Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

10W-30, 30W, Or 10W-40 Oil, Your Thoughts On Which One?


  • Please log in to reply
18 replies to this topic

#1 propane1 ONLINE  

propane1
  • Senior Member
  • Member No: 54307
  • 6,116 Thanks
  • 3,206 posts
  • Location: Charlottetown, Prince Edward Island, Canada

Posted October 31, 2014 - 04:56 PM

Thinking about changing all tractor engines to 10w-40 oil for year round use.  Most use 10w-30 in winter and 30w in summer. Would like to use one oil to make it simpler instead of buying summer and winter oil. Some of my tractors I use are in a 50-60 degree garage all winter and some are in an unheated garage all winter. just wondering what your thoughts are.  Thanks, Noel

 

Had posted this one or two days ago, but seemed to disappear ? 


  • hamman and GlenPettit have said thanks

#2 hamman OFFLINE  

hamman

    Homelite Owner Extraordinaire

  • Senior Member
  • Contributor
  • Member No: 1733
  • 5,629 Thanks
  • 2,586 posts
  • Location: Michigan

Posted October 31, 2014 - 04:59 PM

Ya, I commented on it and it went to another post. I couldn't delete it so I had to hide it. Thought it was just me.  Anyway,  I was wondering the same thing. I've been thinking of going to 15 W 40 for year round use in all my GTs. Two I keep in a heated garage in the winter and the others I keep in a non heated garage.  I will be watching for other input also.    Thanks.                                                                                                                                             Roger.


  • propane1 said thank you

#3 Bolens 1000 OFFLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 12,701 Thanks
  • 17,209 posts
  • Location: Western NY

Posted October 31, 2014 - 05:01 PM

All of my stuff runs on 10W-30 in winter and summer , My Grandfather did the same, 40+ years and the engine is still going strong......


  • hamman and propane1 have said thanks

#4 GlenPettit OFFLINE  

GlenPettit
  • Senior Member
  • Member No: 34353
  • 520 Thanks
  • 143 posts
  • Location: MI (South of Lansing)

Posted October 31, 2014 - 05:14 PM

The numbers are viscosity (how fluid the liquid is: water being about 1w and honey being about 75w).

Starting a cold engine in Winter: you want the oil be be thin (5w, 10w), but once the engine is warm and working, you want a thicker oil so it will stick to the cylinder walls to lubricate the engine.  In high engine heat the thinner oils just flow off too quick and the engine will burn, that's why we have the dual number - combinations oils available in the Winter.

 

For summer, the 30w oil is great, and even down to 40-50ºF it will work great.  If the tractors are outdoors and the temperatures are getting down to 10-20ºF, you want 10w30 oils.  Having a heater on it, or in the garage with a light bulb or pad heat on the engine in the Winter makes the block and oil actually more like 40ºF, so then 30w is still fine.  If you're running a larger tractor doing heavy work for 8 hours all day, especially on hot days, then you may want a lot heavier oil, but heavy oil takes more effort to turn the cylinders over when starting, until the engine is warm.

 

So, what you choose to use depends on your use, when you're using it and storage.    Just one oil is nice and then you can buy it in larger containers to save money.  What brand to use, has lots of different opinions.  Then there's the synethic oils.

 

I like life simple & my tractors are all garaged (unheated, but still a +temp gain); and I use small bulbs on the really cold Winter days here in Michigan (between the battery & block, under a blanketed tractor, for pushing and for throwing snow, two tractors), and just 10w30 oil all year.

Glen


Edited by GlenPettit, October 31, 2014 - 05:24 PM.

  • MH81, hamman, KennyP and 5 others have said thanks

#5 shorty OFFLINE  

shorty

    Member

  • Senior Member
  • -GTt Supporter-
  • Member No: 6172
  • 3,570 Thanks
  • 3,951 posts
  • Location: Lancaster County Pa

Posted October 31, 2014 - 05:14 PM

One thing to think of, if it calls for a 30w and the pump is built to that. It might struggle to pump the heavier oil.


  • hamman and propane1 have said thanks

#6 Chopperhed OFFLINE  

Chopperhed
  • Senior Member
  • Member No: 20120
  • 1,852 Thanks
  • 1,071 posts
  • Location: Edmonton, Ab, Canada

Posted October 31, 2014 - 05:22 PM

 I see temps down to -40 C here and up to +35 C.

