Recent Topics
Ghetto testing a wheel speed sensor
by Nayov
06/24/18 06:23 AM
dash cam
by DAC2018
06/24/18 05:08 AM
WoO driver Jason Johnson injured
by bdcardinal
06/24/18 01:08 AM
Plastic burning smell when WOT
by Jaha24k
06/24/18 12:57 AM
Duckham's 15w50 Oil 12 one liter bottles
by Lolvoguy
06/24/18 12:00 AM
Ruger LCP .380
by PW01
06/23/18 11:24 PM
Launching boat with stick shift
by troutfisher
06/23/18 11:22 PM
Free oil
by Spitter
06/23/18 10:53 PM
Porsche Panamera buying advice
by CharlieBauer
06/23/18 10:04 PM
RC cars
by red7404
06/23/18 09:36 PM
Any Good 4K Movies ?
by Warstud
06/23/18 09:06 PM
Gray on Oil Dipstick?
by chinee
06/23/18 08:41 PM
Clear plastic scratch remover?
by Quattro Pete
06/23/18 08:15 PM
Parking wars show.
by Chris142
06/23/18 08:15 PM
set for years
by 93cruiser
06/23/18 08:07 PM
Looking to replace 2005 Sienna with SUV
by i6pwr
06/23/18 07:26 PM
Trying to fix chainsaw
by turtlevette
06/23/18 06:48 PM
tire rotation
by marine65
06/23/18 06:48 PM
Reese hitch $30 Walmart YMMV
by pda1122
06/23/18 06:14 PM
Managing Anger During Unexpected Tire Change
by TheLawnRanger
06/23/18 06:14 PM
Newest Members
bwechols, bowupid, pod423, lemaitrix, azzid0906
65303 Registered Users
Who's Online
75 registered (Astro14, andyd, 2009Edge, 1foxracing, 4WD, 7 invisible), 1131 Guests and 66 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65303 Members
67 Forums
285891 Topics
4771061 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4469480 - 07/24/17 10:40 PM kohler ECV749
mobilaltima Offline


Registered: 02/03/11
Posts: 1150
Loc: Golden Meadow, LA
Gravely Commercial Pro Turn 260, 60 inch cut. It has a Kohler V-twin Model ECV749, 26.5 hp with 1,250 hours. I use it nearly everyday at work(thankfully have not had to sit in that old work truck at the gate lately) and it gets worked hard. I've been using 15W40 at 50-60 hr intervals with no problems, the one time I tried 20W50 it really did seem to lack power, so I've been using 15W40 since. We crank them up(we have two of them), let them idle for 2-3 minutes, then its full throttle till both fuel tanks run out, constantly bogging down in thick,wet grass shutting off the engines stopping in between. I looked up the oil specs for this engine, it shows 10W30 for 0 to 100 degrees, and straight 30 for 50 to 100 degrees. With 1,250 hrs on it, would it be safe to use straight 30, and would it maybe free up some power over the 15W40? Whatever I decide to go with, I'll start changing it at the recommended 100 hrs.
_________________________
2006 2500 Dodge 5.9 Cummins Mobil Delvac 15W40, Fleetguard Stratapore 90k miles
Early '99 F250 ECLB 7.3 Stroker, 223k miles

Top
#4469503 - 07/24/17 11:12 PM Re: kohler ECV749 [Re: mobilaltima]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
I think 15w40 would be fine, 20w50 is overkill and might affect the hydraulic lifters
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4469505 - 07/24/17 11:16 PM Re: kohler ECV749 [Re: mobilaltima]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
Thats pretty much what I'll do for the first start of the day. Start the mower and then I'll go and put the blower and weed whacker in the backyard. I don't always warm them up though, but most times I'm not really cutting thick grass so it's not like the engine is heavily loaded.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4469620 - 07/25/17 05:43 AM Re: kohler ECV749 [Re: mobilaltima]
AirgunSavant Offline


Registered: 07/22/15
Posts: 3772
Loc: MD
Kohler is all over the place with those graphs.
They list 20w50 for my 33 HP and suggest 10w30 is like a winter blend.
I think T6 Rotella 5w40 would be ideal for your commercial mower.
Great oil.

Top
#4469755 - 07/25/17 08:29 AM Re: kohler ECV749 [Re: mobilaltima]
AirgunSavant Offline


Registered: 07/22/15
Posts: 3772
Loc: MD
This is one of the many graphs Kohler puts out
And they change rapidly
This is for the Command series

Top
#4469757 - 07/25/17 08:30 AM Re: kohler ECV749 [Re: mobilaltima]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
A mower needs synthetic oil imo.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4469764 - 07/25/17 08:39 AM Re: kohler ECV749 [Re: motor_oil_madman]
AirgunSavant Offline


Registered: 07/22/15
Posts: 3772
Loc: MD
I'm with that since it is a commercial machine and run hard plus at high temps

Originally Posted By: motor_oil_madman
A mower needs synthetic oil imo.

Top