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View Full Version : Kohler Oil only for Kohler motor??


koop
06-17-2007, 12:06 PM
My dealer says I should use Kohler oil for my 27 HP Kohler motor because it has special lifters in it. I asked about synthetics but he still preferred Kohler. In the Motor Oil thread it seems people run just about everything. Is oil just oil??:confused:

MOW PRO LAWN SERVICE
06-17-2007, 12:12 PM
Itz just oil.

Sydenstricker Landscaping
06-17-2007, 12:32 PM
yep, it is just oil, all comes from the same place......the ground:rolleyes: It is just another way for dealers to get you to spend the extra$$$ on the special Kohler name oil. Me personally I use pennzoil or kendall

LCPullman
06-17-2007, 12:34 PM
For the most part I think you could use any oil. But different brands of oil have different additive packages. So, you should get name brand oil (Castrol/Penzoil/Mobil/Chevron, etc.) as they will have better additive packages. If it is economical to get Kohler oil, it should be good, but sometimes manufacturers charge a premium.

haybaler
06-17-2007, 01:01 PM
it is possable that kohler uses a special additive only found in there oil. most user manuals give the api specs it has to meet and the weight but if it says to use only Kohler oil I would do it. if a couple more dollars per oil change could save you thousands in engine repairs and possible save on fuel and make it run cleaner/better why not? I run mobil 1 in my mowers and notice they burn a little more oil but go longer between changes and run better.

MOW PRO LAWN SERVICE
06-17-2007, 01:10 PM
You know i used to run kendall,now itz castrol or pennzoil how good is kendall oil.

paolaken
06-17-2007, 02:48 PM
if you check haed enough you will find who makes the oil for kohler. it will be one of the big companys.

desii
06-17-2007, 02:53 PM
if you check haed enough you will find who makes the oil for kohler. it will be one of the big companys.

Exactly...because I have never heard of "Kohler Oil Company"...:)

MowerMedic77
06-17-2007, 04:32 PM
it is possable that kohler uses a special additive only found in there oil.

Kohler oil is supposed to have an additive that helps with aeration or foaming since their lifters are prone to failure from this issue, but any good brand name 10w30 or 10w40 should work fine.

lawnboy dan
06-17-2007, 09:12 PM
10-30 only in a kohler. not 10-40

Grasman
06-18-2007, 01:25 AM
I have a Kohler 25 hp in a older Grasshopper. It used to make the clicking lifter noise. I used to use penzoil. The Grasshopper dealer said to try the Kolher oil. I have been using it now for over 9 years and no more clicking.

I also have 4 EFI fuel injected Kohlers in Exmarks. Since the good results I got using the Kohler oil in the 25 thats the oil I put in all my Kohler engines. I buy it 2 or 3 cases at a time and even though it's more expensive I feel it's worth it if it saves me from any down time or possible engine damage.

tomo
06-18-2007, 03:04 AM
10-30 only in a kohler. not 10-40

hello, 10-30 is a starting point ,depends on your local ambient conditions etc.
The other important fact is the API classification sh/sj is required at minimum.

10--30 oil is also used to obtain the best economy from an engine .Is it the best 4 the engine if the economy is the focus rather than longevity ??????

Oils shear out [wear out] to a lower viscosity

Been using a semi sythetic oil 10--40 API SM for years but then i live in a moderate to hot climate .

tomo:waving:

tomo
06-18-2007, 03:30 AM
10-30 only in a kohler. not 10-40

hello, 10-30 is a starting point ,depends on your local ambient conditions etc.
The other important fact is the API classification sh/sj is required at minimum.

10--30 oil is also used to obtain the best economy from an engine .Is it the best 4 the engine if the economy is the focus rather than longevity ??????

Oils shear out [wear out] to a lower viscosity

Been using a semi sythetic oil 10--40 API SM for years but then i live in a moderate to hot climate .

tomo:waving:

Frontier-Lawn
06-18-2007, 03:44 PM
i use this for my equipment.
http://www.royalpurple.com/header/gen1.gif

lawnboy dan
06-18-2007, 04:30 PM
tomo-i guess you dont own a kohler with chevy hydro lifters . i thought i had the lifter issue beat after i switched to mobil 1 but the noise is back again. might just try the kohler oil next

MowerMedic77
06-18-2007, 09:24 PM
I only use 10-40 in units with lots of hours and I am in sunny S. FLA

