Do i use fuel injector cleaner before or after an oil change?
 
 
Dont matter but i usually use it right after the oil change. 
-Will Ong
 
I dont think it really matters. i use GM with techron when i fill up.
 
 
Well since ( hopefully) your oil and gas arent mixing it doesnt matter.
- 2004 Cavalier - 124k, owned since new
 
im not responding to this thread, merely here to ask  Ad1kTed 2 SpE3d this:
WHAT IN THE HECK IS THAT GRAPHIC ABOUT???
 
dude that is about the sickest stickman cartoon ive EVER seen!!!
where can i get one of those...