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#3124975 - 09/14/13 08:42 PM Oil suggestions for commercial mowers
jd37055 Offline


Registered: 09/13/13
Posts: 2
Loc: Tennessee
Hello board brothers. Thanks for allowing me to enter your board. I have been running John Deere mowers for a while now. I did have a local dealer and purchased John Deere 10w30 oil. When they closed down I started using Castro gtx 10w30. Then I thought I would try Napa oil. I am on here to see what the members suggest. I really liked the John Deere oil but I need something I can buy local. This year my mowers have been used and abused more than ever. One newer has over 1200 hours and other has over 800 hours. They both have Kawasaki engines. I want to do whats best for them. Synthetic,synthetic blend, extended life or other? For the record I run rotella 15w40 in my power stroke and my wrangler with Napa gold filters.
Thanks for suggestions

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#3124981 - 09/14/13 08:47 PM Re: Oil suggestions for commercial mowers [Re: jd37055]
mitsuman47 Offline


Registered: 07/22/07
Posts: 222
Loc: East Texas
Assuming that the mowers take 10w30, rotella t5 10w30 or mobil 1 HM 10w30 would both be great choices. Napa gold filters are great filters for your OPE as well.

Which mowers do you have? How many hours between oil changes?


Edited by mitsuman47 (09/14/13 08:50 PM)
_________________________
'05 Civic 5MT ~258k mi
PU 5w-20, Mobil 1 oil filter, Fram air filter. 10k mi OCI

Honda HRX217 Mobil 1 HM 10w-30 (rescued from negligent previous owner)

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#3124982 - 09/14/13 08:48 PM Re: Oil suggestions for commercial mowers [Re: jd37055]
lubedude13 Offline


Registered: 07/14/13
Posts: 377
Loc: North Carolina
I use Amsoil small engine oil since its synthetic and has the additives designed for small engines
_________________________
2010 Toyota Camry:
Amsoil Signature Series 0W20
Amsoil Signature Series Trans Fluid
Amsoil ATF Power Steering Fluid

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#3124984 - 09/14/13 08:50 PM Re: Oil suggestions for commercial mowers [Re: jd37055]
tomcat27 Offline


Registered: 06/25/09
Posts: 2565
Loc: Midwest
Personally I would (and do ) use Rotella. a friend of mine owns a lawn service and has a dozen mowers with the Kawasaki motors. loves them. 2000-3000 hours on them. He uses Pennzoil Yellow bottle. 30W in the summer; 10-30 in spring and fall. so they work great on PYB. once again, I'd "upgrade" to Rotella.
_________________________
2015 Nissan Sentra, 2005 Starcraft Aurora 2410, 2002 Echo
2002 Intrepid, 2002 Liberty, 1998 Dodge B1500
1996 Sebring Jx, 1995 Jeep ZJ, 1970 Cougar

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#3125005 - 09/14/13 09:04 PM Re: Oil suggestions for commercial mowers [Re: jd37055]
danthaman1980 Offline


Registered: 03/12/10
Posts: 711
Loc: SE Wisconsin
Any HDEO or API SL PCMO in 10W-30 will work well. I use Rotella T5.
_________________________
2003 Chevy Silverado 1500 5.3 LS Quadrasteer ~215,000 miles; PU SM 5W-30/Fram Ultra

2014 Mazda6 Sport 2.5 Skyactiv ~19,000 miles; Mazda w/Moly 0W-20

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#3125011 - 09/14/13 09:09 PM Re: Oil suggestions for commercial mowers [Re: jd37055]
jd37055 Offline


Registered: 09/13/13
Posts: 2
Loc: Tennessee
They do call for 10w30. I try to go for 75 hours between hours but there has been a few times they have gone 100 hours between oil changes. I see rotella in 15w40 oil often but I guess that's what I look for guess I will look for 10w30 oil.
The amsoil is something I have seen but just not sure where to buy it. I am hoping to get 2000 hours out of these mowers
They are John Deere 757 and 737 models
Thanks for the fast reply

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#3125025 - 09/14/13 09:18 PM Re: Oil suggestions for commercial mowers [Re: jd37055]
mattwithcats Offline


Registered: 06/13/13
Posts: 757
Loc: Virginia
A full synthetic 10W-30 or 10W-40 will work.

Don't use a High Mileage oil, it contains seal swellers.

NAPA synthetic can be bought for around $3.50 when its on sale....

However, any decent name brand of 10W-40 will work...

http://manuals.deere.com/cceomview/OMTCU15013_L1/Output/OMTCU15013_L19.html

In the Military, we change Synthetic at 200 hours...
You should be fine at 100 hours...
http://manuals.deere.com/cceomview/OMTCU15013_L1/Output/OMTCU15013_L17.html


Edited by mattwithcats (09/14/13 09:20 PM)

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#3125075 - 09/14/13 10:31 PM Re: Oil suggestions for commercial mowers [Re: danthaman1980]
Gabe Offline


Registered: 02/22/11
Posts: 1425
Loc: Indiana
Originally Posted By: danthaman1980
API SL PCMO in 10W-30 will work well.


