Is there a trick to getting this off? I have to do some work on my coolant system, and I know I'm going to need to take it off to fill it back up ... but the thing won't budge. I had to use a wrench to get the radiator cap off ... Glad I bought the oil filter wrench now, since I couldn't even get it to fit into the space for the oil filter but at least it came in handy on getting the radiator cap off .. I tried putting silicone grip gloves on and take the cap off ... tried pressing down but it just won't budge at all. Am I missing something??
