i attempted to change my oil and filter on my 92 fzr 600. i had a really hard time removing the filter. it was actually crushed when it finally came out. anyway, i heard you were suppose to tighten to the filter too much so i didnt but when i started the bike up, it leaked oil. So i tightened it more and it still leaked. so i tightened it as hard as i could with a wrence and it still leaks. The rubber ring is from the old oil filter is NOT still on there. I've bought a new oil filter and the same thing happened. The only thing i can think of is that my bike uses 20w-40 oil and i just got some expensive motorcycle oil instead because i couldnt find 20w-40. Any help would be appreciated. thank you.