EV = Electric Vehicle => Engine is Cut Off
How to Use ? => Press the EV Button (Will only turn on if battery is sufficiently charged and engine is warmed up)
When to Use ? => You dont Need to use it
But
if u Want u can for instance when u enter ur garage or near schools and hospitals so engines doesnt emit Carbon for health reasons for ppl in the premises
Can also be sparingly used on slopes, but when batteries become full it becomes almost useless
1.5 Litre engine
currently dont have time to type in all details
call me sometime when ur free ill tell u
You can switch with Aqua without adding a huge amount
will post a review of Aqua when mine arrives
btw i think theres now a seperate thread for Toyota Aqua too
maybe u can find some details there
Salaam