Standard vs. Synthetic oil ?

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Aug 26, 2011 | 10:53 PM

#21

disc oh no

Recovery Vehicle

Joined: Nov 2010

Posts: 948

Likes: 36

From: New Hampshire

Quote:

Originally Posted by lordmorpheus

FWIW I run a Wix 51515 in my D2 for the larger capacity. I'll try to remember to check the Wix catalog for micron rating at work tomorrow.

Quick search of Wix website shows 25 microns. That's good enough for me. Rotella 15w40 changed every ~4,000 miles.

What exactly is the "micron" rating telling you? Is it the smaller the number, the smaller the particles it catches?

Aug 26, 2011 | 11:02 PM

#22

lordmorpheus

Pro Wrench

Joined: May 2010

Posts: 1,918

Likes: 86

From: St Louis MO

Particle size retention (filtration efficiency)
Particle size retention is the measure of the degree to which the filter can retain particles of various sizes... the automotive full-flow oil filter is able to trap and hold essentially all the contaminant particles larger than 25 microns. (A human hair measures approximately 70 microns in diameter. An object that is 1 micron in size is .000039 inches in diameter.) Our filters also capture a high percentage of even smaller particles.

Yes: the smaller the number, the smaller the particles it can catch. I edited my previous post, checking the part# I use, and it traps 21 micron particles.

Last edited by lordmorpheus; Aug 26, 2011 at 11:04 PM.

Aug 26, 2011 | 11:25 PM

#23

disc oh no

Recovery Vehicle

Joined: Nov 2010

Posts: 948

Likes: 36

From: New Hampshire

Thank you for the info. Lordmorpheus, I really appreciate you taking the time!

Aug 27, 2011 | 08:53 AM

#24

Spike555

Team Owner

Joined: Jun 2007

Posts: 26,212

Likes: 98

From: Grand Rapids MI

Quote:

Originally Posted by disc oh no

Thanks for the info. Spike. How do these NAPA and Purolator oil filters stack up against Mobil1 or Bosch or K&N? Don't they have some rating like... so many microns it can catch or something like that. I don't know the exact terminology or whatever but, are they comparable to these filters or are these more expensive filters truly any better? Just curious, Thanks again.

Well considering that over the road trucks use Wix oil filters 98% of the time, as well as farmers, both of which require and expect long life and minimal overhauls on their equipment use these filters I think they are good enough for me.
K&N oil filters are made by Fram.
Mobil 1 and Bosch oil filters are good, but over priced.
Unless you are going 10,000 miles between oil changes dont waste your money.

This one shows who made what filter.
Oil Filters Revealed - MiniMopar Resources

This one shows how well each filter filters.
GM Truck Central Oil Filter Comparison Study

I refuse to pay more than $6 for a oil filter, use a quality oil and a name brand filter and change your oil before it wears out and its all good.
Its just a engine, it can always be rebuilt or replaced.