Northstar Engines and System Technical Discussion Discussion, air filter in a 1999 Deville in Cadillac Engine Discussion; The air filter housing on my 1999 Deville has a sensor on it . Does that mean that the cars ...
The air filter housing on my 1999 Deville has a sensor on it . Does that mean that the cars diognostic center will tell me when I should change the air filter ?
If not , how often should it be changed ?
The manual says to change it every 30,000 miles in normal service or every 15,000 miles in dusty conditions. If you don't know how long it's been or if you just bought the car and the filter looks dirty, it's not a very expensive item to replace.
I've read before that the various foam or gauze filters don't filter as well as paper filters. Seems feasible to me. There have been lots of arguments here about whether "high flow" air filters such as K & N, Fram Air Hog, Amsoil, etc. really have any benefits, and the general consensus is they don't help anything but the salesperson's retirement fund. There are lots of filters on the market. Probably any paper filter will work just fine.
Oh, don't worry. I am not contesting anyone on this. If I knew better, 3 years ago, I never would have bought a K&N. I am pro-paper now.
No worries at all. I bought an Amsoil filter once. Even proudly displayed the Amsoil filter sticker on top of the air box. I won't make the foam filter mistake again either. Now I run a cheap paper filter and have zero complaints.