Sorry, "big rig engines" (as you call them) don't have cylinder heaters,
glow plugs, or any thing like that. What they do use on occasion is either
assist on the intake.

Direct injection diesels don't as a rule have a problem starting cold.

s

"willshak" wrote in message
...
They are on many of the big engines too, especially the big rigs. They are
used in cold weather to preheat the cylinders (not to provide an ignition
source).

Bill
In Hamptonburgh, NY
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