Made in Germany Mann HU6013z

You can visually determine filter efficiency?
Comparatively, yes. Product forums tend to go like this. The topic isn’t who is agreeing with the dominant voices, or who isn’t. I think you know it is looking at the light spots. Better, or worse, like at the eye doctor when you pick the clearest view.
 
Maybe it is the same media as the Boss.
Rock catcher 99% at 46 microns.
Maybe @ZeeOSix would like to chime in.
So you don’t think media can be changed as time marches on? I found the original German Mann cartridge much worse than a new Boss. It may be Mann improved their German media to equal the Boss now, don’t know. Probably not buying one to see, have no reason.
 
Maybe it is the same media as the Boss.
Rock catcher 99% at 46 microns.
Maybe @ZeeOSix would like to chime in.
@TiGeo shows in the video that the Mann is 99% @ 40u (must have got the efficiency spec from Mann), which isn't far off from the Boss at 99% >46u. So yeah, it very well could be the same media as the Boss.

So you don’t think media can be changed as time marches on? I found the original German Mann cartridge much worse than a new Boss. It may be Mann improved their German media to equal the Boss now ...
Guess you still haven't called Purolator and found out what the Boss efficiency is. You keep saying it's now "better", but have zero proof except some visual inspection of the media.
 
Comparatively, yes. Product forums tend to go like this. The topic isn’t who is agreeing with the dominant voices, or who isn’t. I think you know it is looking at the light spots. Better, or worse, like at the eye doctor when you pick the clearest view.
Apparently your method is flawed. Call Purolator and ask them what the efficiency of the Boss is rated at.
 
@TiGeo shows in the video that the Mann is 99% @ 40u (must have got the efficiency spec from Mann), which isn't far off from the Boss at 99% >46u. So yeah, it very well could be the same media as the Boss.


Guess you still haven't called Purolator and found out what the Boss efficiency is. You keep saying it's now "better", but have zero proof except some visual inspection of the media.

I believe that this video is from our friend @TiGeo

Correct. I bleieve I found the efficiency here on BITOG somewhere.
 
Neither WIX of Purolator are listing the efficiency of the Mann equivalent.
Google AI and Parts Source list the Mann HU6013 at 99% at 40 microns
 
I only put maybe 3000mi over 18 months on my TT3.2 at this point, so an OEM-spec cartridge type ( eg, Hengst) should be fine. I also use a magnetic drain plug for this (cast iron block) motor.
 
I used the Mann version on my 911 last oil change but the oil level gauge didn't like it for some reason..I'd been doing that oil change for 15 years, always 10qts out, 10qts in, and the level gauge was the same...with the Mann, the gauge was reading higher. Head scratcher until I changed back to the Mahle, and it went back...so I'll stay with the Chinese Mahle until someone tells me differently
 
I used the Mann version on my 911 last oil change but the oil level gauge didn't like it for some reason..I'd been doing that oil change for 15 years, always 10qts out, 10qts in, and the level gauge was the same...with the Mann, the gauge was reading higher. Head scratcher until I changed back to the Mahle, and it went back...so I'll stay with the Chinese Mahle until someone tells me differently
The oil filter affected the engine oil level? ... seems pretty strange. Is that filter a cartridge type or spin-on?
 
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The oil filter affected the engine oil level? ... seems pretty strange. Is that filter a cartridge type or spin-on?
I never understood how that could be either...but it wasn't too far off so I left it alone..the next change I put back a Mahle and it was "normal"..so I stopped trying to figure it out...That gauge is one of the "german engineering" quirks on the 911...the oil level gauge reading is only valid when the car is fully warmed up, sitting on level ground, and at idle... when you are driving along at highway speed the oil level gauge drops down into the red like you just purged all your oil..scary the first time you drive it if you aren't familiar. (it's a dry sump and the gauge is monitoring the level in the oil tank) The manual says never trust the gauge and always use the dipstick to check oil level!
 
Is that an air or water cooled 911 that takes …10 qts ?! Wow— the 6.5l ( 396ci) L35 big block in my ‘66 Impala only takes 6qts….
"Air" cooled, which really means "Oil" cooled. It actually holds 13 qts, but you can only retrieve 10 when you drain the oil (from the oil tank and the engine). That was one of the things that taught me not to obsess on extracting every ounce of old oil when i change oil in my other cars. Also, one lesson you have to learn is that the oil tank plug is a large diameter and the oil comes out pretty much all at once...the first time i drained it, i had one of those oil drain pans with a catch basin and a hole in the middle...well when i took off the car drain plug i got about 7 quarts of flaming hot oil all at once...overflowed the drain pan instantly and left an Exxon Valdez-sized river of oil going down my driveway!
 
Is that an air or water cooled 911 that takes …10 qts ?! Wow— the 6.5l ( 396ci) L35 big block in my ‘66 Impala only takes 6qts….
The new base 3.5 liter normally aspirated engine in a Ford cargo van takes 12 qts... now....
 
So, I guess the dry sump in the air-cooled 911 accounts for the large oil capacity?
Is that feature present ( along with an oil cooler ?) to help dissipate engine heat ( in addition to to the air cooling)?
Does the oil level gauge measure the level in the oil tank and the dipstick measures the level in the oil pan?
Speaking of German (over) engineering, my wife’s 2020 X3 M40i does not have a dipstick at all, only a sensor that reads out the level on the display screen, similarly when the vehicle is level, warmed up and running. ( This is also the way to check the hydraulic fluid level in a Turbo Hydramatic, but obviously with a dipstick….)
 
Does the oil level gauge measure the level in the oil tank and the dipstick measures the level in the oil pan?
If it's a true "dry sump" there isn't really any measurable level in the oil pan. The oil tank is where the oil is stored, like a typical oil pan would collect and store oil.
 
when you drain the oil, you get around 7 quarts out of the oil tank and 3 out of the pan...the pan drains like any other oil pan, with a manageable flow rate...the tank drains straight down and all at once..much larger diameter hole...so you have to be prepared!
Richfield, the dipstick also measures the oil tank...probably the worlds longest dipstick on a car. There is an oil cooler in the front of the car tucked in front of the right wheel..and long tubing to reach it from the back...which is where the other 3 quarts are hiding.

One time i had the bright idea of removing the oil like a Mercedes...with an oil extractor...but i didn't have enough tubing to reach the oil from the dipstick port.
BTW, my neighbor enjoyed the show of the oil river going down my driveway, but he did offer help in the form of those oil absorbing pads they use with boats (that soak up oil but not water)
 
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