Anyone tried Opti-Lube XPD

I just treated my 2011 with 66000 miles on it to a fill up with 11 ozs of XPD. What a change, engine is quieter almost immediately. Don't know about mileage yet I had an average of 20.6 for the last 10k miles. A lot of +75 mph driving.

M Funf, I asked the same question earlier this year and got the following answers: http://www.bimmerfest.com/forums/sho...ight=opti+lube

I'd be interested to hear if these products are worth the money?

Originally Posted by finnbmw

M Funf, I asked the same question earlier this year and got the following answers: http://www.bimmerfest.com/forums/sho...ight=opti+lube

I'd be interested to hear if these products are worth the money?

I reviewed that thread, and the comment that it smells bad is an understatement. I use two surgical gloves, and keep filled bottles in a zip lock bag. I am also very careful not to get any on any painted surfaces. So far the engine is much smoother, and that may be just from the cetane boost. The difference between #2 and a more expensive fuel here is $.56 per gallon not economically viable.