I have read loads of articles and stickies on smoking diesels and there are many interesting articles and knowledgeable people out there. However, nothing beats a specific diagnosis about your own particular vehicle. My nearly 3 year old Avensis is due for a 3 year service and I would be really grateful for something constructive to say to the service personnel to encourage them to look for a problem that probably won't be apparent when they service the car. I'll explain... The blue smoke only