Finally found a fill cap that doesn't leak!
I used to have the Kirban fill tube and it always leaked, no matter how hard I tried to seal it. Same with the factory tube, the tabs were too small to grab. Found one in the junkyard that fit the valve cover so I ordered a new one from Buick. Almost 500 miles and not a drop of oil. The cap is off of an 85' Park Avenue. Part # 25522655 CAP ASM. Hope this helps.
I used to have the Kirban fill tube and it always leaked, no matter how hard I tried to seal it. Same with the factory tube, the tabs were too small to grab. Found one in the junkyard that fit the valve cover so I ordered a new one from Buick. Almost 500 miles and not a drop of oil. The cap is off of an 85' Park Avenue. Part # 25522655 CAP ASM. Hope this helps.
