My less than ideal but “gets oil where I want it to go” (paraphrasing the late John Candy): I’m really glad I went out to take this pic btw, noticed something, don’t think I’ve driven with it there:
Yes, i have funnels. But need to find them, clean them and yeah.. So i usually just punch tiny hole to folio seal of 1ltr bottle, turn it upside down and squeeze gently. Usually most of it go into motor.
I use fingers too. But for some reason my cap is often extremely hard to open. Hurt fingers but i’m not using tool. Man thing i guess