10W 30 versus 5W 30

steph1October 26, 2010

Was getting a snowblower ready for winter...in reading the manual, it calls for 5W 30. However, there is an asterick saying 10W 30 is an acceptable substitute.

So I figure, lets try the recommended one...and the store has a quart for $5 (tax not included). I say, no thanks because I am thinking I have a case of 10W 30 at home. Could not choke up that amount for oil.

Is this a big deal? Any downside to using 10 verus 5W?

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andyma_gw

How cold does it get where you live?

    Bookmark   October 26, 2010 at 8:46PM
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ewalk

Its all about film strength and cold starting ease . If you live in a very cold climate -30 F without a heated garage you may have starting issues with the 10w-30 . I have used it with electric start , but with manual starting you may be cursing lol . You only change oil once a yr is $5.00 asking all that much ?

    Bookmark   October 27, 2010 at 5:42AM
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roadbike

"Was getting a snowblower ready for winter...in reading the manual, it calls for 5W 30. However, there is an asterick saying 10W 30 is an acceptable substitute."

I suspect that the instructions say 10w30 is accceptable in a higher temperature range. However, if the primary number says 5w30 then go with it. If you are using synthetic that's $5.00 per year, or $3.30 if the sump holds .66 quart like many smaller engines. It you are using dino oil it's cheaper still.

    Bookmark   October 27, 2010 at 8:58AM
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lbpod

I'm guessing that the $5 stuff was synthetic and the
case you had at home is what is called 'dino' oil,
which is much cheaper, but not as good, say some.

    Bookmark   October 27, 2010 at 9:00AM
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steph1

My climate is NJ, so not too cold. The oil for $5 was plain oil...but was tagged for marketing as Techumseh Snow King snowblower oil.

    Bookmark   October 27, 2010 at 9:11AM
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1saxman

Like ewalk said, it's all about oil temperature at start-up. If the machine is subject to outside temps in storage, and assuming the temp will be 32F or less when the snow blower is needed, I would go with 5W30 full-synthetic or synthetic blend. The lower number will provide easier starting and engine lubrication until the oil warms up. The high number takes over and protects the hot engine.
I would use the 5W30 at any starting oil temp of 40F or below, which I would say covers any snow-blowing situation.
Save the 10W30 for vehicles that can use it and/or your lawn equipment.

    Bookmark   October 27, 2010 at 3:33PM
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ewalk

Most Snowblowers go through at least a quarter of a quart of oil a season due to thermal cycling of the oil and blow by until the rings clear after initial start-up during extreme colder temperatures. Thus the use of Synthetic has its Pro's within these conditions in more ways than one . I agree with Sax use the 10W for the Summer Units is a better application lol :) .

    Bookmark   October 27, 2010 at 4:45PM
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roadbike

Don't buy machine manufacturer branded oil - you are just paying for a fancied up label. I think you are over-analyzing a very simple question. Just find the recommended 5w30 oil at an auto parts store or WalMart. Check the oil level every time before the engine is started and change it once a season. Think of it as maintaining a lawn mower for snow.

    Bookmark   October 28, 2010 at 11:47AM
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ewalk

"Check the oil level every time before the engine is started and change it once a season" The most important fact of all on any small Air-Cooled Engine ! Good Reminder RB .

    Bookmark   October 29, 2010 at 5:27AM
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mike_home

I live in central NJ. My 13 year old MTD snowblower uses 10W-30. I keep it in my unheated garage and always starts on the first pull. I think you will be fine using either oil.

    Bookmark   October 29, 2010 at 10:52AM
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1saxman

"Check the oil level every time before the engine is started and change it once a season" The most important fact of all on any small Air-Cooled Engine ! Good Reminder RB ."

Totally true.

    Bookmark   October 29, 2010 at 4:58PM
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orangedotfever

""Check the oil level every time before the engine is started and change it once a season" The most important fact of all on any small Air-Cooled Engine ! Good Reminder RB ."

Hmmmm....I haven't done that on any of my Lawnboys the entire time I've owned them. LOL

    Bookmark   October 29, 2010 at 10:02PM
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ewalk

Probably has something to do with you Oil and Gas Mix Ratio Orange ...Roflmbo !

Note: Just Kidding , I couldn't help myself Bro :)

    Bookmark   October 29, 2010 at 10:10PM
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orangedotfever

Nah, it's all the TC-W3 that keeps 'em running so fresh. :)

    Bookmark   October 30, 2010 at 4:00PM
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ewalk

Yep , I think it must be that Magic TC-W3 Blend of Your's .... Yep I certainly Do ! :)

    Bookmark   October 30, 2010 at 4:29PM
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