premium or regular gas ?
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New Member
Joined: Apr 2010
Posts: 19
From: New York
premium or regular gas ?
i know the manual says to use 87 or higher but with gas prices these days does anyone actually use premium for there fit? and if so are there really any beneFITS that you notice ?performence? gas mileage? smoother ride?
Member
Joined: Mar 2010
Posts: 20
From: Upstate NY
I've been using premium since I got the Fit. I don't really care if there are any noticeable benefits, but I figure at 2 bucks per tank it's not a huge expenditure, and I shouldn't ever have to worry about knocking.
ive been using premium shell or premium chevron since I got my car. nothing less. no problems or knocking or pinging or any weird noises that some owners of the GEs are experiencing. i am at 15,000 miles already.
Member
Joined: Jun 2009
Posts: 77
From: Winter Park, FL
there's no reason to put premium gas in an engine designed for regular (unless you've tuned it accordingly). it isn't magically better performing, its harder to burn.
compression and heat is enough to ignite the fuel/air in the cylinder in the right conditions.
like a diesel engine with glow plugs instead of spark plugs. diesel engines run a at low compression ratio, and the diesel is easy enough to burn that it can rely more compression to ignite.
or the old car with crappy timing that manages to keep running a few seconds after you take the key out. the plugs aren't sparking, but the rotational inertia of the crank and the heat in the cylinders manages to ignite the mixture to get a few extra revolutions out.
you'll always see premium gas accompanied by high compression and aggressive timing, not because its magically powerful, but because that's when you don't want the gas to burn until its just the right moment.
running premium wont make your car faster. it'll just leave carbon deposits from the unburned moles of fuel.
it's kinda like feeding chocolate to a dog. the s**t is just to rich for the little guy.
Last edited by chrisakasparky; Apr 26, 2010 at 02:54 AM. Reason: quotes!
^BINGO^
knocking and pinging? i'd imagine cause the fuel isn't burning.
there's no reason to put premium gas in an engine designed for regular (unless you've tuned it accordingly). it isn't magically better performing, its harder to burn.
compression and heat is enough to ignite the fuel/air in the cylinder in the right conditions.
like a diesel engine with glow plugs instead of spark plugs. diesel engines run a at low compression ratio, and the diesel is easy enough to burn that it can rely more compression to ignite.
or the old car with crappy timing that manages to keep running a few seconds after you take the key out. the plugs aren't sparking, but the rotational inertia of the crank and the heat in the cylinders manages to ignite the mixture to get a few extra revolutions out.
you'll always see premium gas accompanied by high compression and aggressive timing, not because its magically powerful, but because that's when you don't want the gas to burn until its just the right moment.
running premium wont make your car faster. it'll just leave carbon deposits from the unburned moles of fuel.
it's kinda like feeding chocolate to a dog. the s**t is just to rich for the little guy.
knocking and pinging? i'd imagine cause the fuel isn't burning.
there's no reason to put premium gas in an engine designed for regular (unless you've tuned it accordingly). it isn't magically better performing, its harder to burn.
compression and heat is enough to ignite the fuel/air in the cylinder in the right conditions.
like a diesel engine with glow plugs instead of spark plugs. diesel engines run a at low compression ratio, and the diesel is easy enough to burn that it can rely more compression to ignite.
or the old car with crappy timing that manages to keep running a few seconds after you take the key out. the plugs aren't sparking, but the rotational inertia of the crank and the heat in the cylinders manages to ignite the mixture to get a few extra revolutions out.
you'll always see premium gas accompanied by high compression and aggressive timing, not because its magically powerful, but because that's when you don't want the gas to burn until its just the right moment.
running premium wont make your car faster. it'll just leave carbon deposits from the unburned moles of fuel.
it's kinda like feeding chocolate to a dog. the s**t is just to rich for the little guy.
The owners manual says to use nothing less than 87 octane fuel, they don't even sell anything as low as 87 in Europe or Asian countries where Fits were sold for years before they started arriving here 4 years ago.... The engines of the cars sold here have a 10.4:1 compression ratio and the ECU will adjust to work with fuel with an octane rating of no less than 87 but it also adjust to benefit from octane ratings that are not even sold here.
Member
Joined: Jun 2009
Posts: 77
From: Winter Park, FL
The owners manual says to use nothing less than 87 octane fuel, they don't even sell anything as low as 87 in Europe or Asian countries where Fits were sold for years before they started arriving here 4 years ago.... The engines of the cars sold here have a 10.4:1 compression ratio and the ECU will adjust to work with fuel with an octane rating of no less than 87 but it also adjust to benefit from octane ratings that are not even sold here.
i guess i have no room to talk about buying the expensive stuff just because its expensive anyways; i'm running royal purple.
Member
Joined: Apr 2010
Posts: 33
From: Odessa, TX
^BINGO^
knocking and pinging? i'd imagine cause the fuel isn't burning.
there's no reason to put premium gas in an engine designed for regular (unless you've tuned it accordingly). it isn't magically better performing, its harder to burn.
compression and heat is enough to ignite the fuel/air in the cylinder in the right conditions.
like a diesel engine with glow plugs instead of spark plugs. diesel engines run a at low compression ratio, and the diesel is easy enough to burn that it can rely more compression to ignite.
or the old car with crappy timing that manages to keep running a few seconds after you take the key out. the plugs aren't sparking, but the rotational inertia of the crank and the heat in the cylinders manages to ignite the mixture to get a few extra revolutions out.
you'll always see premium gas accompanied by high compression and aggressive timing, not because its magically powerful, but because that's when you don't want the gas to burn until its just the right moment.
running premium wont make your car faster. it'll just leave carbon deposits from the unburned moles of fuel.
it's kinda like feeding chocolate to a dog. the s**t is just to rich for the little guy.
knocking and pinging? i'd imagine cause the fuel isn't burning.
there's no reason to put premium gas in an engine designed for regular (unless you've tuned it accordingly). it isn't magically better performing, its harder to burn.
compression and heat is enough to ignite the fuel/air in the cylinder in the right conditions.
like a diesel engine with glow plugs instead of spark plugs. diesel engines run a at low compression ratio, and the diesel is easy enough to burn that it can rely more compression to ignite.
or the old car with crappy timing that manages to keep running a few seconds after you take the key out. the plugs aren't sparking, but the rotational inertia of the crank and the heat in the cylinders manages to ignite the mixture to get a few extra revolutions out.
you'll always see premium gas accompanied by high compression and aggressive timing, not because its magically powerful, but because that's when you don't want the gas to burn until its just the right moment.
running premium wont make your car faster. it'll just leave carbon deposits from the unburned moles of fuel.
it's kinda like feeding chocolate to a dog. the s**t is just to rich for the little guy.
As far as I know some "premium fuel only" cars have some sort of anti-knocking sensor that does adjust the ECU. That prevents the knocking if you put in 87 octane instead of the suggested 91. But I don't know if the Fit has this sensor, nor if it works the otherway around(using 91 instead of 87).
Member
Joined: Jan 2009
Posts: 1,433
From: CT
i put premium in once only because the pump was apparently broken and only letting 91 be pumped. It seemed like i got more mpg, but that could also be in my head, thinking that i it was better bc of the gas, and not my driving habits. I always use 87, prices are too high for anything else.
Member
Joined: Feb 2007
Posts: 1,244
From: Colorado Springs, CO
Go premium if your ride has FI (turbo or super charged). Otherwise regular should be ok, the difference won't be noticeable if at all. If you want to feel better, just get regular, and send me the difference for the premium gas. I'll happily spend the extra $$$ for you.
