I've been using a yellow top for years.
It's been in everything from the JTD with amps sapping power, to the 20vt that i used once a month and as of late my dads old land rover.
it's about 4yrs old.... and still like new in terms of performance.
I don't use the yellow top anymore tho.. so it sits in the shed ready to jump start summit!!!
....
![[linked image]](http://img.photobucket.com/albums/v19/TommyK/boo/plate-2.jpg)
....