The lifter is not the issue, this style lifter has been used in Chevy's for years with little to no issue. The issue is Kohler's engine casting, they found on the vertical command engines they had excess air(or foaming) getting in one of the oil passages leading to the lifters in their breather housing(This is why they recommend their oil, less foam). They made an update kit for older units(I will have to dig for my old update books for the kit #) and changed the casting on newer units to help eliminate this issue.

tomo
06-19-2007, 06:13 AM
tomo-i guess you dont own a kohler with chevy hydro lifters . i thought i had the lifter issue beat after i switched to mobil 1 but the noise is back again. might just try the kohler oil next

hello, as mower medic mentions the oil galleries have been modified at least on the vertical engines to assist with the tappet noise problem. I operate horizontal shaft engines --walker-- . Although it was years ago now i sent a diagram of the kohler lifter measurements to a valve train specialists company .From this it was matched to a very common lifter but it WASNOT a chevy lifter .The main issue was the pushrod seat height ....

The OEM kohler lifters have had many issues from hardness to internal failure . Then we will talk about the cam shaft hardness problems and gear movement on shaft it is a shrink / press fit with no key way :hammerhead: .

Although the problems do occur in the auto industry most makers have rectified the quality control issue of valve train issuses years ago .

If people could only open there eyes 4 a moment kohler engines r about profit with only just enough invested 4 the engine to run .In saying that durability and quality has always been my priority . There r plenty of mods u can do to a kohler that would increase its durability.
Does any body else carried out mods to enhance kohler twin durability

tomo:waving:

thecrankshaft
06-19-2007, 09:24 AM
Tomo,

10W-40 is very prone to viscosity shear due to the larger range of viscosity. It belongs nowhere near an engine if standard, dino oil form.

Mowingman
06-19-2007, 09:41 AM
I started using Kohler oil years ago in a couple of Kohler engines that had problems with sticky lifters. The engines quieted right down and ran great after using that oil. I have used it ever since.
Now that I am a dealer, the only oil I keep at my shop is Kohler oil. We sell it for about $.15/qt more than a good name brand oil costs at an auto supply store.
I don't know what all, the Kohler oil has added to it, but it is worth another 15 cents in my opinion.

lawnboy dan
06-19-2007, 09:42 AM
this is all very interisting-my kohler twin has 1700 hrs on it and apart from the lifter noise -runs fine. i guess i will just live with it. next oil change will be kohler oil -just to see what happens. if you ask me kohler sets the standard for the comm engine industry -at least i have had exceptional service from all of mine. if you want to talk marginal -look at briggs and techumche

tomo
06-19-2007, 07:31 PM
hello,
Crankshaft , u r correct dino /mineral 10--40 is probaly not the best oil But ====semi syn or full syn is an entirely different story [10--40 in a mineral seems to be very rare from all the leading makers . As it had issues this could be the reason why i mainly see it in a synthetic type ] In an air cooled engine a semi syn should be the minimum. Air cooled torture there oil due to the basic fact that the engines do not have an effecnent cooling system compared to other types eg liquid cooling 230--260f not uncommon .

Lawnboy dan yes there is lesser engines on the market one of the reasons i do not mind kohlers that much .
IMO kohlers have the potential to be a far better unit at a marginal cost .
If u have ever stripped and rebuilt kohlers there r a few issues that r very obvious . Take 4 example the oil drain back hole that sits less than 1/8 inch away from the combustion chamber separated by only head gasket material . Point of note there is no what is called a fire ring to protect head gasket from combustion process. This results in head gasket failures at random .
A truly quality engine is rebuildable --fully, Kohler is getting there but only if it presents an issue 4 them .EG in v-twin i suspect the nickle seal bore is no longer
used in any model . U can not do much with a nickle seal bore if it is a problem rendering engine useless . Applying nickle seal coating was probably a lot simpler process and most likely cheaper than installing cast iron bores .
There r plenty more upgrades that can be done but instead u r forced to buy new as some of the parts cannot be replaced .There is no excuse 4 this. Main bearing conrod bearings cam bearings not being used is really very poor it would be a simple upgrade and then kohler may have the right to call itself commercial . All lesser quality engines r junk !!

As 4 kohler playing with the oil ingrediants ,yes it is fine to do so but it is indicating a problem eg the oil; galleries . It is far better to fix the mechanical issue than depend on the oil . This proves underdesign in the truck loads . This did happen occasionally on machinery ,when the maker starts to playwith oil it is a joke . Did the SPECIAL oil ever 100 % fix the issue NO

tomo:waving: :drinkup: