mac123

hi, just found out my recently bought s type 4lt v8 has had no spark plug change for at least 25000mls, so ive decided to tackle the job myself.can anybody tell me what are the best plugs taking into consideration that it has been converted to lpg.

hi im a newbie. just bought my first jag at 60. should have done it yaers ago. my s tpe 4lt misfires at 50mph. local garage diagnostics says misfire on cylinders 4 and 8. could anyone help please.