RodneyBR

I'm in Ontario, Canada and was wondering what Octane Fuel for a 2010 Honda Civic, mine a manual? I bought the car used and it didn't come with a manual, so I'm not 100%. I believe standard 87 gas would be fine, but maybe because it has a manual transmission it would require higher octane.

RodneyBR

Kinda answer my own question... I found the manual online and it says:

"Fuel Recommendation
All models except Si

Your vehicle is designed to operate
on unleaded gasoline with a pump
octane number of 87 or higher. Use
of a lower octane gasoline can cause
a persistent, heavy, metallic rapping
noise that can lead to engine damage."

That being the case it seems using 87 or higher is fine. So what do you guys fill up with?

ezone

87 octane.
Top Tier Gas.

http://www.toptiergas.com/

http://www.toptiergas.com/retailers.html

Avoid alcohol/ethanol if possible, but it's not a problem if you can't.

RodneyBR

Filled up at Costco today with 91. I'll let ya know how millage/performance is. I got around 550KMs out of a tank on 87.

CraigW

iTrader: (1)

I had to run 91 in some of my Corollas to keep them quiet.

'05 & '10 Civics work fine with 87 any time of year. (non Si of course)

Wish I could avoid ethanol....now a days everyone has 10-15% added in.

RodneyBR

Definitive list of stations that sell pure, ethanol-free gasoline in the U.S. and Canada!: http://pure-gas.org/

GolNat

iTrader: (7)

No reason to spend more on higher octane, I use 87.

I get worse mpg with higher octane.

RodneyBR

I guess why some use higher octane fuel is because in most cases it doesn't use ethanol.

What year is your car and is it manual?

GolNat

iTrader: (7)

It's an 01 5 speed.

RodneyBR

So no performance difference or extra millage

RodneyBR

Opps.. posted in the wrong place..

rpm2day

Only ever go to Chevron for my fuel. If auto manufacturers and racing teams go to them for fuel, then I think they are good enough for my business. The quality is noticeable over other brands. Anyways, 87 is fine man. Like the others said, higher octane levels will hurt your gas mileage. Higher octane levels are designed for high compression, high power engines to eliminate premature combustion of the fuel inside the cylinder. Basically. Chemistry! 89 and 91 won't hurt your car, you will just spend more and spend it more often, which precludes the reason you actually purchased a Civic in the first place.

RodneyBR

Thanks for the detailed reply