higher efficiency & less flow restrict = less wear

[yota4me]

From a 1988 SAE test:
“Abrasive engine wear can be substantially reduced
with an increase in filter single pass efficiency. Compared
to a 40 (micron) filter, engine wear was reduced by 50% with 30 (micron) filtration. Likewise, wear was reduced by 70% with 15 (micron)filtration.
“Controlling the abrasive contaminants in the range
of 2 to 22 (micron) in the lube oil is necessary for controlling engine wear.
“The micron rating of a filter, as established in a single
pass efficiency type test, does an excellent job in indicating the filter’s ability to remove abrasive particles in the engine lube oil system.”

Donaldson's web site had info showing apprx 15 (if I recall correctly) degree cold flow temperature advantage of their Endurance filter media (same as Amsoil EA) compared to conventional cellulose filter media.

I use Amsoil EA filters because:
1) higher efficiency = less wear.
2) less flow restriction at startup = less wear.
3) longer effective service life.

 

[jbas]

well, I haven't seen too many others on here think this way - most have indicated that their UOAs show similar wear numbers, regardless of oil filter efficiency selected. The "Bob" even has written on here that (to paraphrase him loosely) the use of any filter - at all - may not affect performance/wear, and he's shown his test results without an oil filter to support that bold statement. Others on here have stated there is no "flow restriction" under routine driving conditions.

Are you talking over 100k miles? 250k miles? Doubt the filter selected would affect the routine range of engine performance for a normal life-of-vehicle ownership. Maybe good guidance is to buy the best inexpensive filter available.

 

[glenncof]

A 1988 test is 17 years old.

I think a few things have changed since then, notably better filter media.

Now it's a "cost effectiveness" issue.

Sure I'll give you $6.50 for an EaO and not use the MC FL-820S. I'll need to use the EaO x2 OCI and I'm confident it it better filtration. Sure I like better but not worth a lot.

 

[yota4me]

a GM study showed that engine life can be increased 2.7 times by using an oil filter with a SAE J1858 efficiency rating of 98.7% for particles of 10 micron size as opposed to/compared to using an economy grade filter with an efficiency rating of 98.7% @ 40 microns (150,000 miles for 40 micron filtration vs. 405,000 miles for 10 micron filtration).
Could be most most people don't keep their vehicles long enough to realize any benefit from better filtration/less cold start flow restriction.
The way I see it, the flow temperature difference between conventional cellulose & Amsoil EA or Donaldson Endurance filter media would only be an issue during cold starts.
Some people, like me, may be purchasing vehicles with 150,000+ miles on them & want to avoid engine wear issues (engine rebuild, oil burning, having to use thicker oil, reduced efficiency, etc.) as much as possible for as long as possible.

 

[glenncof]

So using a Pur. PureONE may only get me to 300K miles.

See http://theoildrop.server101.com/forums/s...ge=2#Post944693

 

[Gary Allan]

I'm sure that the 1988 rhetoric still applies. What it makes you assume is that the reduction in wear is associated with service life. It surely is in a vehicle that you drive perpetually and rebuild the engine on a routine basis.

Finer is better. Now whether it can be translated into 'more sensible' in your circumstances ..that's another story.

 

[yota4me]

Quote:

---

So using a Pur. PureONE may only get me to 300K miles.

See http://theoildrop.server101.com/forums/s...ge=2#Post944693

---

Per the GM study, looks like the Pure One would get you close to 400k miles engine life. I don't know how they defined engine life. I assume end of engine life means parts worn to out of spec condition. I assume that at some point, at or approaching that out of spec wear condition, car would start burning/using oil & efficiency (compression, etc.) would decline. Maybe you could go much longer in the out of spec condition by using thicker oil, adding oil more often, etc.?

 

[PandaBear]

From my days back in the FAB (clean room for semiconductor fabrication), we noticed that filter efficiency in a high flow environment is usually not as critical as closing the source of contamination. I personally believe that oil filter efficiency in terms of particle size may not be as critical as making sure it not going into bypass, having good seals on air intake, and the engine is not running rich.

Another thing is, most of the time if an engine is designed right, the lubrication filtration is not the limiting factor in its useful life. It is more likely that the gaskets, seals, tranny, suspensions, or electrical will go first.

 

[Nebraskan]

My suspension sort of went first, but HEY.... I fixed that with Cialis.