Honda Car Forum

I have a 2001 Honda Civic EX and I usually use just regular gas, but will switching to the mid grade gas give me better MPG or performance? Thanks ahead of time!

No, your car has a N/A engine, the gain would insane minimal to non existence, and if there would be any minimal increase on fuel consumption it will be useless since that gas cost more.































You can use a car performance simulator to virtually see what changes improves your performance, try at http://www.nxgtrsim.com

No. Higher octane has no more energy, just a higher flashpoint. Higher flashpoint means it detonates at a higher temp and can withstand the high compression of high performance motors, thus eliminating knocking.















Use 87 and you'll be fine and more $ in your pocket.

No, it wont. Gasoline is gasoline. The higher octane fuels have anti knocking compounds for higher compression engines. Cars needing high octanes is primarily due to the higher compression needed to develop their rated horsepower output. With today's computers on cars adjusting so many variables using mid grade or regular on cars that specify premium is also not an issue. I do that. Its cheaper. The only way to get more performance or better MPGs out of your car is for you to,first, drive more conservatively for more miles per gallon, or second, to install a higher power motor in the engine compartment. I drive a 2001 Audi TT Roadster, 180 HP, 5 speed, fwd, car. For more power I would need to trade it in for the 230 hp model, 6 speed, all wheel drive model. Best of luck.

nope ! not unless your computer is set up to run on 89. if it,s not then your just wasting your money.

most likely not, it could if you had excessive knock count on one or more of your cylinders... but more than likely u will get worst gas mileage using a higher octane fuel...































HIgher octane fuel is for higher compression engines. the higher compression rates makes fuel alot more volantile, thus the higher octane fuel is less likely to prematurly ignite under high compression...































if you want to get better mpg, consider getting a tune, as well as properly infalted tires, good alignment, mainteance up to date, and even consider cleaning the maf sensor. u can get maf cleaner for like $6 and clean it your self, and often(exspecially with older vehicles) you will increse mpg by 1-2 mpg... (decreasing the weight of the vehicle and its contents can/will also increase mpgs)































also consider one of the heavist weighing factors of mpgs, is the driver input. if you have a lead foot, and speed towards red lights and what not. you will kill ur mpg, most ppl dont understand no matter how efficent your engine is, you wont be getting the cllaimed #'s if you drive heavy... best of luck