Sunday, Apr 01, 2018 at 21:06
The Ryco Z252X is a shorter body filter, produced because the longer filter body of the Z380 caused interference problems on some newer models that have a tighter clearance fuel filter assembly fit.
There is no internal design, or filtering material differences, between the two Ryco filters.
You may find serious differences in filter design and filtering ability, between Ryco filters and "Brand X" filters.
The cheaper filter differences can be -
1. Less filter paper used, with bigger gaps between the pleats. This simply means less filtering ability.
2. Differences in inner and outer dimensions of the filter paper assembly. Cheaper filters often have a large inner dimension and a smaller outer dimension of the filter paper assembly, than the original manufacturers filter, or a
well-known brand name.
Once again - less filtering ability.
3. Filter paper used in the cheaper "Brand X" filters can be thinner or have a higher micron number filtering ability. Result? Bigger particles of dirt or rust going through the filter and therefore through your fuel injection system.
4. Differences in thickness and size of the metal casing, meaning less physical strength in the filter, thus allowing the possibility of rupture.
Aftermarket filter manufacturers are nearly always obliged to deviate from the original manufacturers component specifications, due to "registered design" laws, and even patents.
A registered design prevents copying of the component for 6 years after its introduction, and protects the manufacturers from rapid price undercutting by aftermarket manufacturers.
When you buy a filter, ask to see the manufacturers warranty. Even Ryco have a long and detailed warranty giving them plenty of "outs" to refuse an engine damage claim.
Most aftermarket filter manufacturers will give a 12 mth warranty on their product. That simply means they'll give you a new filter, and laugh at your complaint about your motor that was buggered up by their crook filter.
Ryco, along with others, will offer to replace any component damaged by one of their filters.
The problem is, Ryco demand that you produce the faulty filter, and they then examine it, and decide themselves whether it failed as a result of a manufacturing fault. If they decide their filter wasn't faulty, you're out on a limb.
If Ryco do decide the filter is faulty, then they limit their payout only to components that were actually damaged by the filter - not any consequent damage.
This can still leave you with a hefty repair bill, if the "consequent damage" from their faulty filter is substantial.
Cheers, Ron.
AnswerID:
617978