X XC220 Guest Oct 21, 2008 #4 There service life is 150K miles from what i have read. The little guage on the side lets you know how well the air is flowing. as long as the color shown isn't red your ok
There service life is 150K miles from what i have read. The little guage on the side lets you know how well the air is flowing. as long as the color shown isn't red your ok