Do you hate the gritty sound of abrasive sand when you screw in the oil fill cap on a concave opening in the valve cover? How about the frustration of not being able to wipe out the tube section of a funnel - you know there's grit in there ready to wash into the engine when you pour in the oil.
Picked up a Spectre funnel cap (eBay; $10). It permanently raise the fill opening so no more grit ingression. It's also a funnel. The whole contraption is a single unit. It's ugly, but effective.
Terrible valve cover fill hole design:
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28080-img_20180706_171658245.jpg)
The gizmo in a collapsed state:
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28081-img_20180706_171955415.jpg)
Fill cap closed:
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28083-img_20180706_171908474_hdr.jpg)
THe funnel-cap extended, ready for oil.
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28084-img_20180706_171938610lpp_p0_.jpg)
Picked up a Spectre funnel cap (eBay; $10). It permanently raise the fill opening so no more grit ingression. It's also a funnel. The whole contraption is a single unit. It's ugly, but effective.
Terrible valve cover fill hole design:
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28080-img_20180706_171658245.jpg)
The gizmo in a collapsed state:
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28081-img_20180706_171955415.jpg)
Fill cap closed:
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28083-img_20180706_171908474_hdr.jpg)
THe funnel-cap extended, ready for oil.
![](https://www.bobistheoilguy.com/forums/attachments/usergals/2018/07/full-29426-28084-img_20180706_171938610lpp_p0_.jpg)