I have this old grease gun I bought, 10 years ago. With mobil 1 red grease, using mabe 20 time max. Today I take it out to grease a none greaseable fitting ( Im using a grease needle adapter ). Anyway no matter how tight I tight the needle to, it keep leaking grease out , I turn the grease nose tight as I can and it still leaking grease out. I need a better grease gun, any idea ? thanks