in case you didn't know...

[Motorbreath22]

...A 20 fl. Oz. Aquafina bottle has the same thread pitch as the oil fill cap. I.couldn't find my funnel I use for an oil change so I used this water bottle that was in the trash and the thing threaded right in. Makes a nice funnel that won't move around.

 

[Airwolfie]

Very clever! Nice!!

 

[angus67]

yup. most soda bottles fit. I cut a squirt bottle in half. You can dump a whole quart at once, and watch it swirl in. (yes, im simple)