Recent Topics
Bank 2 exhaust manifold on 1MZFE V6
by artbuc
Today at 01:51 AM
Thoughts on 2016 Acrua MDX 9 Speed Trans
by BISCUT
Today at 01:16 AM
Can I mix these? Same thing? (Castrol Edge STP/US)
by fernandoar
Today at 01:09 AM
Looking for YouTube channels
by Merkava_4
Today at 12:25 AM
Pennzoil confirms CaSa contributes to LSPI, maybe.
by wemay
Today at 12:20 AM
What's so special about the ACDelco PF65 ?
by Merkava_4
Today at 12:11 AM
Goodyear - what oil filters do they use?
by wemay
Yesterday at 11:45 PM
Late model AWD Astro/Safari thoughts?
by AZjeff
Yesterday at 11:36 PM
Ac delco pf63 and fram xg10575 different sizes
by moparguy19
Yesterday at 11:01 PM
what type of frog/toad is this?
by 04SE
Yesterday at 10:36 PM
Pennzoil Answers-Complete Protection and Oil Myths
by wwillson
Yesterday at 10:34 PM
Falken Pro G4 A/S
by Corollaman
Yesterday at 09:13 PM
Newest Members
MightMirage, fernandoar, WarrenZ, alexautoinc, fastcar22
55181 Registered Users
Who's Online
18 registered (chrisri, bbhero, dec219644, Char Baby, 4 invisible), 439 Guests and 134 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
55181 Members
66 Forums
236641 Topics
3812716 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#488141 - 04/04/06 09:20 AM 5W20 for snowblower?
bob_ninja Offline


Registered: 12/30/05
Posts: 571
Loc: Ottawa, ON, Canada
I am reading yet another xW20 low viscosity debate. Then I realized this new lower viscosity may be perfect for the snowblower.
When I clear snow the highest temperature is about -10C (14F) and more typical is around -20C (4F). This past winter I used it only for half of the recommended OCI (mild winter). Most runs are about 15-20 min, then a short break.
Now the manual and manufacturer's site (Briggs&Stratton) have no recommendations below 5W30 which is for the +5..-30C (+40F..-22F) range (arrow points down and doesn't terminate at the low range end). I am thinking that since I never come even close to the high end of this range that 5W20 may be more suitable. Also as it has less viscosity improvers it would shear less, etc. Plus of course the improved startup wear protection.

What do you think? Is 5W20 good enough for small air cooled engine in winter (colder climates)? I assume that it doesn't appear on the manufacturer's docs simply because it is new and was rare in the past. Opinions.

P.S.: If the choice were between a 5W20 synth, a 5W20 dino and a 0W30 synth (such as GC), which one would you choose?

Top
#488142 - 04/04/06 12:07 AM Re: 5W20 for snowblower?
H20024.6L Offline


Registered: 02/10/03
Posts: 78
Loc: New Jersey
My snowblower manual says 5-30 dino or 0-30 synthetic. It is a 9hp Ariens with a Tecumseh engine. I used sync 5-30 in my last Tecumseh engine and it seemed to 'blow' it out the exhaust and I went back to dino. I have not tried syn on the new Ariens, but I think I will stick to 5-30 dino. If I were you I would stay with the dino 5-30.

Top
#488143 - 04/04/06 05:54 AM Re: 5W20 for snowblower?
Turk Offline


Registered: 02/03/06
Posts: 8787
Loc: MN
Interesting, but when the engine warms up, and it does warm up, (touch and you'll know...) it will be at the 20 viscosity, not 30.

Tough call, call the Manufacturer !!!

Top
#488144 - 04/04/06 08:12 PM Re: 5W20 for snowblower?
bob_ninja Offline


Registered: 12/30/05
Posts: 571
Loc: Ottawa, ON, Canada
Well that is the issue, being air cooled and perhaps operating at higher temps than liquid cooled. One argument is that W20s don't provide enoguh protection from higher temps and result in more wear. Another argument is that since they are thinner they flow faster/easier thus cooling the engine better than W30s.

I am confused????

Top
#488145 - 04/10/06 01:09 AM Re: 5W20 for snowblower?
JR Offline


Registered: 08/08/04
Posts: 1010
Loc: Michigan born but my heart bel...
I have a generator with a 4 horse B&S. The serial says it is a 1972 or 1976 can't remember right off hand. But on the air shroun it says to use a 30 wt in the summer and a 5W-20 in the winter. This is not the generator manufacturer requimendation, since the sticker is a has B&S written all over it. It was my dad's til He got a new one. I got it last fall and dumped the old nasty sludge called oil out. I dumped some 15W-40 in it and used it on a job and worked it hard. I put four hours on it and it did not use a drop, but turned it pitch black. So I dumped a few ounces out and put some diesel in the crank. I ran it for five minutes and dumped it. I ran a wash with the last of the 30wt I had in my garage. I dumped that out and put rotella t 10W-30 I had layin around. I ran that for close to 30 hours. I used the last of the 10W-30 on a second run that was about as long. After that I have used valvoline 5W-20. And can be happier. It starts so much easier and seem quietier.

Top
#488146 - 04/10/06 06:35 AM Re: 5W20 for snowblower?
80caprice Offline


Registered: 08/09/05
Posts: 194
Loc: N.C.
You've got to figure in, its a snowblower being used in the harsh cold. So not only will the oil pump easier, the cold air coming in will keep it much cooler then running it in the summer. Briggs did recommend 20 weights at one time, but I guess people just didn't agree so they backed off it.

Top
#488147 - 04/10/06 07:49 PM Re: 5W20 for snowblower?
97 GTP Offline


Registered: 03/17/05
Posts: 864
Loc: LI, NY
My dad has a snow blower that's 30 years old and it has a sticker on it that says 5w20. For the amount of hours these things run, it really doesn't matter.

Top