Originally Posted By: Clevy
Originally Posted By: Donald
A quality oil filter will be fine. If its so special and aftermarket would void the warranty, then the manufacturer needs to supply them for free. Thats the law.
Not quite. A quality oil filter may work fine on different type oiling systems however sometimes a filter (Honda) can be too good and ends up being too restrictive which leads to inadequate oiling.
I remember years ago Honda insisted that oem filters be used, even though the filters were horrible as far as filtering ability (50%@30 microns rings a bell but I may be mistaken) however their oil pumps were weak and the filter had to be the as small a restriction as possible otherwise their wasn't enough volume and engines failed over time.
If these engine use a positive displacement oil pump, then the only way the engine is going to be starved is if the filter is so restrictive that the oil pump shoots right up to pressure relief and the resulting oil flow is way below what's needed. Or the oil pump is so weak and inefficient that it leaks a ton of oil volume if some added flow restriction is added to the oiling circuit.
As discussed many times on this board, the "typical" engine's oiling circuit is about 15 times more restrictive than the average oil filter. So how can adding 1/15th more restriction cause an oil pump to fall flat on it's face and destroy an engine? IMO, these cases where the filter supposedly caused oil starvation to the engine have to have some other factors involved, or the filter was some counterfeit knock-off that used cardboard out of landfill for media and didn't flow no matter how good an oil pump was.
Originally Posted By: Donald
A quality oil filter will be fine. If its so special and aftermarket would void the warranty, then the manufacturer needs to supply them for free. Thats the law.
Not quite. A quality oil filter may work fine on different type oiling systems however sometimes a filter (Honda) can be too good and ends up being too restrictive which leads to inadequate oiling.
I remember years ago Honda insisted that oem filters be used, even though the filters were horrible as far as filtering ability (50%@30 microns rings a bell but I may be mistaken) however their oil pumps were weak and the filter had to be the as small a restriction as possible otherwise their wasn't enough volume and engines failed over time.
If these engine use a positive displacement oil pump, then the only way the engine is going to be starved is if the filter is so restrictive that the oil pump shoots right up to pressure relief and the resulting oil flow is way below what's needed. Or the oil pump is so weak and inefficient that it leaks a ton of oil volume if some added flow restriction is added to the oiling circuit.
As discussed many times on this board, the "typical" engine's oiling circuit is about 15 times more restrictive than the average oil filter. So how can adding 1/15th more restriction cause an oil pump to fall flat on it's face and destroy an engine? IMO, these cases where the filter supposedly caused oil starvation to the engine have to have some other factors involved, or the filter was some counterfeit knock-off that used cardboard out of landfill for media and didn't flow no matter how good an oil pump was.
