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SAE 30 Oil Mower #4511019
09/08/17 04:34 PM
09/08/17 04:34 PM
Joined: Sep 2017
Posts: 7
Dallas Texas
Tool_Guy_John Offline OP
Tool_Guy_John  Offline OP

Joined: Sep 2017
Posts: 7
Dallas Texas
Hi I recently bought a beat up 190cc js30 push behind mower.
Bought at garage sale for $45 because it wouldn't run.
Just put new gas in it and it ran decently.

Anyways oil recommendation is SAE 30...
Now I don't mean to start a [censored] match at all.
But is there a general brand that is ideal. (Or are these air cooled mowers pretty robust?

Want this thing to last me a good while

(Yes I already bought spark plug, air filter, and going to clean carburetor today)

Thanks

Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511026
09/08/17 04:48 PM
09/08/17 04:48 PM
Joined: Sep 2004
Posts: 1,114
Basehor, KS
JayhawkRoy Offline
JayhawkRoy  Offline

Joined: Sep 2004
Posts: 1,114
Basehor, KS
I have used all sorts of name brand SAE 30 (even Super Tech) in mowers like that with the same good results. Choose a quality SAE 30 and you are golden. One does not seem to be better than any other. My current stock is Valvoline.

Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511031
09/08/17 04:57 PM
09/08/17 04:57 PM
Joined: Nov 2013
Posts: 2,013
Chicago, IL
EdwardC Offline
EdwardC  Offline

Joined: Nov 2013
Posts: 2,013
Chicago, IL
If you don't have any SAE30 on hand, I would personally not hesitate to use 10W-30, 5W-40, 10W-40 or 15W-40 of pretty much any brand at all. And even then, if I had no oil on hand, I probably still wouldn't buy SAE30, I'd probably get 15W-40. A common recommendation is the Rotella line of HDEO in OPE.

Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511032
09/08/17 05:03 PM
09/08/17 05:03 PM
Joined: Mar 2008
Posts: 6,084
South Florida
bubbatime Offline
bubbatime  Offline

Joined: Mar 2008
Posts: 6,084
South Florida
Ive used hundreds of gallons of store brand SuperTech, NAPA and Ace Hardware brand SAE30 in my old mower shop and found it to be good stuff. I really dont think you can go wrong with ANY of the SN rated SAE30 oils on the market, in a push mower.

Throw the carb in the trash. You can replace it with a cheap carb on eBay or Amazon for as little as $15. Its like two bolts. Videos on YouTube if you have never changed one before.

Cut the fuel line and put a fuel line shutoff on it when you clean/repair the carb.
https://www.amazon.com/Briggs-Stratton-698183-Shut-Off-Selected/dp/B0038U3JKM


17 Chrysler Pacifica Edge Syn 5W30
13 Yamaha XT250 Valv MC 10W40
10 Acura TSX 2.4 SuperTech Syn 5W20
06 GMC Sierra SuperTech 10W30


Re: SAE 30 Oil Mower [Re: EdwardC] #4511041
09/08/17 05:21 PM
09/08/17 05:21 PM
Joined: Jun 2014
Posts: 2,114
IL
Vern_in_IL Offline
Vern_in_IL  Offline

Joined: Jun 2014
Posts: 2,114
IL
Originally Posted By: EdwardC
If you don't have any SAE30 on hand, I would personally not hesitate to use 10W-30, 5W-40, 10W-40 or 15W-40 of pretty much any brand at all. And even then, if I had no oil on hand, I probably still wouldn't buy SAE30, I'd probably get 15W-40. A common recommendation is the Rotella line of HDEO in OPE.


Why would you use a detergent oil in a motor where all it's service life has seen non detergent oils?

Non detergent would be the best because the engine has no filter, therefore dirt should sink to the bottom.

Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511046
09/08/17 05:36 PM
09/08/17 05:36 PM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline
bigj_16  Offline

Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
I'd run a little Techron through it for a while. If it is running now, it'll probably be all right. Get some Super Tech and dump it a few times.

Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511050
09/08/17 05:41 PM
09/08/17 05:41 PM
Joined: Jul 2012
Posts: 417
Michigan
khittner Offline
khittner  Offline

Joined: Jul 2012
Posts: 417
Michigan
Most 30 weight is detergent oil, unless it says "ND". I'd think you'd want detergent oil to keep the crud in suspension, so that it comes out when the oil is drained. I run 5w-30 passenger car oil in my OPE, all run fine with it, and all are > 15yrs. old.

Re: SAE 30 Oil Mower [Re: Vern_in_IL] #4511057
09/08/17 05:52 PM
09/08/17 05:52 PM
Joined: Dec 2016
Posts: 7,991
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 7,991
Waco, TX
Originally Posted By: Vern_in_IL
Non detergent would be the best because the engine has no filter, therefore dirt should sink to the bottom.