Depends on the engine. I run 20w 50 synthetic in my bike, since its air cooled and runs a bit hot.

The van runs 10W30 because it knocks a bit on 5w30 in the winter. Its a 4.3l chevy. When it gets a bit older I'll switch to a higher viscosity.

 

all of my other power toys are using 10w30 fleet grade since I got it for free.


  • hamman and propane1 have said thanks

#7 olcowhand OFFLINE  

olcowhand

    Red Tractor Nut & Diesel Addict

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 20
  • 35,653 Thanks
  • 29,841 posts
  • Location: South Central Kentucky

Posted October 31, 2014 - 05:24 PM

Yes, a few things went awol with the server upgrade.  I use 15w40 in all my engines, both large & small.  


  • hamman and propane1 have said thanks

#8 hamman OFFLINE  

hamman

    Homelite Owner Extraordinaire

  • Senior Member
  • Contributor
  • Member No: 1733
  • 5,629 Thanks
  • 2,586 posts
  • Location: Michigan

Posted October 31, 2014 - 05:24 PM

One thing I do do in my dads old Homelite is I use Slick 50 after every oil change. I add about a pint of it. So far it has been ok. I talked to an old small engine guy and he said he has been adding it to all of his older engines since it came out.                                                                                        Roger.


  • propane1 said thank you

#9 Bill 76 ONLINE  

Bill 76
  • Senior Member
  • Member No: 49625
  • 1,646 Thanks
  • 1,060 posts
  • Location: 5miles west of Milwaukee Wisconsin

Posted October 31, 2014 - 05:42 PM

I also use 10w30 in all my small engines .and the W after the 10 means winter not weight,some people get it mixed up. 


  • propane1 said thank you

#10 KC9KAS OFFLINE  

KC9KAS
  • Senior Member
  • Member No: 10038
  • 4,783 Thanks
  • 4,303 posts
  • Location: Holland, IN

Posted October 31, 2014 - 06:16 PM

I use straight 30 all year. My GT's are in the garage.

The garage has a furnance, but it is only running if I am in there working.

If it is really cold, blistery cold, I don't want to be outside anyway!


  • MH81, Bill 76 and propane1 have said thanks

#11 JDBrian OFFLINE  

JDBrian

    Super Moderator

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2507
  • 9,574 Thanks
  • 14,136 posts
  • Location: Hubley, Nova Scotia - Canada

Posted October 31, 2014 - 07:31 PM

Amsoil makes a synthetic small engine oil that is a substitute for both 30w or 10w30. 


  • propane1 said thank you

#12 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,322 Thanks
  • 28,640 posts
  • Location: N. W. PA

Posted October 31, 2014 - 08:05 PM

I run SAE 30 all year long. I may try 10w30 in my snow removal fleet as last winter there were a couple of hard start times. I have never felt that the oil wasn't protecting, just that it was harder to roll over.
  • farmerall and propane1 have said thanks

#13 adamjd200 OFFLINE  

adamjd200
  • Senior Member
  • Member No: 39654
  • 1,406 Thanks
  • 1,540 posts
  • Location: central Ny

Posted October 31, 2014 - 08:29 PM

10W-30 in the snow blowers and 30W in everything else, As a side note we also still use 30W in the two farm tractors, a Farmall 706 with the 310 german diesel and a IH 606 diesel with a loader.


  • propane1 said thank you

#14 thadscub OFFLINE  

thadscub

    New Member

  • Member
  • Member No: 1913
  • 69 Thanks
  • 79 posts
  • Location: elizabeth co

Posted October 31, 2014 - 10:42 PM

i run 30 weight in the summer and 5w 30 in the winter


  • propane1 said thank you

#15 propane1 ONLINE  

propane1
  • Senior Member
  • Member No: 54307
  • 6,116 Thanks
  • 3,206 posts
  • Location: Charlottetown, Prince Edward Island, Canada

Posted October 31, 2014 - 11:00 PM

Thanks bill 76 for the W information. And thanks for everyone's information. Very interesting comments. I will let you know what I do. Will have to ponder the info for a bit. In a book I read, it said to use 30 or 10w-30 in the engine. Then it said , the only thing to do if you are useing 10w-30 is to check it more often. Thanks again , Noel.

Hopefully more comments come in.
  • MH81 and Bill 76 have said thanks




Top