I did my yearly maintenance this week. When I changed the RACOR filter assembly I noticed that the plastic bowl was "crazed" (see photos in my album). It did not leak and still feels robust. I use E10 gas with STABIL and the filter is out of direct sunlight. It is three years old. I contacted RACOR engineering and received an immediate e-mail reply. They said this should NOT happen and the bowl should be replaced. They asked me to check the bottom of the bowl for markings (PUR and Z). These markings show it is a new model bowl. I sent them photos of the bowl and they agreed to send me a new bowl at no cost! Glad to see that they believe in maintaining their quality. I know many of us use these filters-keep an eye on the filter bowl.