I second that. I used one of those filters inside my engine bay for years without any problems until one day, for some reason it just started leaking. If I didn't have to run back into the garage for something and happen to notice a puddle under my bus it along with my dog would likely have been cremated. I now keep my filter under the bus and have mounted a fuel pressure gauge at my carb inlet. You can pick up a small white faced mechanical gauge for about $30. Its helped me track down fuel problems in the past