I have an optima blur top in my 1992 300ce.
It is the battery I use in my boat. when the boat is not being used, I use the battery in my car to keep it fresh, and I keep my battery stored and on trickle charge.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.