and why do u use pro s?? please explain as im interested in noing as i no its the cheepest and u get a extra 1L than most outhers.
iv allwaysed used castoral but at £55 for 4L then post its expensive. but i no it is good and was fine on track also.
but as u lot are 15 miles down the road from me it would be cheeper for me 2 change and go with what u use. just wondering thow why u use it or is it just cost?