Why do we need 91 or higher octane?
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,614
Likes: 6,440
From: Honah Lee
While well intentioned I am sure, this is not good advice regarding ethanol fuel. I would advise reading up on phase separation and the hydrophilic nature of ethanol. I would never advise someone to leave ethanol fuel in a tank for a year. That is truly asking for trouble.
I am72 and we have had 10% here on the coast for 35 years. I work on everything including major rebuilds. (Think my last will be the Jeep you see in my avatar) I see no problems with for 4-5 months . My Harley did set now almost 8 and I pulled the fuel. It however would run. First time I have ever saw bottom of tank. It has some kind of sealer coatings on it. No rust.
My Yamaha two stroke Outboard routinely clogs up if it sits too long. Just gummed up oil mix from the evaporated fuel.
I don't see the doom and gloom being ethanol. But just my opinion.
Stellar HDF Member
Joined: Nov 2005
Posts: 3,183
Likes: 837
From: KMHT KFMY
They are added at the tank farms
Bob's Discount Gas may be selling the EPA mandated formulation, where a BP is selling "Top Tier" gasoline with a detergent and additive package that keeps things from carboning up.
https://www.toptiergas.com/licensed-brands/
Stellar HDF Member
Joined: Apr 2016
Posts: 3,324
Likes: 2,114
From: Masshole
Why even consider a lower octane, you associated it to price. For easy math sake let's say you ride 15k miles a year, average 50mpg and your higher octane costs .50c a gallon more, that's only 150$ a year!
Now let's make the thread even more interesting. What's the best type of oil to run in that lowered octane bike?
Now let's make the thread even more interesting. What's the best type of oil to run in that lowered octane bike?
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,171
From: SE Michigan
It may all come out of the same tank farm, what differs between brands is the additives and detergents.
They are added at the tank farms
Bob's Discount Gas may be selling the EPA mandated formulation, where a BP is selling "Top Tier" gasoline with a detergent and additive package that keeps things from carboning up.
https://www.toptiergas.com/licensed-brands/
They are added at the tank farms
Bob's Discount Gas may be selling the EPA mandated formulation, where a BP is selling "Top Tier" gasoline with a detergent and additive package that keeps things from carboning up.
https://www.toptiergas.com/licensed-brands/
Seasoned HDF Member
Joined: May 2017
Posts: 5,915
Likes: 5,929
From: NorCal
Why even consider a lower octane, you associated it to price. For easy math sake let's say you ride 15k miles a year, average 50mpg and your higher octane costs .50c a gallon more, that's only 150$ a year!
Now let's make the thread even more interesting. What's the best type of oil to run in that lowered octane bike?
Now let's make the thread even more interesting. What's the best type of oil to run in that lowered octane bike?
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From: Beyond Fucital
