Danny - The GB additive came in a small 9ml tube, which was a bit tricky to squeeze into GB oil filler. I had a slight whine in 3rd. All quiet now so can only assume product worked. May sort out your notch gear change?
PJ - added to old oil. I queried this and called them. Apparently you can use with old or new but old is supposed to better as more metallic particles to react with, which I can understand.
Dave - Yes it is only my third post. I originally joined the forum when researching previous issue and have had no need to do so since. I still come back to see whats being said, nothing more. Xado caught my eye again and as I had used it, I thought I would share my experience, take it or leave it! All I am saying is it worked for me.
I know its Alfa but I am "Alpha1" - i.e the first letter of the Greek alphabet and 1 being the first number - both a pun on Alfa!