Hi.

Am thinking of getting a Simota air filter for my car (Corolla '96 1.6 GLi). However, after reading a few bulletin boards and the like, it seems to be the common conclusion that introducing such devices (whether Simota, K&N, or Hurricane) makes it easier for dirt and other particles to enter your engine. Thus, the need for more frequent oil changes.

Is this true? Will the o8il be changed more ofte?

If yes, how often?

Which would be better to use then, synthetic or regular oil? Better meaning safer for the car, and cheaper in the end.

In the end, will a car be damaged because of this dirt penetration?

Additional information aside from the above questions will be greatly appreciated.

Thank you very much.