Mann vs Mahle Air Filters

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Originally Posted by thai_tiger

why? because frantz filters will remove particles down to 2 microns. My brother bought one for xr6 many years ago and has refitted it to all new cars since, he swears by it. Oil stays cleaner for longer. A diesel might benefit even more but just wondered if any had tried.


The Science - Frantz Filters

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The Mann-Hummel centrifuge is a by-pass filter that removes soot down to 1 micron.
It's factory fitted. It's much more compact, efficient and much cleaner disposal than the old style toilet roll by-pass filters.

The TD5 has probably the best oil filtration system ever fitted to a small diesel engine. (although engines such as Toyota's 2H diesel had a centrifuge too. You could pull them apart to clean and literally peel the layer of soot out)
That's why the recommended oil change interval was 20,000km way back when diesel still had 500PPM sulphur levels and engine oils didn't have the levels of detergency/dispersency they do now.

You don't need a toilet roll by-pass filter, the engine already has something better. ;)

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Originally Posted by thai_tiger

why? because frantz filters will remove particles down to 2 microns. My brother bought one for xr6 many years ago and has refitted it to all new cars since, he swears by it. Oil stays cleaner for longer. A diesel might benefit even more but just wondered if any had tried.


The Science - Frantz Filters

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Then you would have to start up a different thread on dunny rolls, as different dunny rolls would have different filtering properties , some would get real anal [bigrolf] ( pardon the pun ) about the filtering properties.
I know for use there are different qualities of dunny paper, the newspaper harshness ones and the poke your finger through ones.

never knew that the centrifugal filter was so efficient wont be wasting my time on that then although worth asking the question.


thx

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Originally Posted by Roverlord off road spares

Then you would have to start up a different thread on dunny rolls, as different dunny rolls would have different filtering properties , some would get real anal [bigrolf] ( pardon the pun ) about the filtering properties.
I know for use there are different qualities of dunny paper, the newspaper harshness ones and the poke your finger through ones.

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I'd take a wild arsed guess and say Quilton would end up being the best !

It's the nicest I've tried on my botty and very strong. :D

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Originally Posted by thai_tiger

never knew that the centrifugal filter was so efficient wont be wasting my time on that then although worth asking the question.


thx

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Yep, they are good bits of gear.

Sorry for being a smart arse with the why?
A very wise person once said to me there's no such thing as a dumb question, only dumb mistakes.

I find it interesting the Toilet roll filter being that good it was moved vehicle to vehicle.

Put into context...

One of our mine bosses years back was given a shiny new Prado 120. He drove this vehicle like it was stolen.

As he left the business I adopted the vehicle and first task - drive 650km home to have it serviced.

Upon dropping it to the local Toyota Dealership I was met with some "stern looks".

We knew the MB had never serviced it, knew onsite fleet hadn't touched it. And it turned out that Toyota fleet hadn't seen it since it was delivered.

Total distance travelled - 79,438km

Same oil, same filters, same tyres... [emoji15]

That vehicle is still in the fleet and at well over 200,000km


My point?

Well any engine will likely be "ok" if kept a while with any reasonable filtration and servicing...

That must have been the 1 kz-te engine , couldn't see the kd series doing that
Good ad for Toyota's though [bigwhistle]

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Originally Posted by Roverlord off road spares

Then you would have to start up a different thread on dunny rolls, as different dunny rolls would have different filtering properties , some would get real anal [bigrolf] ( pardon the pun ) about the filtering properties.
I know for use there are different qualities of dunny paper, the newspaper harshness ones and the poke your finger through ones.

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According to their FAQ you shouldn't be using toilet paper in the toilet paper filters any more...

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http://www.frantzfilters.com.au/F.A.Q.htm#32
Can't I still use any brand or type of TP for my Frantz Oil Cleaner/Filter?
Most toilet rolls are no longer suitable because they are wound too loosely or are embossed resulting in poor filtration. For optimal performance of the Frantz oil cleaner/filter we recommend buying Frantz replacement elements which are specifically manfactured to achieve the best filtration.
What is the filter element made of?
The Frantz Filter element is made from a special grade of cellulose fibre and is densely compacted to provide effective sub-micron filtration.

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Originally Posted by twr7cx

According to their FAQ you shouldn't be using toilet paper in the toilet paper filters any more...

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Have you ever tried to get them in Australia the last time I tried I just couldnt get them I have an 11.4 litre motor that needs a set at the moment

I had a 30 min chat with one of the Engineering Manager for Mann Hummel about 3 months back. He told me that they study the genuine filters before designing their own. If they can meet the spec or exceed it, then they will release their own filter. If they dont meet the genuine spec, they wont release the product. So every Mann filter SHOULD at least be as good as the genuine. He was German and sounded knowledgable and trustworthy [biggrin]