You can't use HTML codes anywhere on the forum, I don't think. <i>test</i>
Actually the grenade types are:
tossgren timed (timed)
tossgren impact (impact)
+tossgren (primed)
The default grenade type depends on the server setting, so just "tossgren" wont behave the same on all servers. Also, "tossgren impact" won't work on all servers. gren_explodeonimpact needs to be set to 1.