Ash,
I heard about these some time ago and would also be interested in comments from those who have converted their old filters.
Surely they couldn't be any messier or more difficult to get to than the standard 'can' ?
Chris

Ash & Branko,
OK, I'll keep the paper filter - got a few dozen lying around the shed anyway. I've also heard a few bad stories about the spin on variety so I'm quite happy to keep the car original.
Also, I guess it's only messy for me because I usually run the motor to heat the oil and redissolve the nasty combustion acids (though this may be another urban myth) so the exhaust headers are still a bit warm when I get to that bit of then oil change routine.
Finally, the environmental concerns you mentioned are also very valid.
Thanks,
Chris

As far as I know the adaptor is very well made by the firm in Adelaide who market it (Italservice) - another great Australian design.
The stories I've heard concern the spin on filters themselves. Poor manufacture, internal leaks, high resistance etc. Not all of them are bad, but some just seem to have either initial design faults or poor quality control. The main perpetrator seems to be Fram, with Purolator being one of the best brands. On the other hand, the cartridge types (technocar) seem to be universally good.
I know none of this from first experience, just what I've read and heard.

The pictures show the various types of spin on filters and their contents plus the original cartidge type that we are all familiar with.

Chris.