I use a 3 part BG plan on my Vauxhall Vectra, 109 – 244 – DOC every 15,000 miles and she has now clocked up just over 299,000 miles with only minor issues not covered by these products. Alternator pulley failed last year and front and rear Exhaust have been replaced (not the DPF). Big fan of BG as is the garage I use, PFC Motor Engineers. The owner has been in the trade for over 30 years and tells me that he has never seen anything as good as BG in protecting engines.