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MnDLawn
09-09-2009, 09:37 PM
What weight oil do you use in your mowing equipment? I don't want this to be a dino vs. synthetic thread, just weight.

mowerbrad
09-09-2009, 10:06 PM
The dixie chopper gets 15w-40 since that is also the same oil that is used in the hydrolics. But the bob-cat and 21" get SAE30.

Turf Dawg
09-09-2009, 10:15 PM
All the air cooled get Moble1 10/30

lawnspecialties
09-09-2009, 10:41 PM
All my air-cooled get 5W-30 in winter, 10W-30 in summer.

I only use synthetic, also.

Pennington Lawncare
09-09-2009, 10:52 PM
http://www.amsoil.com/storefront/ase.aspx I only use that oil for my mower and it says to use it wherever 10w-30 or 30 weight oil is recommended.

tamadrummer
09-09-2009, 11:10 PM
I use the Amsoil Formula 4 stroke 10w30/Sae 30 wt for small engines.

And wix/Napa gold oil filters.

STIHL GUY
09-10-2009, 12:07 AM
i use 10W30

02DURAMAX
09-10-2009, 01:45 AM
10/30 Syn Here

Razorblades
09-10-2009, 01:51 AM
15w-40 syn in engine and hydraulic system.

Richard Martin
09-10-2009, 05:52 AM
Pennzoil 10w30 in my engines and 15w50 Mobil 1 in my Dixie's hydros.

Nosmo
09-10-2009, 05:58 AM
Castrol SAE 30 Dino Oil. From what I have read on the Castrol site SAE 30 has more zinc in the mixture than SAE 10w30. Zinc helps prevent the wear on valve seats.

My engine has just turned over 100 hours so my next Oil and Filter change I will switch to Castrol Synthetic.

Nosmo

tmanmi
09-10-2009, 01:15 PM
Shell Rotella T 15w40 in my Kubota diesel's. That expensive Grasshopper crap in the hydro's.

Kutz Lawns
09-10-2009, 01:43 PM
All the air cooled get Moble1 10/30

Ditto on that!

Greenleaf Lawns
09-10-2009, 02:24 PM
15w50 Mobil 1

93Chevy
09-10-2009, 02:40 PM
Straight 30 for me.

alanauer
05-08-2010, 02:46 PM
All that matters is what YOU need. I'm sure there are other factors but what comes to mind are these:

Burning oil? Go to a higher number.
Short runs in low temps? Use a multi-grade.
As above but extreme? Use a syn multi.
Hard work in high temps? Higher number.
Want max oil life? Use a single grade.
Diesel? Make sure it's diesel rated.
Fuel economy paramount? Use lower number.
Want versatility? For what it's worth, I buy mine in bulk and use it year-round in everything but the two-strokes. Based on some study I settled on Valvoline 15/40.

lawnsnorth
05-08-2010, 02:59 PM
All that matters is what YOU need. I'm sure there are other factors but what comes to mind are these:

Burning oil? Go to a higher number.
Short runs in low temps? Use a multi-grade.
As above but extreme? Use a syn multi.
Hard work in high temps? Higher number.
Want max oil life? Use a single grade.
Diesel? Make sure it's diesel rated.
Fuel economy paramount? Use lower number.
.

Couldn't agree more. We use 5w30 synthetic in the winter in the tractor. 10w30 in mowers in spring. 30w in summer. 10w30 in fall.:canadaflag:

johntab
05-22-2010, 12:08 PM
I use the Amsoil Formula 4 stroke 10w30/Sae 30 wt for small engines.

And wix/Napa gold oil filters.

Same here.

topsites
05-22-2010, 12:17 PM
I don't want this to be a dino vs. synthetic thread, just weight.

Unfortunately dino and synth aren't the same thing by weight.

PPS.inc
05-22-2010, 12:44 PM
SEA 30 in everything except the 2 stroke. Always Valoline

M.A.Landscaping
05-22-2010, 01:14 PM
all my air cooled get synthetic 10w/30

alanauer
05-22-2010, 01:41 PM
Topsites, with an astonishing 18,000 posts you must know what you're talking about, but I don't understand "dino and synth aren't the same thing by weight." A dino 30 has a different viscosity than a syn 30?

johnwon
05-22-2010, 08:33 PM
Mobil 1 5W-40 TDT

Merkava_4
05-22-2010, 11:00 PM
10W-40 Valvoline.

ShooterK2
05-23-2010, 12:21 AM
10W-30 syn in everything I own that is 4 stroke, including the truck, cars, and all mowers.

DAR57
05-23-2010, 10:28 AM
10 W 30 Spring and Fall. Straight 30W in the summer.

Florida Gardener
05-23-2010, 10:45 AM
Ok, I need a couple of questions answered:

1)When people say a "straight 30," what would be an alternative 30? Why is a straight 30 better?
2)Is a synthetic proven to be better for mower engines?
3)Is the Kohler 10W30 I'm using in both my Kawi motors a bad thing?
4)If I'm changing my oil/filter every 50 hours, do I need to buy a premium filter or will OE work fine?

jkingrph
05-23-2010, 11:58 AM
I am using Mobil l 10w-40 in all engines, I have thought about Rotella T synthetic 5w40 but need to check specs first. I using Castrol 20w50 synthetic in my Scag's hydro.

alanauer
05-23-2010, 12:24 PM
Answers for Diamond

1)When people say a "straight 30," what would be an alternative 30? Why is a straight 30 better?

Straight means single-weight as opposed to multi-viscosity, and there is no alternative. Singles may last a bit longer than multis.


2)Is a synthetic proven to be better for mower engines?

There are other threads that detail the differences, but the short answer is no.


3)Is the Kohler 10W30 I'm using in both my Kawi motors a bad thing?

Not for the motors but a little for your wallet.


4)If I'm changing my oil/filter every 50 hours, do I need to buy a premium filter or will OE work fine?

Either; just avoid the non-brand-name cheapies. With such a high change-frequency, a new filter every other change would be OK.

DAR57
05-23-2010, 07:36 PM
I also shoot for oil changes every 50 HR. I use an automotive oil filter. I know less microns BUT $11 dollars for an oil filter. How much difference can THAT paper really be. Automotive for aboout $5 TOPS!