Cold Weather Starting

[Rescue11]

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Hey guys, in effort to make it easy as possible for my father in law, I wanted to ask what your opinions are about cold weather starting.

I found a silicone heater which would "just stick" to the oil pan. Here is 1 I found, with many variations both in price and wattage. Has anyone tried these? Good, Bad, Ugly? Best bang for buck?

Thought about a battery tender in addition to...

[J-Mech]

For what tractor? The 1864? It will start off fine with no additional help. It better anyways.

[Diesel Doc]

Had a friend in college burn his car to the ground with one of those. Personally I wouldn't use one, although the technology might be better now than 45 years ago. Haha!