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Subject: Magnetic Oil Pan Heaters

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Larry    Posted 12-11-2017 at 11:39:48 [URL] [DELETE]        [Reply] [Email]  
  • Magnetic Oil Pan Heaters
  • Anyone ever use these things? I've never had one on the 8N. The larger tractor I have now has more oil. I was thinking about getting one. Looking like a bad winter so far in Northern Indiana. Just issued a Winter Storm Watch.

    Tim Daley(MI)    Posted 12-12-2017 at 07:02:09 [URL] [DELETE]        [Reply] [No Email]  
  • It's A Clinker!
  • Recalled the scene in "A Christmas Story" where Darren McGavin has to get a pan of hot water to get the '37 Olds started. Didn't radiators use alcohol at first to prevent freezing?

    Tim Daley(MI)

    Jack - Iowa    Posted 12-12-2017 at 08:12:29 [URL] [DELETE]        [Reply] [No Email]  
  • Re: It's A Clinker!
  • I remember using alcohol as antifreeze. Not very satisfactory in the spring on mud roads as the boiling point is pretty low.

    duey    Posted 12-11-2017 at 16:44:00 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters
  • A bit Off topic, but back in the 60s...in east central Minnesota, we would get the 2N running by pouring a teakettle of scalding hot water on the carburetor and intake... good fuel vaporization is essential to getting started. At first, it wouldn't even allow the clutch to come up in neutral... but eventually it would. Never did have a heater of any kind... but just getting by on the farm.

    Farmer Dan    Posted 12-11-2017 at 16:27:52 [URL] [DELETE]        [Reply] [Email]  
  • Re: Magnetic Oil Pan Heaters
  • I lay a 60watt light bulb under the battery tray. Keeps the cast iron warm and the battery warm and lets me see in the garage at night LOL. Works good in your well house too.

    Tim Daley(MI)    Posted 12-11-2017 at 16:17:34 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters
  • Well now, in cold temps, below 32F, I'd be more concerned that my battery had a good sustainable full charge on it than the oil temp. I live in Michigan where winters are 9 months year round (practically)September thru May typically. I have had my 8N stored outside, tarped, many winters off and on, and it has only given me trouble starting once. The root cause was a weak battery. It is and has always been original 6-volt/positive ground. A weak discharged battery will lose over 50% of its effectiveness when cold. The other secret, especially with 6-volts, is to keep the PM up before winter hits. Oil change, tune-up, battery charge, et al. Keep a battery float charger on it -I know its hard to do when stored outside but maybe put battery in garage or shed to keep charged. I've never used oil heaters and not saying they are a waste so don't send me letters. I saw a near disaster once on Christmas Day when my B-I-L put a 100w trouble light on his car battery and it melted through the top of he case.

    Tim Daley(MI)

    steveVa    Posted 12-11-2017 at 15:13:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters
  • I have two of the smaller ones and they work great. I also have put one on the intake manifold when things are really cold. They work great on the N and the Whippet, but they would not stick to the Orange thing. I guess the pan is aluminum on that one...
    I also use them on the lawn tractor, but hard to find a place to stick there too.

    Dave Smith    Posted 12-11-2017 at 14:42:31 [URL] [DELETE]        [Reply] [Email]  
  • I found
  • I found engine block heaters work the best.
    They replace the frasher plugs ( freeze plugs).
    I have 2 300 watt plugs on the Ford 5000 diesel
    I use a thermo cube to pick up a relay that feeds
    The heaters. The thermo cube will not handle the
    current draw of the heaters. The relay is fed from
    a separate circuit.
    Dave <*)))><

    RonandMary    Posted 12-11-2017 at 14:25:48 [URL] [DELETE]        [Reply] [Email]  
  • Re: Magnetic Oil Pan Heaters
  • We use ours on the oil pan here in Oklahoma anytime our overnight temps are going to be in the teens. Under 2 tarps (one is heavy canvas) fastened close underneath with bungies, we think it keeps things toasty. Less warm-up time if I need to use it on a cold day like I did twice last week when overnight temps hit 14 degrees.

