Toyota Oil Filter (Made in Thailand) vs. the competition........

I heard that the RP filters were also Champion's premium line (K&N/M1).

Not crazy about RP oil though....

http://personal.linkline.com/rlockyer/oil/oil.xls

2000 miles in May and June, the 20w50 sheared down to a 30wt.
6000 miles in June, July, and August, the Mobil-1 20w50 just barely dipped into the 40wt range.

 

That would make since on the Royal Purple oil filters... It looks very close on a lot of parts

 

So what is everyone's take on this, from Amsoil's website:



Apparently the part # listed is a corolla filter

 

Got anything from someone other than Amsoil?
BTW: That PF48 is constructed similarly to Fram.

 

I came across this tonight, from a bitog member's own analysis

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2695083#Post2695083

 

^It will be interesting to see how much extra pressure drop the Amsoil filter suffers compared to OEM.

Do they salt the roads in Colorado? Your truck will wither away from rust long before the engine wears out...

 

There is such a thing as overkill.
The first comment is simply asinine. A 93% reduction in particles of a meaningless size is NOT the same as going from no filtration to having a filter.

Filtering particles much smaller than the gap between bearing surfaces falls under this category... and this filtration may come at the expense of flow/pressure drop and increased load on the oil pump drive mechanism.

40-50 microns? Big concern.
24 microns? Not a huge concern.
14 microns and below? What were his numbers on the new oil out of the bottle?
Modern engine specification MINIMUM clearance is .0005*D where D is the diameter of the journal. Max clearance is .001*D
For a 2.5" journal, that comes out to 32-64 microns.
Anything smaller than 32 microns will remain suspended within the oil and flow out of the bearing, and depending on where your engine falls in the spec, potentially anything as large as 64 microns will never bridge the film.
A human hair is typically between 60 and 90 microns for comparison.

The same applies to oil itself. Synthetic is a good thing, but conventional is "good enough" so long as it is changed regularly. Arguing how "this $10 synthetic oil is so much better than that $5 synthetic oil" is arguing how much MORE overkill is really needed.

Economics balances it out.
The EAO is a good filter... but the OEM is $4, the EAO is over $10, plus shipping. Likewise for the oil. Mobil-1 is good. So is Amsoil Signature.
But unless you are a dealer or "preferred customer", it's not worth it.
The cost to benefit is simply not there.
Amsoil's marketing then moves to improving the economy by going to extended change intervals... and in doing so, much of the benefit of the product gained in the first place is lost.


But Amsoil is good at marketing... almost as good as they are at making quality products. I'm not going to bash their products because they are good, and I have used them... but their marketing "machine" is a bit out of control. They issue spec sheets that over-emphasize issues, and their self-educated dealers take it and run with it, spreading a lot of misinformation and myth that didn't originate at corporate HQ, but corporate does nothing to dispel the exaggerations and often foolish claims of their dealers.

 

Supposedly, the modern synthetic media is not as restrictive as cellulose. Comparable media area is able to provide better filtration with an actual reduction in backpressure... vs filters like the PureOne (a very good filter) that simply stuff more media into the can, which does increase load.

 

I agree that the benefit is negligible until you get into higher OCI. I personally don't sweat a $6 difference in filter price, especially when amortized over as little as 5k miles.

 

The Amsoil filter is actually less tolerant of longer OCI, because it clogs faster...

 

Based on what data? A lot of people are running the amsoil filter over long OCI with good results.

 

Even with a bypass filtration system and 25k OCI, Amsoil recommends filter replacement of both the primary and bypass filter at 10k.

 

The filter listed for the tacoma (ea15k51) is rated for 15k/ 1 year. Where are you getting that number?

 

I was an Amsoil dealer in 2005-2007 during the early years of the EAO filter.

 

I wonder what filter is in my Taco right now... lol, yet another reason I need quality time with her to learn all the ins and outs. If it's anything other than the Toyota filter I'll be switching to that from now on! Great info.

 

Merely looking at a filter only gives part of the story. The quality testing results from testing done at actual labs is probably better for making an educated decision on what's what.

Personally, I just use factory oil filters with for whatever vehicle I own, because those generally have ended up being the better ones for your vehicle. Not to mention the filter size, media, and so forth has been taken into consideration with the recommended change intervals for that engine. Has been the case with every brand almost. Toyota guys say to buy Toyota filters. Subaru guys say to buy the Subaru filters, and Honda for Honda, and so forth. And on every forum there's that one guy who takes apart all the filters to show everyone the "quality" differences.

Honestly...if any of the filters were dangerous to your vehicle on the whole, they wouldn't pass the testing and wouldn't be sold. People wouldn't be buying them and cars wouldn't be lasting 100k and beyond with them.

 

Thanks for this Chris, I was using M1 filters until I came across this.

Quick question I didn't find an answer to in a quick search. I use Mobil 1 oil, and change my oil and rotate my tires every 5,000 miles.

I feel the oil is fine for 5k, but is the filter? Should I change the filter at a closer interval, say 2.5k? Thoughts or suggestions?

Thanks!

 

Great, thanks Chris!

 

Anyone have a link for the cheapest place to get these filters?
One of TW vendors (camelback toyota) has a great price (with shipping about $4.70 a piece), but when you go to check out they add a $3 handling charge.
Im not going to get hit at the final point of sale with an additional $3. Thx