i know there is on hondas, look it up, if so, just drain from there.
this is getting to be too much effort
Nothing to do with gas mileage but… you could remove his gas cap, and let it hang. Then take sugar, and sprinkle in on the ground under his gas cap.
Next step is to write a nasty note saying,
Dear gas guzzler,
Since you love burning that sweet sweet crude so much, we figured we would help you out.
Sincerely,
The Prius Posse
PS- This time buy an eco-friendly car, asshole!
LMFAO. Next time I need a prank I can guarantee where I’m posting. Some of the suggestions are awesome. This one takes the cake thusfar IMO.