You need to have a particle count added to the UOA (extra cost) to see particle size and counts.
is fram's extra guard 95% efficiency worrysome? or is it fine for low OCI?
- Thread starter apollo18
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Excellent adjunct information here. Some of it is repeated since either people cannot understand it or they haven't read it before.
This pertains to particles that are seen in the spectrographic analysis portion, not any particle count. I personally think particle counts are only somewhat useful without a corresponding SEM/EDX or other analysis of the particles themselves.
UOAs of same car, but with thick and thin (xw-20)
Does anyone here have UOAs that show multiple reports--at least one from a thicker oil, and at least one from a thinner (0w20 or 5w20) oil? I'd love to compare how both oils did in the same engine. Yes, there are plenty of stellar reports from cars that run thick or thin, but just doing one...
bobistheoilguy.com
Hypothetical Question About Method Of UOA's
This came across my mind the other day about taking UOA's. On my Harley, there is a 'system' you can buy to run all the old oil out of the system during an oil change. It involves the use of a filter block and is a screw on 'cap' that fits where the oil filter is, and simply reroutes the oil...
bobistheoilguy.com
Amsoil EA15K51 - 42,938 miles with UOA's and PC's
Posting for DrDave, he will be along to explain:
bobistheoilguy.com
10w-30 vs 5w-40 question
Originally Posted By: dnewton3 Many of you still don't understand the concepts of macro and micro data analysis. That we understand. We we don't understand is why you continually inflate this "analysis" into something far beyond what it is, and always act as if you have obtained some sort of...
bobistheoilguy.com
A rather general overview of particle counts:
Oil Analysis vs. Microscopic Debris Analysis: When and Why to Choose
For situations where spectrochemical oil analysis alone may not provide the most complete machinery wear profile, the results from specialized microscopic and instrument-based tests that focus on...
www.machinerylubrication.com
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Not a big deal. Even the well renowned Wix is 95% at 20 microns.
Most wear occurs from particles that are much smaller than that.
The best oil filter is an air filter
The best filtering scheme combination is a good air filter + a good oil filter. Anything that gets past the air filter and into the sump (along with internal engine debris generation) will get captured by a good oil filter. The oil filter is the only filter that is the last line of defense to keep the oil clean.
No, the best oil filter is one with high filtering efficiency.
But I agree it is a good idea to have a good air filter as well.
20 microns isn't? They'll capture smaller particles as well.
BrendanC
$100 site donor 2024
12” diameter donaldson 6637 matched with a OG wire backed FS3675 for me. no fiber end caps going on anything i own.
I consider efficiency of 95% @ 20u or better adequate for 5-7.5K OCIs. Above that, 99% @ 20u or better would would be more ideal. The longer the OCI, the better to use higher filtration. Wear from dirty oil is dependant on the oil cleanliness level and the duration the oil is pumped through the engine.
I'm not someone that will re-use a filter, regardless of OCI. I'm still going to buy the best filter I can for all of my vehicles, whether is a Fram Endurance or something else. $8-$12 every 5k-6k miles (which takes me on average 6 months) doesn't bother me.
Yep, some here go high efficiency regardless of OCI because why not if paying a bit more for a filter doesn't really matter to who's buying stuff to maintain the vehicle. I do the same most of the time.
