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kawasaki oci? #4103898 05/22/16 08:02 PM
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motor_oil_madman Offline OP
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I have a gravely zero turn mower with a Kawasaki FX481V motor. This is a 15.5hp twin cylinder motor with an oil filter. So the mowers manual only mentions changing the hydro fluid and doesn't say anything about the motor oil, but I notice on the hour meter display it tells you to change it every 50, but the manual for the Kawasaki motor says oil every 100 and filter every 200hrs. I went ahead and followed what Kawasaki says. I'm going to use one of my Polaris labs Uoa kits that I bought and send in a sample, but what do you guys think? The oil is dark brown at the moment and I have 90hrs on the mower. I use delo 400 15w40. I also changed the oil after the first 8hrs like it said in the Kawasaki manual. Should I just start changing it every 50 from now on?


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: kawasaki oci? [Re: motor_oil_madman] #4103905 05/22/16 08:07 PM
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bubbatime Offline
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No, you are fine changing it every 100 hours.

Rule of thumb is 50 hour changes if you dont have an oil filter or 100 hour changes if you do have an oil filter.

And yes, running the filter for 200 hours is fine as well, if you want. I use a Motorcraft FL-910S on mine and change it yearly since the filter only cost $3.XX at Wal-Mart.

Originally Posted By: motor_oil_madman
I use delo 400 15w40


Good choice.


2019 Honda CRV 1.5T dealer bulk
2017 Chrysler Pacifica SuperTech synthetic 5W20
2013 Yamaha XT250 Valvoline motorcycle 10W40
2006 GMC Sierra SuperTech high mileage 5W30

Re: kawasaki oci? [Re: motor_oil_madman] #4103916 05/22/16 08:20 PM
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Mantooth Offline
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I have the Kawasaki 23hp twin cylinder on my '06 Hustler Z mower. My manual mirrors what was mentioned above. I only put 60hrs or so on mine each season so I just follow a change every spring oci. Filter stays on for two seasons, running a Fram TG right now.

Run Rotella T 15w40 with zero problems. Did a uoa last year and everything came back fine.


'14 Durango AWD 3.6,(mine) Hav ProDS 5w30/Napa Gold
'15 Journey AWD 3.6, (wife's) Napa Syn 5w20/Napa Gold
'01 F250 4x4 7.3PSD, 126k, M1 TDT 5w40/MC

Re: kawasaki oci? [Re: motor_oil_madman] #4103926 05/22/16 08:38 PM
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Ethan1 Offline
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The manual for my Kawasaki v-twin says to do a break-in change @ 8 hrs and change it every 100 hours after that.

The FL-910s works, but you can get even more capacity with the FL-400s smile

Re: kawasaki oci? [Re: Mantooth] #4103932 05/22/16 08:42 PM
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motor_oil_madman Offline OP
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Originally Posted By: Mantooth
I have the Kawasaki 23hp twin cylinder on my '06 Hustler Z mower. My manual mirrors what was mentioned above. I only put 60hrs or so on mine each season so I just follow a change every spring oci. Filter stays on for two seasons, running a Fram TG right now.

Run Rotella T 15w40 with zero problems. Did a uoa last year and everything came back fine.


So your mowers manual states change every 50hrs? My thinking is Kawasaki knows more about how far you can go on the oil than the mower manufacturer.

Last edited by motor_oil_madman; 05/22/16 08:43 PM.

2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: kawasaki oci? [Re: motor_oil_madman] #4103953 05/22/16 09:16 PM
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AirgunSavant Offline
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I'd go 50 hrs- cheap insurance.
Exmark says the first change should be in 5 hrs. ( 24.5 hp)
I did so and the oil was already very funky.
If I don't do 50 hrs this season then I'll do it every mowing season.
We are only talking a hair over 2 qts anyway!

Re: kawasaki oci? [Re: motor_oil_madman] #4103958 05/22/16 09:27 PM
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Mantooth Offline
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Originally Posted By: motor_oil_madman
Originally Posted By: Mantooth
I have the Kawasaki 23hp twin cylinder on my '06 Hustler Z mower. My manual mirrors what was mentioned above. I only put 60hrs or so on mine each season so I just follow a change every spring oci. Filter stays on for two seasons, running a Fram TG right now.

