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#3237784 - 01/04/14 10:31 PM winter weight oil for coleman powermate generator
docdavid Offline


Registered: 05/20/09
Posts: 12
Loc: michigan
I have a 10 year old Coleman Powermate generator with a 10 hp Tecumseh 4 cycle engine. Up until now it has only been used in warm weather and the manufacturer specified 30 weight oil has worked fine. I now want to be able to use the generator in winter weather but I cannot locate the owners manual and don't know what the proper viscosity oil would be. Any suggestions as to viscosity and conventional vs synthetic would be greatly appreciated.

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#3237786 - 01/04/14 10:33 PM Re: winter weight oil for coleman powermate generator [Re: docdavid]
SuperDave456 Offline


Registered: 10/29/08
Posts: 2458
Loc: Dallas, Texas
0w30, best oil for it year round.
Maybe a 0w40 if you think it is a little worn and want to have awesome protection in the Summer.

Either way, the oils have "freezing point" of something around -47 degrees F most of the time and a very robust synthetic base that is great at higher temperatures.

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#3237795 - 01/04/14 10:41 PM Re: winter weight oil for coleman powermate generator [Re: docdavid]
mattwithcats Offline


Registered: 06/13/13
Posts: 1372
Loc: Virginia
Agreed...

First number is viscosity when cold, 0W is the most fluid (liquid ) when cold,

Second number is viscosity when hot...

A 30 weight oil is ???W30, no idea what it's like cold, 30 weight when hot...

Use a synthetic, much longer run time (200 hours) vs Dino (60 hours).
Use an vibration hour meter to keep track of the run time...


Edited by mattwithcats (01/04/14 10:43 PM)
_________________________
2009 Smart Pure
Pennzoil Platinum Euro 5W-40, Purolator Synthetic PSL 14610, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)

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#3237798 - 01/04/14 10:43 PM Re: winter weight oil for coleman powermate generator [Re: docdavid]
Donald Offline


Registered: 03/21/04
Posts: 17991
Loc: Upstate NY
I think I have the same generator as my backup (to my propane) generator. I use Amsoil 4-Stroke 0W30 small engine oil in it. I have also used the Amsoil 4-Stroke 0W40 which I think was the original Amsoil 4-Stroke oil weight.

The carb is off right now being cleaned as it needed a little choke to keep it running halfway decent. But have yet to find anything that really looks dirty. Unfortunately they sell almost no parts for the carb. The gasket for the bowl is a little hard and needs replacement.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


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#3237808 - 01/04/14 10:54 PM Re: winter weight oil for coleman powermate generator [Re: docdavid]
Ramblejam Offline


Registered: 11/05/13
Posts: 3004
Loc: Kentucky
Originally Posted By: docdavid
Any suggestions as to viscosity and conventional vs synthetic would be greatly appreciated.


If I told you it doesn't really matter (to a certain degree...), would you believe me?

Seriously though, look at Donald for a prime example -- it's always the fuel system that people have problems with on infrequently used small engines. Focus your attention on this system, and keep it in the best shape you can.
_________________________
As thin as possible; as thick as necessary

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#3237812 - 01/04/14 10:57 PM Re: winter weight oil for coleman powermate generator [Re: mattwithcats]
Rand Offline


Registered: 08/20/03
Posts: 11263
Loc: NE,Ohio
um no thats not even remotely correct.
crush crush

Originally Posted By: mattwithcats
Agreed...

First number is viscosity when cold, 0W is the most fluid (liquid ) when cold,

Second number is viscosity when hot...

A 30 weight oil is ???W30, no idea what it's like cold, 30 weight when hot...

Use a synthetic, much longer run time (200 hours) vs Dino (60 hours).
Use an vibration hour meter to keep track of the run time...
_________________________
2017 Jeep Cherokee Trailhawk V6

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#3237857 - 01/05/14 12:16 AM Re: winter weight oil for coleman powermate generator [Re: SuperDave456]
Kuato Offline


Registered: 10/23/05
Posts: 5915
Loc: Colorado
Originally Posted By: SuperDave456
0w30, best oil for it year round.


^this.
_________________________
Oil condition is speculation until a UOA has been performed.

2013 F150 5.0 4x4 60k Schaeffer 9000...Amsoil next

Thick vs Thin test in progress


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#3237959 - 01/05/14 07:12 AM Re: winter weight oil for coleman powermate generator [Re: docdavid]
cronk Offline


Registered: 01/06/09
Posts: 990
Loc: Watertown, New York
Rotella 5w40 synthetic, available at any Walmart.
or if your so inclines Amsoil makes a small engine oil, I think its a 10w30.
_________________________
1998 GMC C1500
2003 Chevy Cavalier
2011 Nissan Quest
1986 Pontiac Trans Am
1940 Ford 9N Tractor

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#3237973 - 01/05/14 07:44 AM Re: winter weight oil for coleman powermate generator [Re: docdavid]
Cujet Offline


Registered: 02/15/03
Posts: 5856
Loc: Jupiter, Florida
Those engines are sensitive to oil viscosity during hot and heavy use. Choose your oil carefully. Plenty of Tecumseh engines broke connecting rods due to "dino" 5W-30 after the FL hurricanes. The local shop had nearly 100 of them for repair for the exact same issue.

Winter ops: Chose something like Mobil 1, 5W-40 Turbo Diesel Truck or Rotella T6. If you pick a super thin, cheap oil, there is a risk it will remain in the engine during summer ops.

Summer ops: 5W-40 or 15W-50M1.
_________________________
Turbo's rule.

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#3238039 - 01/05/14 09:06 AM Re: winter weight oil for coleman powermate generator [Re: docdavid]
KD0AXS Offline


Registered: 11/13/12
Posts: 2203
Loc: Nowthen, MN
I'd put Rotella T6 in it and use it year round.
_________________________
2014 Hyundai Elantra Coupe 2.0 GDI-PUP 0W-40
2013 Jeep Wrangler JKU-PUP 5W-20
2005 Ford F-350 4x4 5.4-Maxlife 5W-20
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#3238150 - 01/05/14 11:10 AM Re: winter weight oil for coleman powermate generator [Re: docdavid]
tig1 Offline


Registered: 01/03/09
Posts: 11989
Loc: Illinois
I use M1 10-30 in my Powermate with the Subaru engine. It performs very well in all temps.
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