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#4757680 - 05/15/18 08:58 AM Put Wrong Oil Type Into Troy Bilt Pony 17.5hp
MikeK777 Offline


Registered: 05/15/18
Posts: 2
Loc: 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.

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#4757686 - 05/15/18 09:03 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
jeepman3071 Offline


Registered: 04/15/10
Posts: 4149
Loc: 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 (179k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (32k) - Castrol Edge Euro 0w40, MANN HU816X

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#4757687 - 05/15/18 09:03 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
E150GT Offline


Registered: 03/11/12
Posts: 1069
Loc: 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 5 speed - 247k 5w30
2016 Mazda 6 manual 6speed - 46k 5w30

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#4757692 - 05/15/18 09:07 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
maxdustington Online   content


Registered: 01/21/17
Posts: 420
Loc: Toronna
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.
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#4757695 - 05/15/18 09:08 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
Rand Offline


Registered: 08/20/03
Posts: 12601
Loc: 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.

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2017 Jeep Cherokee Trailhawk V6

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#4757696 - 05/15/18 09:08 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
JLTD Offline


Registered: 12/15/17
Posts: 526
Loc: 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.
_________________________
2015 4Runner SR5 1GR-FE
Testing: Amsoil OE, 5w20 vs 5w30...then longer OCI on SS

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#4757701 - 05/15/18 09:10 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
beanoil Offline


Registered: 10/17/04
Posts: 2930
Loc: 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?


Edited by beanoil (05/15/18 09:12 AM)
_________________________
beanoil: Tough under heat, real dirty afterwards.

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#4757703 - 05/15/18 09:11 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
fozzdesy2001 Offline


Registered: 11/22/13
Posts: 57
Loc: 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)

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#4757705 - 05/15/18 09:15 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
dmoses42 Offline


Registered: 12/21/17
Posts: 16
Loc: GA
2 quarts is 64 ounces, not 48.

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


Edited by dmoses42 (05/15/18 09:18 AM)

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#4757713 - 05/15/18 09:18 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
BrocLuno Offline


Registered: 09/06/15
Posts: 5410
Loc: 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.

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#4757727 - 05/15/18 09:25 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
CT8 Offline


Registered: 10/09/14
Posts: 10739
Loc: Idaho
The 20w- 50 will be fine in your temps.
_________________________
Artificial intelligence is no match for natural stupidity, we shall prevail

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#4757745 - 05/15/18 09:39 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
JTK Online   content


Registered: 08/14/03
Posts: 10506
Loc: 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)

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#4757754 - 05/15/18 09:45 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2616
Loc: Wet side WA
LOL really I think you folks have been trolled!
_________________________
2004 Toyota Corolla 120908
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 73822
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4757764 - 05/15/18 09:58 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: MikeK777]
beanoil Offline


Registered: 10/17/04
Posts: 2930
Loc: 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.

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#4757786 - 05/15/18 10:30 AM Re: Put Wrong Oil Type Into Troy Bilt Pony 17.5hp [Re: beanoil]
bubbatime Offline


Registered: 03/18/08
Posts: 5575
Loc: 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
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10 Acura TSX 2.4 PZL Plat 5W30
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