Vern, You are severely misinformed. ND 30 hasn't been recommended for any engine in over 50 years.

I use whatever 15W-40 HDEO (diesel oil) I can find cheap in all of my 20 or so odd air cooled OPE engines.,


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511064
09/08/17 05:59 PM
09/08/17 05:59 PM
Joined: Dec 2003
Posts: 10,078
Florida, Cape Coral
Eddie Online sleepy
Eddie  Online Sleepy

Joined: Dec 2003
Posts: 10,078
Florida, Cape Coral
I use T5 10w30 for all my air cooled engines.


CX5 Touring 2.5L :-)
Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511091
09/08/17 06:35 PM
09/08/17 06:35 PM
Joined: Oct 2015
Posts: 455
MN
TmanP Offline
TmanP  Offline

Joined: Oct 2015
Posts: 455
MN
Use any detergent SAE 30 or any 10w30 changed at any halfway reasonable interval and sleep well. Air cooled mowers are about as robust as they come. As long as it has some oil in it, you'll be fine. If the oil is changed once in its lifespan, you are ahead of most people. That said, I'd use any 10w30 that you have laying around and change it once a year.


2012 Toyota Camry 2.5 30,000 mi
2015 Chevy Silverado LT Z71 5.3 V8 30,000 mi
2010 Toyota Sienna 3.5 V6 150,000 mi
Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511105
09/08/17 06:57 PM
09/08/17 06:57 PM
Joined: Oct 2009
Posts: 4,007
Wet side WA
JohnnyJohnson Online content
JohnnyJohnson  Online Content

Joined: Oct 2009
Posts: 4,007
Wet side WA
I just use the left over oil from my OCI's on my Corolla which is all some kind of 30 SAE. It's been on synthetic for a few years now and still running great! I change it out a few times a year just to get rid of surplus left over oil.

Last edited by JohnnyJohnson; 09/08/17 06:58 PM.

2004 Corolla 129820
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: SAE 30 Oil Mower [Re: Vern_in_IL] #4511136
09/08/17 07:48 PM
09/08/17 07:48 PM
Joined: Mar 2008
Posts: 6,084
South Florida
bubbatime Offline
bubbatime  Offline

Joined: Mar 2008
Posts: 6,084
South Florida
Originally Posted By: Vern_in_IL
Why would you use a detergent oil in a motor where all it's service life has seen non detergent oils?

Non detergent would be the best because the engine has no filter, therefore dirt should sink to the bottom.






1637 post on the board and you STILL haven't figured this out yet. Slow learner perhaps?


17 Chrysler Pacifica Edge Syn 5W30
13 Yamaha XT250 Valv MC 10W40
10 Acura TSX 2.4 SuperTech Syn 5W20
06 GMC Sierra SuperTech 10W30


Re: SAE 30 Oil Mower [Re: bubbatime] #4511184
09/08/17 09:10 PM
09/08/17 09:10 PM
Joined: Sep 2004
Posts: 131
South La
passgas55 Offline
passgas55  Offline

Joined: Sep 2004
Posts: 131
South La
I used ST 30wt in the past and I am going back to it for all my lawn equipment. My generators get 10/30 fake dino because
I may have to use them in the winter time. I might have to dig around to see a if any one compared PYB 30wt to ST 30wt.

Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511257
09/09/17 12:30 AM
09/09/17 12:30 AM
Joined: Feb 2008
Posts: 1,158
PA
umungus1122 Offline
umungus1122  Offline

Joined: Feb 2008
Posts: 1,158
PA
SuperTech SAE 30 or 15w-40 is fine.


'95 Chevy 1/2t 305 208k -NexGen Maxlife 5w-30, Wix filter
'89 Jeep Comanche 4.0 278k - GC 0w-30, Bosch LongLife filter
Re: SAE 30 Oil Mower [Re: Tool_Guy_John] #4511342
09/09/17 06:54 AM
09/09/17 06:54 AM
Joined: Feb 2003
Posts: 8,068
Jupiter, Florida
Cujet Offline
Cujet  Offline

Joined: Feb 2003
Posts: 8,068
Jupiter, Florida
Remember that 10W-30 is generally not equivalent to straight 30 under high temperature conditions, such as using a lawn mower in the Southern summertime.

10W-30 HTHS 2.7-3.0 (conventional/synthetic)
Straight 30 HTHS 3.7

HTHS is the viscosity at the elevated temp of 150 C. In this example, higher is better.

There is a reason straight 30 has performed so well, for so many years. It retains sufficient viscosity at the elevated temps sometimes found in air cooled engines.

Look at the oil temp in my old Kawasaki powered Snapper mower, after a bit of normal use.



People who count on their fingers should maintain a discreet silence.
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