Just because an oil filter is the same shape and has the same locating
thread does NOT mean that it can automatically be used as a replacement
for an expensive proprietary filter. In particular, the filter element
has to be matched to the oil pump throughput and the casing must be
sufficiently stressed to withstand any applied pressure/suction.
Finally, the internal relief valve (if there is one!) must be set for
the correct pressure. Frankly, risking an expensive engine for the
sake of saving a few pounds/dollars is poor economics - and don't
expect any sympathy from the engine manufacturer if you try and claim
under warranty when using unofficial spare parts!
(I learned this lesson the hard way, using a Halfords filter on my
boat's diesel engine - result - a GBP3000 repair bill for a crankshaft-up
rebuild!)
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John Ellerington
SuperMIX Project team
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