I made an enquiry about Diesel Sure and got this reply from United Diesel ( www.uniteddiesel.co.uk
"Most African diesel is pretty heavy sour crude containing lots of sulphur so
it will pass the test easily. However, there may be certain exceptions.
For example, in SA, Mosgas produces some very light synthetic diesel from
offshore gas that passes the EN density spec for arctic diesel but not the
EN spec for temperate climates.
I argue that since most modern diesel engines are designed to run on
"temperate" diesel that it is the buyers prerogative to chose what type of
diesel to purchase.
Our EN kit is more sensitive than our blue capped SABS 394/EN arctic test
kit and therefore will detect the presence of paraffin at lower percentages.
I hope that this answers your question but if you would prefer I can supply
the SABS394/EN kits (African Kits) at the same price of £ 24.00"
It goes to show they have several kits to suit diferent regions and climatic zones. At this price it might be worth a try, I guess.