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Put Wrong Oil Type Into Troy Bilt Pony 17.5hp #4757680
05/15/18 08:58 AM
05/15/18 08:58 AM
Joined: May 2018
Posts: 2
Louisville, KY
MikeK777 Offline OP
MikeK777  Offline OP
Joined: May 2018
Posts: 2
Louisville, KY
I own a 2012 series Troy Bilt Pony Model 13WN77KS011. This year before changing my oil, I read somewhere on the internet, that the best type of oil for my mower was 15W50. So, I went to Autozone but they didn't have any 15W50, so I thought I would get the next best thing, which was 20W50. I thought since the numbers 15W50 and 20W50 were close numbers to each other, it would be okay to put in 20W50. So, I put in 2 quarts of 20W50 (as the owners manual said to do). I didn't think it necessary to have to read the dipstick to see if there was going to be enough oil. So, I went ahead and started mowing with it. This is for residential use only, not commercial use. I cut my grass about once a week and it takes me about 20-30 mins to finish cutting my grass. The temperature where I live, recently has been running between 80-95 degrees past few weeks. Since, I put the 20W50 in my mower- I ran the mower about 3 times with no problem. However, (yesterday) the 4th time I ran it just as I was about to finish, all of a sudden it started blowing out HEAVY BLACK SMOKE! I stopped it, examined mower for oil leaks, etc. no leaks but when checking dipstick it appeared that the oil level was ABOVE THE LINE (meaning too much oil), so I emptied it out. Did some research on the internet, that is when I found out that my model number takes ONLY 44 OUNCES OF OIL, NOT 48 OUNCES OF OIL. My concern is whether or not, I have done any damage to the engine IF THE PROBLEM WAS EITHER CAUSED BY TOO MUCH OIL OR WRONG OIL TYPE??? I'm no expert with Riding Mowers. Feel free to give me your thoughts, suggestions, advice. Thanks.

Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757686
05/15/18 09:03 AM
05/15/18 09:03 AM
Joined: Apr 2010
Posts: 4,455
Storrs, Connecticut
jeepman3071 Offline
jeepman3071  Offline
Joined: Apr 2010
Posts: 4,455
Storrs, Connecticut
Black smoke is usually fuel, not oil. Oil would be blue or heavy white smoke. I doubt over filling that engine by 4 ounces would cause that, I've seen engines overfilled more than that without doing that.

20w50 is a bit thick but with that temperature shouldn't cause any issues. If it still smokes, I would look into the fuel system as the tractor may be flooding.


2000 Jeep Cherokee 4.0L (181k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (34k) - Castrol Edge Euro 0w40, MANN HU816X
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757687
05/15/18 09:03 AM
05/15/18 09:03 AM
Joined: Mar 2012
Posts: 1,310
San Antonio, TX
E150GT Offline
E150GT  Offline
Joined: Mar 2012
Posts: 1,310
San Antonio, TX
I doubt any damage was done and I doubt the oil matters except maybe there was too much. My brother used to turn the lawnmower sideways for a bit and then run it to make a smoke show. He never bothered to add oil or change it and that thing lasted years.


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 251k 5w30
2016 Mazda6 Touring 6MT - 57k 10w30
2006 Buick Lucerne CXL 3.8 31k 5w30
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757692
05/15/18 09:07 AM
05/15/18 09:07 AM
Joined: Jan 2017
Posts: 1,511
VW Fanboy Island
maxdustington Offline
maxdustington  Offline
Joined: Jan 2017
Posts: 1,511
VW Fanboy Island
welcome welcome welcome

I thought oil burning was white or blueish smoke? Black smoke means unburnt fuel I think?
A slight overfill is probably not going to cause that. Fire that bad boy up again and see what happens.

First post and you're already ignoring recommendations and using thicker oil! You will fit in well here.


03 Jetta AWP/09A 205k kms
Edge 0W40 + Mann 719/30
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757695
05/15/18 09:08 AM
05/15/18 09:08 AM
Joined: Aug 2003
Posts: 12,953
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 12,953
NE,Ohio
So let me get this straight..

you read randomly on the internet to use a certain grade of oil 15w50 instead of the recommended 5w30/straight 30wt.. then bought an even thicker grade...

then filled it without checking the level.. then mowed 4x.

the whole decision process there seems abit suspect. were alcohol or drugs involved?

Also 2 quarts is 64oz of oil not 48.. it was severely overfilled. Could be anything from no damage to popping a Headgasket etc.



2019 Jeep Cherokee Trailhawk 2.0T
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757696
05/15/18 09:08 AM
05/15/18 09:08 AM
Joined: Dec 2017
Posts: 1,137
US
JLTD Offline
JLTD  Offline
Joined: Dec 2017
Posts: 1,137
US
20W50 instead of 15W50 - at your temperatures - there is no difference. Since you have removed the excess oil, in your place I would run it and see what happens. Likely no damage.