That was my first thought - VR1 or M1 HM. HM oils have slightly more seal conditioners and work great in newer, low mileage motors too.

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#3125098 - 09/14/13 11:21 PM Re: Oil suggestions for commercial mowers [Re: jd37055]
Bandito440 Offline


Registered: 02/13/12
Posts: 1781
Loc: Northern NY
Another vote for Rotella T5 or T6. Pick your flavor.
_________________________
'13 Forester 2.5X 5MT - NAPA 0w-20 & Wix 57830
'97 R1100GS - RL 20w-50, KN-163, Shockproof Heavy

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#3125137 - 09/15/13 12:51 AM Re: Oil suggestions for commercial mowers [Re: jd37055]
mattwithcats Offline


Registered: 06/13/13
Posts: 757
Loc: Virginia
Don't run high mileage oil in newer engines
or even engines that don't burn oil or leak..

Seals will swell, then wear, then fail...

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#3125147 - 09/15/13 01:17 AM Re: Oil suggestions for commercial mowers [Re: mattwithcats]
SuzukiGoat Offline


Registered: 02/04/13
Posts: 398
Loc: Louisiana
Originally Posted By: mattwithcats
Don't run high mileage oil in newer engines
or even engines that don't burn oil or leak..

Seals will swell, then wear, then fail...


Proof?



The vtwin kawi sometimes develop a knock on 20w50... no one has been able to successfully explain way.

I have a bad boy with the vtwin and cut 2.5 acres twice a week, run 10w30 synthetic and a huge mobil1 filter on it. Synthetic is whatever is on sale. The mobil1 filter was just extra and Luckily fit the mower.

Next year is 0w40 mobil1.

20$ a year is cheap insurance for me.
_________________________
1995 Suzuki Sidekick Auto 4x4 on 33s. Low mileage motor in 200k body. Denso with M1 0w40.

1996 Geo Tracker Auto 4x4 Denso VNG 10w30. 120k.

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#3125167 - 09/15/13 02:38 AM Re: Oil suggestions for commercial mowers [Re: jd37055]
mattwithcats Offline


Registered: 06/13/13
Posts: 757
Loc: Virginia

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#3125184 - 09/15/13 04:41 AM Re: Oil suggestions for commercial mowers [Re: jd37055]
SuzukiGoat Offline


Registered: 02/04/13
Posts: 398
Loc: Louisiana
How will using a high mileage synthetic lower oil consumption after using high mileage oil? His info at the end doesn't really add up.

Realistically fuel dilution, a problem for vtwin kawi motors on mower apps, has likely swollen the seals as much as they can get anyways.

I wouldn't try to find a high mileage oil. But I wouldn't avoid it either.
_________________________
1995 Suzuki Sidekick Auto 4x4 on 33s. Low mileage motor in 200k body. Denso with M1 0w40.

1996 Geo Tracker Auto 4x4 Denso VNG 10w30. 120k.

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#3125246 - 09/15/13 06:38 AM Re: Oil suggestions for commercial mowers [Re: jd37055]
dnewton3 Offline



Registered: 05/14/07
Posts: 5715
Loc: Indianapolis, IN
I have a Scag with the same Kaw engine you likely have, if these are the air-cooled engines.

These are not picky or finicky engines, in terms of lubes. Use any decent dino PCMO or HDEO and you'll be fine. I use Rotella 10w-30 dino lube, but I'm not married to any brand; that just happens to be a fairly easy one for me to get at a good price.

You certainly don't "need" a syn in this application, unless you intend to greatly extend the OCI.

Of note, for a bit of engine info, if you have the vertical shaft a/c engines like mine, then the 19hp through 25hp engines are actually all the same long blocks, and only the intake/carbs are different to vary the power ratings. Only the largest one (25hp) actually uses an oil cooler (block mounted aluminum heat exchanger at the filter mount), but I bought one for my 19hp engine and added it for a very modest price ($35 IIRC). You might consider that if you have concerns for hot oil. However, if you're running a liquid cooled engine, this is not as big a deal.


Edited by dnewton3 (09/15/13 06:41 AM)
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

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#3125253 - 09/15/13 06:42 AM Re: Oil suggestions for commercial mowers [Re: mattwithcats]
dnewton3 Offline



Registered: 05/14/07
Posts: 5715
Loc: Indianapolis, IN
Originally Posted By: mattwithcats



After seeing Pat ramble on about filters yesterday, and then suggest the "best" filters are the OEM filters, I officially made a mental note to promptly ignore him from now on ...
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

Top
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