not doubting you but just double check it is a full syn not just a part with Esthers in it, I am not saying your dealer would lie to you (is e trying to sell the EXS or EXP) but I had a dealer try to lie about and tell me an oil was full syn I bought it (Sorry cant remember the brand but was so called top shelve oil brand sponsors KTM off road Racing teams) I read every inch of the bottle and nowhere did it say it was full or or semi syn so I jumped on the Web and went to the Website sure enought it wasn't so I took the unopened bottle back to him and asked for a refund which he was relucant to do till I threaten to take him to fair trading, he changed his tune and said "I thought that would be better cos it cheaper then the full Syn and it's only a Rocket" So I told him in no uncertain term how far he could shove his bussines up his Lying Arse. as he learnt when someone asks full something don't Bull**** to them as he has lost any chance of ever selling me or any of my mates whom I have told another thing from his shop