[smokie]

I have a customer with an 07 jeep with the 3.0 mercedes diesel.At 90,000kms the engine light came on and it had no power.Turns out the intake runner clips came off because of soot and crude built up in the intake.After a 12 hour repair,is there any additive for the fuel that she should be using to prevent this from happening again.She periodically was using inferior fuel i think and not the low sulphur stuff.I've looked at amsoil,lucas,seafoam and a few others,and wanted some input as to what people have had success with,thanks.