for automotive use only 

A notice/warning placed on lubricants such as motor oil and brake fluid in order to prevent your mother/sister/grandmother from using said chemicals to lubricate her nasty, dry snatch while she's whoring herself out for crack.

Motor Oil
WD-40
Brake Fluid

for automotive use only by aiden diabhal January 22, 2004

for automotive use only 

When this warning/advice is marked on an object, it means that it should only be used, by you, behind the wheel of a speeding automobile. The higher the speed, the greater the use.

"Shit, this cell-phone hands-free set has a lable that says "for automotive use only". Better jump in the Dogde".

for automotive use only by Crapper McGee January 24, 2004