We have 10 unit renault premium 420 that cannot be start at all.. this prime mover have been run on the road for almost 2years.. this starting problem happens went we used low gred fuel diesel from 1 persone.. we send all the nozzle and fuel pump for service but until today we cannot find the problem...

. Pump out the bad fuel.

. Purge the system of water.

. Replace any under hood and under frame fuel filters.

. Refill with known good diesel fuel.