Fuel filters should be changed, fill the main filter with fresh clean fuel or diesel purge or diesel 911 prior to installation. Check your glow plugs. Start with simple stuff, work toward complicated.

You may have gotten some water in your tank with the off-road fuel.

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC