Fifth Gear Diesel Test

Interesting, an increase of 6bhp

I've been using BP Ultimate since owning the Vectra

hmm looks good. go get yours on the rollers matt then you will know for sure.

Very intresting indeed.

It's a pitty that petrol BP Ult does not give the same results as a standard NA cars.

i was enjoying that until he mentioned ..... noticeable on higher power engines.......lol