fuel octane rating
#2
Re: fuel octane rating
octane rating does not decrease as fuel gets older. Octane rating is fuels resistance to ignition which actually increases with age to the point that it doesn't burn and cuases a lean condition.
#3
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Re: fuel octane rating
Originally Posted by hillbilly24
octane rating does not decrease as fuel gets older. Octane rating is fuels resistance to ignition which actually increases with age to the point that it doesn't burn and cuases a lean condition.
#4
Re: fuel octane rating
I would also like to know about this. I have alway heard as Artic said. The octane goes down with time and will cause detonation if you don't allow for this change.
#5
Re: fuel octane rating
Octane does drop over time - after 60 days of summer heat - it is much lower than manufactured. Octane rating is a way of comparing the fuel to the burning of an octane (8 carbon branched chain hydrocarbon) - The octane rating is made of two numbers - a research number and a motor number - Thats why it says (R+M)/2 - it's the average of the two numbers - a fuel with an octane rating of 100 will be just like octane - for reference - diesel fuel is in the 40-60 range and racing fuel is up around 112. If you run a motor with fuel outside the octane range deisnged for, it will detonate - as the octane number drops - the more likely a fuel is to detonate - combust just because of compression. I always add stabilizer to the tank if it is going to sit for more than a couple of weeks.
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Re: fuel octane rating
. I always add stabilizer to the tank if it is going to sit for more than a couple of weeks.[/QUOTE]
This will maintain the octane rating?
This will maintain the octane rating?
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Re: fuel octane rating
so if you had a 55 gal. barrel of 110 sitting around for a year, how much would the octane decrease? if i mix 55 gallons of 87, could i use it in my car?
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Re: fuel octane rating
Originally Posted by BRUCE SEROFF
if i mix 55 gallons of 87, could i use it in my car?
#9
Re: fuel octane rating
Originally Posted by BRUCE SEROFF
so if you had a 55 gal. barrel of 110 sitting around for a year, how much would the octane decrease? if i mix 55 gallons of 87, could i use it in my car?