-Death” and now also (they still make some crap) offer some pretty good filters. Filters that meet the 99% filtration rate of my once beloved Purolater and meet the quality and construction of the Wix (Frams Ultra series). They also make one that is quite probably close enough in quality in the Tough Guard series.

That undermined the Wix. It’s at best 99% efficient at 23 microns, and at 20um, where the Purolater and Frame are rated, its was at 95%. Lower than I want. Even more importantly, I was finding it a hassle and a cost to buy the Wix. They weren’t at Wally world nor my local Farm & Cheat, so… But the Fram is at both, and discounted enough to be practical. The final stake? I just learned Mann Hammel bought Wix a few years ago.

OK, I’m not too bright, but better filtration, more reliable construction, easier to find, and cheaper? And I’m not funding MH? OK, sold.

Now in deference to Roger Lee, a fellow member, I’d be remiss to not mention he feels more attention should be paid to bypass pressure rating than I do. He prefers to see 14-18 PSI. If that’s your cup of tea than I can suggest staying with the Poo oil filter (of unknown pressure rating), accepting the risk of the Purolater and media tears (it’s rated at 14-18, his preference), or once again the Fram at 13. I sort of think he’s a long time fan of Purolater and uses the bypass spec as a way to specify Purolater, but perhaps you, or he, can find some support of a select bypass pressure range. I cannot. In fact, as a generalization, I consider it largely insignificant. But then I run synthetic oils, change filters often, and use oils that flow appropriate to the ambient temperature too, so…

I should also mention I don’t buy-into the boutique brand oil filters like K&N, RP, Mobile 1, etc. Last I knew these were all made by champion labs and not particularly better filters so… Worse, I just never seem to see any actual peformance specs on them, and that just bugs me. On the other hand I have no reason to suggest they aren't a good choice either, and as I've mentioned, run a K&N in my Vmax, so..

BTW, Motorcraft filters are made by Purolator, as are Bosch.

So there you go, why I've switched brands....

How much of the motul do I need for rear diff? Your post says 1l but online it says 44 oz

 

[185EZ]

How much of the motul do I need for rear diff? Your post says 1l but online it says 44 oz

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