Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

been reading about oils and even posting about it lately .so i decided to do a bit of investigating.

picked up my latest briggs update manual... 2004 vintage.

and inside was a nice bragg about their synthetic oil.

they say they are at the time of printing the only ones selling a synthetic oil for air cooled engines.and they go on to whine about how much better it is when your engine is hot .

every other synthetic oil is supposedly for liquid cooled engines.

so folks im curious ,what does your bottle of synthetic oil say on the side.

lets hear about it

later chris

ps my snowblower just has regular 5w30 and its fine. 

chris,
I just read your other posts from the other thread. I'm not going to try to convince you that a proper grade of quality synthetic oil is better than a similar conventional oil. But I believe a quality synthetic to be so far superior, there is no comparison. Too much personal practical experience and anecdotal  experiece of trusted friends to think otherwise.

I did some poking around & found a MSDS sheet for the Briggs 5W-30 synthetic engine oil.

http://www.briggsandstratton.com/miscpdfs/RNT/MSDS%20synthetic%205w30.pdf

It's a PAO synthetic and I wouldn't be surprised at all if it had some additional additives to help with the temps in an air cooled engine.  But  I would really doubt that it would be significantly better than Amsoil or Mobil M1 synthetic oil, if tested for consumption over a moderate service period, of say 10 to 25 hours.

While the combustion chamber temps of an air-cooled 4 cycle are over 400 Fdegrees, on a practical basis, the oil in the sump is more in the 200F to 250F range.

Per the MSDS sheet, this Briggs synthetic oil has a flash point of 430 degrees F, which actually is a bit curious, as  M1 5W-30 is slightly higher at 435 degrees F.

Either way, any PAO based synthetic engine oil will be rated excellent for high temperature volatility.

I'll take Mobil 1 everytime. 

I guess if its good enough for this:



17,500 RPM Test
The Mercedes-Benz Formula 1 engine is an amazing device. Although specific information
is protected better than many government secrets, this 3.0-liter

V-10 engine produces something in the neighborhood of 800 horsepower and can rev on the high side of 17,500 rpm. Naturally, Team McLaren Mercedes uses Mobil 1.

I'ts probably good enough for this:

 You think? 

Four cycle motorcycle engine Mobil 1. How about flash points from 487 to 518 degrees F. Last time I checked my bikes have all been air cooled.


Typical Properties

Mobil 1 Motorcycle Oils	MX4T	V-Twin	MX2T
Product Number	48138-2	48139-0	48140-8
Engine/Application Type	4-Cycle	4-Cycle	2-Cycle
SAE Grade	10W-40	20W-50	N/A
Service Classification	API SH, SG/CF	API SH, SG/CF	API TC, JASO FC, ISO-L-EGD (proposed)
Gravity, API	30.5	29.4	29.1
Density, lb/gal @ 60°F	7.28	7.33	7.35
Flash Point (ASTM D92), °C (°F)	253 (487)	270 (518)	88 (190)
Pour Point, °C (°F)	-54 (-65)	-51 (-60)	-42 (-44)
Viscosity
Kinematic, cSt @ 40°C	86.0	130.0	90
Kinematic, cSt @ 100°C	13.8	17.7	13.7
Cold Cranking, cP	2900 @ -20°C	2930 @ -10°C	N/A
Pumping, cP	11500 @ -30°C	8500 @ -20°C	N/A
Viscosity Index	164	150	152

Any high quality dino oil works fine in air cooled engines. I have used Castrol GTX for decades without issues in air cooled motorcycles and power equipment.

B&S' statements are BS.

John

now calm down guys ...

i was just posting about what briggs had put in there update.

that synthetic oil of theirs isnt even available in our little part of the world.

the only reason i have the dino oil in my snowblower is because its a kaboom engine and its got a short life expectancy.

and then ill be putting on an ohv somthing or other we have hondas ,noname honda look a like s and briggs and soon to get mitsubishi and a bunch of other stuff including kawasaki.

i would really like on of those 15 horse v twin kawi engines. that would just about make me happy.

anyway when i get a new engine i will for sure use the synthetic oil ,im sold i use the synthetic mix oil in my big butt husky chainsaw.

its just not worth it for every engine out there,it might keep my old kaboom going forever and then i couldnt replace it ,know what i mean.

later chris  

This is very interesting statement!

I learned something today

God Bless

Emmo wrote: I don care what kind of oil you put in it, just gimmie the keys and You have my word I will heat it up for you or die trying