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30 monograde #5328620 01/21/20 11:15 AM
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mpack88 Offline OP
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I have a 2001 Craftsman tractor I got real cheap. It has a flat twin Craftsman Briggs & Stratton motor. Do I need to run lawn mower 30 weight or will any 30 weight brand work? Coastal 30 weight a lot cheaper than the Briggs & Stratton 30 weight.

Re: 30 monograde [Re: mpack88] #5328625 01/21/20 11:19 AM
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kschachn Offline
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First off it is grade, not weight.

And besides the grade the manufacturer is also giving a license or specification. What is it?

Last edited by Kestas; 01/21/20 12:54 PM. Reason: No need to completely quote the first post in the second post.

1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: 30 monograde [Re: mpack88] #5328639 01/21/20 11:43 AM
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Astro_Guy Offline
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Anything with an API Service Category of SJ or above should be fine. See http://www.pqiamerica.com/apiserviceclass.htm


'01 Volvo V70XC, 251k, 5W-30 M1 EP
'16 Accord, 50k, 0W-20 M1 EP
Re: 30 monograde [Re: mpack88] #5328690 01/21/20 12:59 PM
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Donald Offline
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We are talking about oil for a riding mower, so 1 QT. Does cost really make a difference for 1 QT of oil a year?

Given SC I might run some synthetic 10W30 or 5W30 to deal with the heat of SC in the summer. Its air cooled via fins that are half clogged with grass.


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: 30 monograde [Re: mpack88] #5328703 01/21/20 01:15 PM
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CT8 Offline
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15W-40 heavy duty engine oil works well,


2015 F150 2.7
2018 F350 6.2
Re: 30 monograde [Re: CT8] #5328718 01/21/20 01:26 PM
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Linctex Offline
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Originally Posted by CT8
15W-40 heavy duty engine oil works well,



Same.

Been running "whatever 15W-40 is on sale" in all air cooled engines for over 30 years.


"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: 30 monograde [Re: mpack88] #5328723 01/21/20 01:29 PM
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MParr Offline
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Super Tech SAE 30 HD or Castrol SAE 30 HD and call it good.


Last edited by MParr; 01/21/20 01:37 PM.

2019 VW Tiguan SE 2.0 TSI Now: Castrol Pro OE LL IV 0W20 & OE VW
2017 Ford Escape SE 2.0T Now: Kendall GT-1 Max 5W30 FS & NAPA Gold 1348
2014 F-150 4x4 Now: Pro DS 5W20 & Motorcraft FL-500s
Re: 30 monograde [Re: mpack88] #5328762 01/21/20 02:04 PM
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Gebo Offline
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It depends on your affection for this tractor. Most any 30 weight would be fine if you aren't really looking for a long term relationship. I'm more with Donalds's advice here.

Most small engine oils (that I am aware of, Amsoil) have much higher levels of protective additives that cannot be used in auto oils. I use a synthetic small engine oil in my mowers.


'98 LEX LS400 305K
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Shell Gas and Truck 5W-30
QS HM 10W-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: 30 monograde [Re: mpack88] #5328809 01/21/20 03:14 PM
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ad244 Offline
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If there is anything that we have learned from the Project Farm videos on youtube its that you can almost run anything and a small engine will hold up.

Re: 30 monograde [Re: mpack88] #5328952 01/21/20 06:42 PM
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Eddie Offline
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That B&S twin take about 2 quarts of oil. Use a good 10w30 or 15w40 synthetic oil and forget it. That engine may have a oil filter also. Ed


2014 CX5 Touring 2.5L :-)
Re: 30 monograde [Re: Eddie] #5328995 01/21/20 07:22 PM
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wag123 Online Content
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Originally Posted by Eddie
That B&S twin take about 2 quarts of oil.
Negative. The horizontally opposed flathead twin takes 48oz.

Re: 30 monograde [Re: mpack88] #5329159 01/21/20 10:44 PM
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Dave9 Offline
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It will hold up fine long term using any major brand of 30wt detergent oil if only used spring through fall or in a warmer climate. If you might frequently use it in your 3 coldest winter months then go for 10W-30.

Re: 30 monograde [Re: kschachn] #5329160 01/21/20 10:46 PM
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Dave9 Offline
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Originally Posted by kschachn
First off it is grade, not weight.


Nope, it's weight too. That's where "wt" came from.

Last edited by Dave9; 01/21/20 10:46 PM.
Re: 30 monograde [Re: Eddie] #5329214 01/22/20 04:01 AM
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Kamele0N Offline
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Originally Posted by Eddie
Use a good 10w30 or 15w40 synthetic oil and forget it. That engine may have a oil filter also. Ed


Problem here is that you are talking about USA 30w oils....wich are ILSAC/API crap....

But what you really want in an aircooled OPE is oil with higher HTHS... Thats why here is so many happy users of 15w40 HDEOs....40w oils are not "infected" with that CAFE nonsense smile


2008 Toyota Yaris 1ND-TV 1.4 D4-D Tech9 5W30 C3 VW 504/507
1997 Toyota Landcruiser KZJ95 3.0 TD Elf Evolution NF900 5W40
Re: 30 monograde [Re: mpack88] #5329247 01/22/20 06:30 AM
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Lubener Offline
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I use SAE30 in all my riders and walk behinds. I use mostly Supertech or Harvest King unless I get a deal on a major brand.


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