I would like to start letting you know what I think of your great oils etc. I bought a 2000 NISSAN PATROL 4.2 TURBO DIESEL with 160.000 klm’s on the clock back in 2005, soon as I got it, I am using your product called HEAVY DUTY OIL STABILIZER, mixing 1 litre to 9 litres of diesel oil. I change the oil and additive every 15.000 klm’s. The motor had done 518.000 klm’s when I decided to drop the sump and put a new set of mains and big end shells in her. WHEN I ROLLED THEM OUT, to my surprise, THEY WERE LIKE NEW, I could have put them back, BUT, I REPLACED THEM ANY Way with genuine Nissan parts. The motor has done 618.000 klm’s since and is still not using water OR OIL PERIOD. I have being using your product’s for well over 15 years plus, even when racing speedway. What I would like to say, is that I WILL NOT USE ANY OTHER BRAND BUT YOURS FULL STOP, and am always telling my mates about your great oils etc. I am 74 young and still do all my own mechanical work, up to this day. Please believe me on this matter, as it is a GENUINE STORY (no bull), and I will continue using you GREAT PRODUCTS to the end. I would like to close now by saying congratulations on such a GREAT product. I expect to get well over 800.000 klm’s out of my motor thanks to your great oils. I felt I had to let the head office know, direct, so that you would get my GENUINE feed back. Many many thanks again, your loyal customer in down under Australia. -Len W.