I use Guard filter for my generator, usually I buy lot of 4 ~ 6 from Mian Autos, Model Town.
While installing the oil filter this time I was shocked to see the condition; the front was totally rusted.
I am not sure how's the condition from inside as its still sealed.
I preferred Guard over other brands, considering it to be a quality product but now my confidence is shattered.
I sent email to the manufacturer, asking them to explain how this happened. Unfortunately they never responded.
Maybe this will wake them up.