@ iiqbal
And Jahazaib is like my Teacher , My brother , My best 
good good (Y) oodh khush hua 
U did not reply for the query of one pw member , how u managed to travel in Soft Top in -20
bhai i think mota mota reply kar dia tha
technical details say main jitna bhagta hoon aap loog utha he tang khench khench k mujhey technical stuff main ghusa detey ho :D:P
bhai in 3L, thermostat valve is not removed
also the clutch of fan is working properly
clutch is not jammed by putting magic in it, so the engine runs on its perfect required temp. in summer or winter 
also the heater was on so the inside temp. was pleasant
n the soft top is made airtight jist like hardtop, no spaces left for air to come inside 