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JoelKlein


I wonder how a 2021 snow blower will look like...

Joined: Sep 26, 2011
Points: 74

While I wait for the snow, what about the fuel?
Original Message   Dec 25, 2011 9:50 am
Happy holidays every one! ... bought the toro 1028 OXE back in October, right after the very first early snow storm. Was not able to try it in snow... I added the startron stabilizer And filled up the tank with 93 octane. I tested the new baby, showed off without spinning augers... But now it's a long time unused. My question is: is it okay for the fuel to sit in the carb for such a long time? Thanks!
This message was modified Dec 25, 2011 by JoelKlein


Toro 1028 OXE
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JoelKlein


I wonder how a 2021 snow blower will look like...

Joined: Sep 26, 2011
Points: 74

Re: While I wait for the snow, what about the fuel?
Reply #12   Dec 25, 2011 11:25 pm
Sorry, I was away for a couple hours. here is the story About the high octane: first of all, my dealer recommended NOT LOWER then 89 for the Toro 1028. Maybe he is wrong. I will call up Briggs and ask. I am brand new to OPE. About the Toyota: I reaserched for sooooooooo looooooong about the high octane, the compression, and about the detergent issue. I asked saverel Toyota certified mechanics at the dealers services. The all told me that the ECU will detect the octane level, and will adjust the engine to it. The sequoia/ tondra can be fitted with the TRD high performance kit, which includes bigger fuel injectors, Air Intakes, etc... And then you should use higher octane, becouse the engine is going to compress up to 9:1 instead of the standard 8:1. Now, even without the TRD kit installed, I can In fact stay in a higher gear at the same speed, When i use higher octane. Versus with 87 octane my transmission keeps its self bussy shifting gears up and down. But this is all fine as long as I'm drivIng with the octane in mind... Once I go HARD on the paddal, I'm anyway forcing the transs in to the lower gear... So money in trash... It might be worth trying 89 instead of 92/93. But I'm afraid the gas turnover is much less and not fresh! If any one here feels. That I am wrong, I'm willing to learn. I'm open.
This message was modified Dec 25, 2011 by JoelKlein


Toro 1028 OXE
fleetfoot


Joined: Jan 23, 2011
Points: 19

Re: While I wait for the snow, what about the fuel?
Reply #13   Dec 26, 2011 12:36 am
From page 15 of the 1028 owners manual, "Fill the fuel tank with fresh unleaded regular gasoline from a major name-brand service station (Figure 26)." Typically, regular unleaded gasoline has an octane rating of 87 depending on elevation. The detergent level is independent of octane level.
JoelKlein


I wonder how a 2021 snow blower will look like...

Joined: Sep 26, 2011
Points: 74

Re: While I wait for the snow, what about the fuel?
Reply #14   Dec 26, 2011 9:02 am
About the detergent level: I'm puzzeled, alot of people says its the same and that is the Law and allot of people say its 87 does have less of it. What I need, is some hard facts!

Toro 1028 OXE
RedOctobyr


Location: Lowell area, MA
Joined: Nov 5, 2011
Points: 282

Re: While I wait for the snow, what about the fuel?
Reply #15   Dec 26, 2011 9:53 am
JoelKlein wrote:
The all told me that the ECU will detect the octane level, and will adjust the engine to it. The sequoia/ tondra can be fitted with the TRD high performance kit, which includes bigger fuel injectors, Air Intakes, etc... And then you should use higher octane, becouse the engine is going to compress up to 9:1 instead of the standard 8:1.

The engine's knock (ping) sensor will monitor how the engine is running, yes. The ECU may try to advance the ignition timing, to produce more power. Higher octane gas will allow the timing to be advanced more, without knocking/pinging. If you run lower octane gas, the ECU will retard the timing to avoid knocking. You might see less power and reduced mileage. I had a car that recommended premium. When premium got to a level that I thought was unreasonable (~$1.80, as I recall. Clearly this was a number of years ago ), I switched back to regular. The engine automatically adjusted, and I could feel that it had a bit less pep, and my mileage dropped a little. But it was still cheaper.

But the engine cannot, so far as I know, change the compression ratio on the fly. The only ways to do that that I can think of would be to change the head, pistons, or maybe the crankshaft. But I don't think the compression ratio can change while you're using it.
carlb


Joined: Nov 16, 2010
Points: 279

Re: While I wait for the snow, what about the fuel?
Reply #16   Dec 26, 2011 10:11 am
There are only a few ways to increase compression ratios in an internal combustion engine.  One decrease the size of the combustion chamber by
1. either using a flat top or dome piston (in place of a dished piston), and or using a set of heads with a smaller combustion chamber.
2 using forced induction such as a turbo or supercharger.

Injectors, air cleaners and headers will do nothing to increase compression ratios.

Higher octane fuels can help hp when the if the  ecu can advance the timing by helping the engine not have pre-ignition or ping thus increasing hp a bit.

Most engines will not see any difference in performance or gas milage using high octane fuel.  In fact a low compression engine (8:1)will probably run worse on high octane gas.
JoelKlein


I wonder how a 2021 snow blower will look like...

Joined: Sep 26, 2011
Points: 74

Re: While I wait for the snow, what about the fuel?
Reply #17   Dec 26, 2011 11:24 am
So all I need is a forlmula to calculate the added engine HP and how often the engine Actuly take advantage of it... Otherwise I'm like writing a 5 line paragraph on a big 11x17 sheet! But what about the detergent factor? Any ideas ?

Toro 1028 OXE
Coldfingers


Joined: Nov 20, 2008
Points: 84

Re: While I wait for the snow, what about the fuel?
Reply #18   Dec 26, 2011 11:45 am
I use the 91 octane in all my small engines because the 87 and 89 here has 10% ethenal in it and the dealer told me that stuff goes bad faster than the regular gas without it. The 91 does not have ethenal in it as its for off road, collector cars, and stuff like that.
Stainless


Joined: Nov 17, 2011
Points: 24

Re: While I wait for the snow, what about the fuel?
Reply #19   Dec 26, 2011 1:56 pm
How does forced induction change an engine's compression ratio?  It doesn't impact the bore or stroke of the engine.
Shryp


Location: Cleveland, OH
Joined: Jul 26, 2010
Points: 532

Re: While I wait for the snow, what about the fuel?
Reply #20   Dec 26, 2011 2:10 pm
Forced induction basically compresses the air before it enters the cylinder.  Basically, you get more volume of air in the same space.
JoelKlein


I wonder how a 2021 snow blower will look like...

Joined: Sep 26, 2011
Points: 74

Re: While I wait for the snow, what about the fuel?
Reply #21   Dec 26, 2011 2:54 pm
So back to snow blowers. What's the issue with 87 octane? What does it mean " major brand" gas ?

Toro 1028 OXE
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