thanks DS, really appreciate your time

I'm sure I won't notice the difference between 16% and 20%... but sometimes either one of them is not available... so I have to be prepared...

re: bearings... how do you notice they need to be replaced? I ask because I've killed my jl3 because recently. I was happy with the engine and the bearings failed after 20L +. So it's all my fault ... However I did open the engine regularly.. and saw no sign telling me - Change the BEARINGS ....

I was just looking for a ballpark figure... Something like... if after 15L the bearings still seem fine.. then replace for peace of mind!

thanks once again !!

g