I pulled the plugs out of a friends thirdgen last night because he is having a slight misfire. A few of them had some red deposits on them? What could cause red?? The only thing I could think of was maybe the fuel injector cleaner he ran through it a few weeks ago??

 

Yep, usually red is cause by additives in the gas.

 

yup that does it for ya.

 

Car's on the rag

 

^^lmao