Run Rotella T 15w40 with zero problems. Did a uoa last year and everything came back fine.


So your mowers manual states change every 50hrs? My thinking is Kawasaki knows more about how far you can go on the oil than the mower manufacturer.


Sorry, my post was probably as clear as mud. My kawasaki manual says every 100 hrs.

I mow about 3 acres and my motor has never missed a beat. After 538 hrs, I can say that kawasaki makes a great lawnmower engine.


'14 Durango AWD 3.6,(mine) Hav ProDS 5w30/Napa Gold
'15 Journey AWD 3.6, (wife's) Napa Syn 5w20/Napa Gold
'01 F250 4x4 7.3PSD, 126k, M1 TDT 5w40/MC

Re: kawasaki oci? [Re: Mantooth] #4103981 05/22/16 10:22 PM
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motor_oil_madman Offline OP
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Originally Posted By: Mantooth
Originally Posted By: motor_oil_madman
Originally Posted By: Mantooth
I have the Kawasaki 23hp twin cylinder on my '06 Hustler Z mower. My manual mirrors what was mentioned above. I only put 60hrs or so on mine each season so I just follow a change every spring oci. Filter stays on for two seasons, running a Fram TG right now.

Run Rotella T 15w40 with zero problems. Did a uoa last year and everything came back fine.


So your mowers manual states change every 50hrs? My thinking is Kawasaki knows more about how far you can go on the oil than the mower manufacturer.


Sorry, my post was probably as clear as mud. My kawasaki manual says every 100 hrs.

I mow about 3 acres and my motor has never missed a beat. After 538 hrs, I can say that kawasaki makes a great lawnmower engine.


I ran amsoil in my smaller mower and at 1300hrs you could still think it was a brand new engine taking the valve cover off.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: kawasaki oci? [Re: motor_oil_madman] #4109466 05/29/16 05:30 AM
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TiredTrucker Offline
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I don't put 100 hrs a year on my mower. the oil gets changed annually on the Kaw in my JD Zero turn, along with the filter.


Freedom is not about having the choice to do what you want, but the choice to do what you ought.
Re: kawasaki oci? [Re: TiredTrucker] #4109605 05/29/16 08:31 AM
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motor_oil_madman Offline OP
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Originally Posted By: TiredTrucker
I don't put 100 hrs a year on my mower. the oil gets changed annually on the Kaw in my JD Zero turn, along with the filter.


I'll be changing it and taking a sample in about a week or so, coming up on 100hrs.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: kawasaki oci? [Re: motor_oil_madman] #4112830 06/01/16 08:29 PM
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motor_oil_madman Offline OP
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I might just run amsoil like I did before even if the uoa looks fine, I don't really like how dark the regular oil gets. It's more money, but I can easily cover the cost.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: kawasaki oci? [Re: motor_oil_madman] #4114378 06/03/16 03:42 PM
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NH73 Offline
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Originally Posted By: motor_oil_madman
I might just run amsoil like I did before even if the uoa looks fine, I don't really like how dark the regular oil gets. It's more money, but I can easily cover the cost.
Why don't you use Rotello T6 5w40? Find some on sale and I would say, just as good as the Amsoil stuff.


2017 Toyota RAV4 Hybrid
2004 Ford Explorer Sport Trac
2012 Gravely ZT XL 48 w/ Kawasaki FR730
Re: kawasaki oci? [Re: NH73] #4116355 06/05/16 10:36 PM
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motor_oil_madman Offline OP
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Won't the 5w40 sheer in 100 degree temps?


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: kawasaki oci? [Re: motor_oil_madman] #4116539 06/06/16 07:46 AM
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doitmyself Offline
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At my workplace, I have an EXmark zturn with 23 hp Kawasaki. I put 80 -90 hrs/ year on it. I do one OCI per year. For fun, I tried the Exmark synthetic 30w/10w30 (similar to Amsoil's OPE oil). It did well, but the UOA showed it sheared a bit. Using Rotella T5 10w30 now, but no UOA's.

Our grounds dept. uses Shaefers 15w40 and with UOA's are doing extended OCI's of about 150 hours.


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