What octane should I use in my 2000 Honda Accord?

Answer 1

I have a '98 Honda Accord and I've noticed that I get better milage when using 89 octane (especially on the highway). Also, 89 octane is a bit cleaner (for the engine) than 87 octane, so if cost is not a concern, then why not?

Answer 2

You should try to use what your owners manual recommends. If it says 87 octane, and you put in 93 octane, you're throwing money away.

However, if it says use 93, unless you have some high powered V-8, you're safe to use 89 octane. 93 octane is what what will get you the most performance and horsepower if that is what is recommended, however your car can adjust to a slightly lower grade of gasoline.

In some instances however, using a slightly lower grade gasoline will yield poorer gas mileage, so you may be better off using the high test if that is what is recommended. The point is, using a slightly lower grade won't kill the car, but it may not be best for it mileage wise. I have a car that recommends 93 octane, and when I use 89, it gets 1-2 mpg less. I only do this when the price difference between 89 and 93 octane is greater than 20 cents.

Answer 3

It is fine to use regular unleaded 87 octane fuel. I'm assuming it's not been modified (like supercharger or turbo put on it). The engines come from the factory calibrated to use 87 octane. You are just wasting your money by purchasing premium fuel (93 octane). The car WILL NOT run any better. Higher octane fuel burns cooler and isn't as subject to pre-detonation (knocking and pinging) or vapor lock because it's ignition temp is higher. The only engines that really require a higher octane fuel are ones that have been heavily modified or are designed to run and be run hard, where the compression ratio's determine what type of fuel and what octane # is needed.

Answer 4

Check your owners manual. The Accord takes 93, but the computer will adjust timing and ignition, etc if you use 87. You'll get better mileage on higher octane fuel.

Answer 5

i mechanic for a living,and most of the time when you buy a higher octane your just wasting your money,,because all gas has to meet certain regulations,and 87 octane does as good in most vehicles as the mid grade or the premium grade does,,i tried running a better gas in my truck i thought it would help it,,but it didn't,it just cost me more,if you run a lower grade and it has a ping in it or spark knock,you can go to a higher grade..but you shouldn't have any problems from it,,good luck hope this help,s.happy new years also.

Answer 6

just use 87, the higher end fuels are only for engines that require it, mostly sports cars with higher compression ratios that will ping with cheaper fuel, regardless of how many cylinders it has, but I wont get into all that stuff, you should be fine with 87.

Answer 7

regular 87 works fine. if you have the V6 you could go to the 89 but the regular should do it.

Answer 8

Dont really matter ..89 would be alright..just to be on the safe side...and 91 is not needed unless you modified your engine...other than that...89 ...

JDM Nerd EF8
..::CR-X::..

Answer 9

use regular unleaded......if it pings go to the next octane higher

Answer 10

87.