[Roobob]

Should I be add a fuel additive to help lubricate my 04 jetta TDI?????? And why?? Any suggestions?? Amsoil products??????? I'm new to this.

 

[Seatman]

I think some people add it to try and counteract the effects of ultra low sulpher diesel, I think it can be fairly hard on the injectors. I've never bothered myself and just stick with shell and now I have the specially coated nozzles so it's not a problem anyway.