Originally Posted By: chubbs1
Originally Posted By: ZeeOSix
Originally Posted By: chubbs1
Pre-filling the filter actually can allow contaminants/insols from the oil get into the engine unfiltered.
If you're careful, there shouldn't be any contamination introduced while filling a new filter with new oil.
That is true but sometimes oil will have insols. in the oil from the "factory" either from the stock itself, malabsorbtion of the additive pack or plastics/foil from the bottling process. Just something to think about when you are trying to go the extra mile to protect your engine.
But, aren't these 'contaminants' the same ones that you dump into the engine when adding/changing oil? I've been prefilling oil filters for many decades...what sort of a clumsy oaf introduces contaminants when prefilling? If such exists, I'll bet they're not members here.