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Old 04-26-2012, 12:46 AM
Lanckriet Lawns Lanckriet Lawns is offline
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10w 40 oil for 26 horse Kohler courage?

I have a cub cadet riding mower with the 26 horse kohler courage engine/ I got it used with approximately 50 hours on it. I see where one of the recommended oils is a 10w 30. I have a case of 10 40 napa oil that I really like in my other vehicles. I was wondering if I could use this oiil in my engine with no adverse effects. I was also wondering if the slightly heavier weight would be an advantage. I used the search function and really didn't come up with anything. thanks in advance.
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Old 04-26-2012, 06:34 PM
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Restrorob Restrorob is offline
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If 30W can be used, You shouldn't have any issues with 10W40.....


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Old 04-27-2012, 05:01 PM
oldstuff oldstuff is offline
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I know some of the Kohlers use hydraulic lifters and they need 10w30 oil so that maybe why they recommend that oil.
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Old 04-27-2012, 10:01 PM
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The chart I posted is for the engine in question and all Command twin engines....
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Old 04-27-2012, 10:36 PM
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Snyder's Lawn Inc Snyder's Lawn Inc is offline
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Quote:
Originally Posted by Restrorob View Post
If 30W can be used, You shouldn't have any issues with 10W40.....


Best stay with 10w30
Do not use 30w or it will make the lifters knock
I never tried 10w40
I always use 10w30
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Old 04-27-2012, 11:15 PM
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Do not use 30w or it will make the lifters knock

Snyder, If that were true, Do you really think Kohler would list 30w on their oil chart ?

They surely don't want to cause engine failures now do they ?
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Old 04-27-2012, 11:39 PM
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Snyder's Lawn Inc Snyder's Lawn Inc is offline
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Quote:
Originally Posted by Restrorob View Post
Snyder, If that were true, Do you really think Kohler would list 30w on their oil chart ?

They surely don't want to cause engine failures now do they ?
I dont know what they post I know what 30w will do to the hydro lifters will make them knock period
31 yrs running Kohler I found out long time ago
Now old Magnum motors could run 30w with no problems but in 95 I found out
30w would make the Command Motors Lifters knock

I know 30w wont hurt the motor Lifters will pump up just takes more time to do so But with 30w lifters will knock more often vs 10w30
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Old 04-28-2012, 01:04 AM
herler herler is offline
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I used to have that problem, one oil for this, another oil for that...
What happens one day when that machine runs low on oil?
How can you be so sure as to remember what's in it?
What if you are wrong?

Easiest way to do it is run the same oil in everything.
And yes you can most certainly run a 10w-40 in a Kohler.
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Old 04-28-2012, 07:46 AM
Sensenig's R&S Sensenig's R&S is offline
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The Kohler courage does not have hydraulic lifters. Although kohler still recommends 10w-30. I have seen excessive wear in different engines when people used 15w-40. no expierence with 10w40 but if it would be me i would stick to 10w-30. Kohler puts that on there for a reason. They do alot of engine testing with different oils.
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Old 04-28-2012, 09:54 AM
Wayne 55 Wayne 55 is offline
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Stick with what they say 10W30. THe engines now days have tighter clearances and require a thinner viscosity oil for proper lubrication. 10w30 is a detergant blend oil and 30w is non thats the diffrence. 30w is slightly thicker and will keep that viscosity at all temp ranges 10w30 is simple its viscosity is simmilar to 10w oil in winter with protection of 30w oil viscosity in summer. Comparing the 2 you will surely see 30W is thicker than 10w30 thus making those lifter knock a little when started. That engine requires a thinner viscosity and useing a 20W non detergant would do the trick eleminating valve knock.

To answer this question again go with manufactures recomendaiton and stick with 10w30. leave the 10w40 for those briggs engines.
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