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With offshore competition and the management mentality that one must show a good bottom line every month, it's a crap shoot as to whether the filter that looked so good on tests a couple of years ago is still the same today, or has been outsourced to a place with cheap labour and slack quality standards.
So you don't really know if Purolator or Wix or whatever are still as good. They all surely meet some kind of standard, so it's not a big risk. I use the Mann because they are either made in Germany, or in Argentina under supervision of the mother company, and are still the same as you get at the Volvo dealer's parts counter. It's hard to go wrong with OEM.
At one time we had 5 cars in the driveway that would take the W-917 (3 Volvos, my MGB and a Dodge Caravan) so I bought a couple of flats from FCP when they were $35 for 10 and free shipping, and still have a few years' worth squirreled away.
A good anti-drainback valve is important. Look at the angle the filter sits on the 240...it can empty out maybe 2/3 of its contents over time if the valve leaks.
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Bob: Son's XC70, daughter's 940, my 81 and 83 240's, 89 745 (V8) and S90. Also '77 MGB and some old motorcycles
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