Just checked my dip stick. Nothing. Clean as a whistle. I put in 2 litres i had left over from the service 10 months ago and i'm back up to normal. I checked the oil level every 2 weeks for about 3 months after i did the service as i'm not that confident on my work. All seemed fine, no loss. I was horrified to find i'd lost so much in the last 7 months.
I park in exactly the same place every day and there are no oil spots on the floor. I have however noticed a lot of turbo Woosh under hard acceleration similar to the woosh when the intercooler went on my old vec but i can't see and oil vapour marks in the usual places. Help on ideas if you please.