Ford Focus Forum banner
21 - 30 of 30 Posts
Pezv: While I appreciate you concerns I've used these filters (Purolator Pure One 20195) for several years now without any issues.

This model of filter dose not extend as far as the bottom of the engine so if one were to "damage it on a curb" one would most likely take out the bottom of the engine as there is nothing to stop the impact before the engine.

I would hope we would take enough care of our cars not to run over curbs though.

As with any modification you do to your car there is some risk and any engine related parts should be carefully inspected prior to and during installation.
 
Thats cool, and I may look at that filter next time around. When the duratec was still new, there were several issues with Ford dealerships using the larger filter...in a few cases, they payed for new engines. I am sure many quick lube places made the same mistake.

While careful drivers such as yourself will never likely hit a curb at just the right spot....think of all the A to B drivers who wouldn't care, etc. That said, I most places now stock the correct filter size...so it isn't much of a concern anymore.


I am debating using an oil take of plate, and running a dual filter mount with some FL1A sized filters (same threads, bypass, but much larger). That would increase oil capacity by about two quarts, and reduce the chances of the filters going into bypass (run in parallel).
Not that motivatd however...so I most likely won't get around too it.
 
Pzev. For years to a PROFESSIONAL i have been sending my oil for analysis. Through their recommendations they have made me aware of many things and one is that while both are important, a filters flow is more important. The ability of the filter to stay out of bypass is most important. Through my questioning of M1 versus K&n i have been told that the K&n has much better flow charachteristics. And the professionals tell me that flow is more important to better engine oiling and longevity. I'll take a lubricant analysis professionals word over anything i hear or read on the internet.
 
Who told you the K&N has better flow characteristics? What test did they run? What application was the tested filter specified for?

By your logic, a simple screen would yield the best performance, as it offers the highest flow rate. History has told us that such applications are prone to short engine life, and I doubt anyone would run a course screen as their only source of oil filtration.
The actual truth is that oiling systems that incorporate a bypass filter...rated to roughly 3 Microns or smaller, yield the highest oil and engine life. Numerous "professionals" can attest to this fact....so can countless UOA's and engine tear downs.

So why is it systems that actually reduce oil flow through an engine yield the greatest performance in regards to oil cleanliness and engine life?
Its because large particle contaminants roughly 5-20 microns in size are the primary cause of engine wear, in addition to cold starts.
So while oil flow is critical for an engine, if your pumping sandpaper through your block your not going to make it very far.


Additionally, without doing an experiment to determine the pressure drop across various competing filters, and when our cars go into bypass, this argument is moot.
The internal design of K&N filters are Identical to M1....I have taken them apart (used of course), and so have countless others. The only difference lies in the filtering media chosen and quantity of it, and I can assure you the difference between them is small.



Either way, say high to your professional for me. I'll make sure to send a letter when I roll past 300k miles using flow killing super restrictive filters.
 
Your dramatic answer is making me chuckle this saturday morning. Thank you. I have never stated that filtering of a M1 is restrictive and deadly to a motor. Thanks again for the laugh by the way. I have 350,000 miles on a 96 v8 explorer so he has seen a motor with a little bit of mileage. 300 grand run on fram filters so i guess that debunks the fram is garbage argument. What kills a motor is not changing the oil and improper maintainance. In 5000 miles even the lowest quality oil and filter combination will run for an extremely long time in a very well maintained engine. It's not the oil and it's not the filter that matters. It's maintainance. To say that my comments that one filter flows better than another and turning it into me saying the other kills motors is amusing.
 
Discussion starter · #26 ·
You guys are funny.

I'm going to run that big, honkin Purolator. Hope I can fit an extra 1/2 quart in there. Plus, gold is cool.
 
Discussion starter · #28 ·
Hug It Out!
 
Discussion starter · #29 ·
After a close look and some measuring, I have decided NOT to go with the longer filter. Too close to the ground for my comfort level. I have decided to stick with Royal Purple and push it for 20,000 miles this time. I'll change the filter (PureOne) at 10K and top it off. The RP I took out of my truck after ten thousand looked great. I towed quite a bit this summer with it too.

What do you think, am I :screwy: ?

By the way, buy your royal purple on Amazon.com. I got a case of 12 qts for $88 and change. That's $7.41 per qt. It's $8.99 at Auto Zone.
 
pitchblackst...Assume nothing from the appearance of your oil. It means nothing whatsoever. Do an oil analysis to tell you how far to go. Use an amsoil EaO filter every other change.
 
21 - 30 of 30 Posts