Hey yall. got another goofy question. block heater only heats the oil right? So why is my truck so smooth starting with it plugged in over night and rough start/idle in the aftrenoon? Thanks again this is the best site i found

 

if this is the best site for powerstrokes you have found then you have not looked very hard.

 

Thanks i think...... the others said never to run over 2k