I'm a thickie; assimilate
But 20s have their place

Using AMSOIL

Hers: 2008 Jeep Liberty 138k, SS 5w30/Amsoil

His: 2015 4Runner 41k, OE 5w20/Wix

Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757701
05/15/18 09:10 AM
05/15/18 09:10 AM
Joined: Oct 2004
Posts: 3,115
Midwest, Illinois
beanoil Offline
beanoil  Offline
Joined: Oct 2004
Posts: 3,115
Midwest, Illinois
Probably no harm done. But your first mistake was believing what's on the interwebs. A quick google got me your OWNERS MANUAL, and in it it specifically refers your to the ENGINE MANUAL for oil type, weight, and quantity.
2 engines on that model according to the MANUAL, Briggs and Kohler, neither of which would take 15w50.
So drain the oil you have in it, refer to the MANUAL, and get what's listed in it. From artwork, and hints in the MANUAL, it looks like pressure lube systems on both engines, so should be no harm done to the engine. If there is a filter, did you change it as well? If not, a new filter, a couple quarts of what recommended in the book, and get back to mowing.


Have in hinted enough in the reply that your manual is the source for info?

Last edited by beanoil; 05/15/18 09:12 AM.

beanoil: Tough under heat, real dirty afterwards.
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757703
05/15/18 09:11 AM
05/15/18 09:11 AM
Joined: Nov 2013
Posts: 65
York, Pa
fozzdesy2001 Offline
fozzdesy2001  Offline
Joined: Nov 2013
Posts: 65
York, Pa
Black smoke usually comes from too much gas like running with the choke on or a plugged up air filter. If the smoke was whitesh or bluesh that would be a sign of burning oil. I don't think 4 oz over full of oil will cause any problem.


2001 Subaru Forester S
Replaced with a 2006 Forester

2004 Subaru Forester XT
Death by deer. Replaced with 2003 Impreza Outback Sport (beater)
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757705
05/15/18 09:15 AM
05/15/18 09:15 AM
Joined: Dec 2017
Posts: 19
GA
dmoses42 Offline
dmoses42  Offline
Joined: Dec 2017
Posts: 19
GA
2 quarts is 64 ounces, not 48.

Sorry, Rand, just noticed you already pointed that out...

Last edited by dmoses42; 05/15/18 09:18 AM.
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757713
05/15/18 09:18 AM
05/15/18 09:18 AM
Joined: Sep 2015
Posts: 5,945
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,945
Kalifornia Kollective
Black smoke - fuel issues. Nothing to do with oil.

The 20W-50 did not hurt a thing. The overfull, maybe a bit of power loss. If it wasn't smoking (blue) and it wasn't puking oil out the breather, it was OK - not good, but OK.

Change the oil again to something with a 30 in it (SAE 30, 15W-30, 10W-30, etc.) and get into the fuel system.

My bet is there is/was some debris in the tank that migrated to the float bowl and stuck the needle open so it flooded the intake... You need to install an in-line fuel filter and clean the carb.


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757727
05/15/18 09:25 AM
05/15/18 09:25 AM
Joined: Oct 2014
Posts: 12,001
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,001
Idaho
The 20w- 50 will be fine in your temps.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757745
05/15/18 09:39 AM
05/15/18 09:39 AM
Joined: Aug 2003
Posts: 10,865
Buffalo, NY
JTK Offline
JTK  Offline
Joined: Aug 2003
Posts: 10,865
Buffalo, NY
Agree with the above. 20w50 wouldn't harm this thing at all.


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757754
05/15/18 09:45 AM
05/15/18 09:45 AM
Joined: Oct 2009
Posts: 3,324
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,324
Wet side WA
LOL really I think you folks have been trolled!


2004 Corolla 125335
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777] #4757764
05/15/18 09:58 AM
05/15/18 09:58 AM
Joined: Oct 2004
Posts: 3,115
Midwest, Illinois
beanoil Offline
beanoil  Offline
Joined: Oct 2004
Posts: 3,115
Midwest, Illinois
Better to have trolled and lost than not have been trolled at all?
You almost have to answer the OP ? just on the fact their might be someone that actually got into the situation presented.
If trolled, at least some alien being will see this on a digital chip captured from space and think "dang those humans were a strange and silly lot..."


beanoil: Tough under heat, real dirty afterwards.
Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: beanoil] #4757786
05/15/18 10:30 AM
05/15/18 10:30 AM
Joined: Mar 2008
Posts: 5,872
South Florida
bubbatime Offline
bubbatime  Offline
Joined: Mar 2008
Posts: 5,872
South Florida
Originally Posted By: beanoil
Probably no harm done. But your first mistake was believing what's on the interwebs. A quick google got me your OWNERS MANUAL, and in it it specifically refers your to the ENGINE MANUAL for oil type, weight, and quantity.
2 engines on that model according to the MANUAL, Briggs and Kohler, neither of which would take 15w50.
So drain the oil you have in it, refer to the MANUAL, and get what's listed in it. From artwork, and hints in the MANUAL, it looks like pressure lube systems on both engines, so should be no harm done to the engine. If there is a filter, did you change it as well? If not, a new filter, a couple quarts of what recommended in the book, and get back to mowing.


Have in hinted enough in the reply that your manual is the source for info?


Pretty condescending, especially if the OP has a Briggs engine in which case your condescending post is wrong. Every word of it. Briggs has recommended 15W50 synthetic for a few years now for commercial use engines, or engines that run for hours on end.


17 Chrysler Pacifica Mobil 1 5W30
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 PZL Plat 5W30
06 GMC Sierra Nextgen 10W30


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