quote:
Originally posted by DracoFelis:
IMHO that's probably the main advantage of an "Oil Guard" bypass, over a TP bypass. While a TP system has "cheap" filters, it ends up costing you in "make up oil", due to the frequent filter changes that TP systems require. Of course, if you want extra long OCI's, you want to lose some oil so that you can "refresh" the oil with new oil. But you probably don't need to "refresh" the oil as often as the TP filters make you do it.
OTOH the OG filters are way over price IMHO (yes, I have the OG system on my cars), but those filters last a lot longer (even the smallest OG size, which is the type on my cars, seems to be good for 10k-15k on a single filter). As a result, the OG bypass may actually be cheaper to use then a TP filter (even with the high OG filter cost), if/when you factor in the cost of the (synthetic) oil that TP systems "waste" by frequent filter changes.