    K.LaRue-VA    Posted 12-11-2017 at 12:41:47 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters
  • I've been using that exact same heater (or a clone) for many years. It's probably more wattage than needed to warm things up after even the worst sub-zero overnight temps we get in central VA. The magnetic heaters only work well if you can find a convenient flat spot at the bottom of the engine oil pan. There is a good spot towards the back on the 8N oil pan. I just attach the heater, plug it in, then go do something else for 30-60 minutes before cranking the engine. My gut tells me for northern Indiana, you might want to have crankcase and water heaters. I bought a water jacket heater that mounts in the lower radiator hose, but never installed it. The magnetic heater has proven to be all I need for our climate.

    Nate    Posted 12-11-2017 at 11:57:28 [URL] [DELETE]        [Reply] [Email]  
  • Re: Magnetic Oil Pan Heaters
  • I tried one of those, but the oil pan just seems to act like a giant heat sink.
    I had much better luck starting my 8N by placing it on the intake manifold!
    About 4 hours or so seems to do the trick.

    Larry    Posted 12-11-2017 at 12:06:07 [URL] [DELETE]        [Reply] [Email]  
  • Re: Magnetic Oil Pan Heaters
  • Ok thanks. After I posted I was thinking about how good the modern day multi grade oil actually is and wondered if one was even needed. I use the Rotella 15-40 and I'd think it would be just fine for normal winter temperatures here. Maybe if it was 10 below these things would be ok to use.

    36 coupe    Posted 12-14-2017 at 10:30:34 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters
  • Beware of Rotella 15/40 in cold weather.I put some in my Ford F150 in dec.I got loud rappy starts.Dump the 15/40 for some 10/30.Noise gone.Worn oil pumps cant prime thick oil.My Ford Truck had very erratic oil pressure after starting up with 15/40.Look at a sample of your oil at zero degrees.I had some 40 wt oil in a jar in a cold garage.I stuck a screw driver in the oil to get some for a gasket.The screw driver stood up straight.Put a sample of 15/40 outside at 10 degrees for an hour and note how thick it gets.I drove an International truck that showed no oil pressure on cold mornings.I used to put in a pint of #10 oil to get oil pressure on start up.I repeat check your favorite oil at zero degrees.

    TheOldHokie    Posted 12-11-2017 at 12:24:30 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters

    The viscosity curve of a typical multi-grade SAE 15W40 engine oil is nearly identical to mono-grade SAE 30 and you will see pretty much the same results when things get cold.


    Larry    Posted 12-11-2017 at 14:36:14 [URL] [DELETE]        [Reply] [Email]  
  • Re: Magnetic Oil Pan Heaters
  • ??????? I'm confused. Your saying that 15-40 is the same as straight 30 when it gets cold. I'm not doubting you but seems to make no sense. Years ago when it was very very cold my brother had his John Deere 4020 plugged in with the water heater and one of these magnet heaters on it. I went over to his house since he was going to go out and move snow. We had a big one. He checked the oil and it was a little low. He used straight 30 for some reason. When he went to pour some in it wouldn't even pour. Not that's thick.

    36 coupe    Posted 12-14-2017 at 10:41:48 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters
  • Check a sample of 15/40 at zero degrees.

    TheOldHokie    Posted 12-11-2017 at 17:26:27 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Magnetic Oil Pan Heaters
  • Yes - that is exactly what I am telling you. Here is a graph of the two viscosity curves along with a couple others just for comparison. The viscoity numbers are from the product data sheets for Pennzoil SAE 30, Mobil 10W30, Mobil 0W40 and Rotella 15W40. People see 15W in the grade and assume it means it is going to be a good cold weather oil. It is not. A good cold weather oil in Grade 40 would be SAE 0W40 which will perform just a bit better than SAE 10W30 at temps below freezing (0C).


    Abbby    Posted 01-01-2018 at 20:54:10 [URL] [DELETE]        [Reply] [Email]  
  • Re: Magnetic Oil Pan Heaters
  • IMO the Katz lower radiator hose is the only way to go. Some of the nay sayers think the coolant must be circulated for it to work. I plug mine in about an hour before starting at -20F. Touch hand on head and it feels warm. Tractor starts right up like 40F. A little tight fit installing but well worth it. I tried a magnetic one on the pan and really not a good place on the N to put and did not seem to heat much at all. So try to take it off while it is hot. Forget it! Again my opinion and experience.

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