petrol pour in diesel engine,engine will run and high knock
occurs,because of petrol have less fire point than
diesel,then its burn quickly.this is called knocking. when u
pour diesel in petrol engine then engine will not going to
the following machine will not run at all bcoz after the
purification of petrol the disiel is liberated after then
the petrol is formed , and if we pour it altogether then
petrol will float on diesel bcoz of low density of
petrol.thats why machine will not work properly.
if petrol is injected in diesel engine, it will not burn b'cause it needs high temperatures and pressure (heat). diesel has low autoignition temperatures. so engine is neither going to genrate power nor runs.