Originally posted by livinsvt:
K&N is all about better flow. Better flow is not always better. Better flow is only optimal for pure racing conditions and is not necessary for a contour. The whole idea of the k&n air filter is ridiculous. It is an excellent race filter, but terrible for everyday use. Just think how could a simple drop in (filter) and 5hp. More air is getting in... but so is more dirt. Thats why many people have dirty mass air flow problems that set engine lights. You realy have to clean the filter almost on daily basis (depends on conditions). My guess the same applies for an oil filter unless proven otherwise. I go with fl-820s
No offense meant, but you have no idea what you are talking about. More air does flow through a K&N, but air is smaller than dirt. Dirt is trapped by the oiled gauze element - it sticks to it as well as gets trapped in the orifices. AMAOF, a K&N will filter better when it is dirty, because the trapped dirt will make the filter more restrictive. There is a corresponding decrease in airflow as well. Still flows and filters better than stock paper filters.
A K&N has been dyno proven to add 0-1 hp in a stock SVT. However, it is good to allow more air into an engine that has been modded to take advantage of it. Other applications, those that have more restrictive intakes that are a bottleneck, can gain more hp from a K&N.
CELs from K&N's are a result of over-oiling, NOT dirt getting through the filter. I used to work at the plant that makes the MAF and
oil on the contacts was the #1 warranty return. Not dirt but oil.
And if Demon's experience with oil analysis doesn't give you the data you need to be convinced that a K&N oil filter is better than Motorcraft then I don't know what will. Although the Motorcraft is the best low cost oil filter available.
