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Premium Gas, Is it worth it?

 
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Old 05-21-2008, 11:53 PM
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Premium Gas, Is it worth it?

would I notice any difference in proformance or fuel milage by running higher grade gas in my car, I run 87, but was just wondering... also would changing to +2 bosh plugs cause lower MPG for a while?

Thanks
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Old 05-22-2008, 01:32 AM
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I can't remember what motor you have. IF its a h22 or h23 you would definitely benefit from using the recommended octane of 91 or higher. You would get better mileage and power. For an F22, if I recall its not as high compression and if the owners manual says regular unleaded then you wouldn't really benefit that much from higher octanes. This is what I know from what I've gathered anyways.
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Old 05-22-2008, 01:37 AM
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Originally Posted by PreludeS View Post
would I notice any difference in proformance or fuel milage by running higher grade gas in my car, I run 87, but was just wondering... also would changing to +2 bosh plugs cause lower MPG for a while?

Thanks
If I remember correctly, the service manual for my old Accord, which had the same motor as you, said to run 89 or higher. I know it was more than regular gas but once that car got over 150K miles, we just put regular in it. It has around 270K now with the current owner and still runs like a champ.
Just for the benefit of the engine, run some 89 in it about every 3-4 fill ups and run some STP in it.
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Old 05-22-2008, 03:27 AM
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Short answ, mebbie?

You get what you pay into it. but the engine will get to like what it receives regularly. I run mid grade in mine, as per the factory spec.. and avg 32mpg around town, almost 36 hwy unless I ride her hard.

Short term octane varience makes no difference except what you pay at the pump.. and you'll burn your valves if you are not giving it what its used to. Stick with what it's used to.

A redneck eating caviar will puke.
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Old 05-22-2008, 09:22 AM
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I have been putting 89 in mine, if you think about it, the compression ratio on our wonderful machines is 10:1, as compared to all the others which are much lower, like 9:1 or lower, so the higher octane is needed with the higher compression ratio. Plus, it's an extra 10 cents a gallon... we have close to a 12 gallon tank, so at the MOST your looking at an extra $1.20 to fill up your lude while keeping it in prestine condition and making it run like a champ.

But that's just me, I have a H22A motor, so idk what your motor is
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Old 05-22-2008, 10:30 AM
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when i was running premium i noticed a slight power gain...but in my town they got rid of all premium gas so i have to run regular
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Old 05-22-2008, 11:35 AM
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when i was running premium i noticed a slight power gain...but in my town they got rid of all premium gas so i have to run regular
Thats Prelude discrimination!
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Old 05-22-2008, 11:36 AM
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Thats Prelude discrimination!
Alot more then Preludes. lol
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Old 05-22-2008, 04:57 PM
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you'll get better mileage w premium. use NGK plugs, hondas come from factory with them. i like bosch, but ngk plugs go in the honda, bosch goes in the ski doo and w/e else
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Old 05-22-2008, 05:29 PM
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I always ran 93 in my h23.
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Old 05-22-2008, 05:38 PM
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ive seen like 3 of these same threads...

and yes...if it says use premium, use it
i do
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Old 05-22-2008, 06:28 PM
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Quote:
Originally Posted by HondaNeedsBoost View Post
ive seen like 3 of these same threads...

and yes...if it says use premium, use it
i do
^^ Agreed about the other threads thing, I remember having this same discussion two other times within the past 2 months at least, but im just too lazy to go find the other threads. lol. This car is starving for attention i guess bc i have worked on it for 6 days STRAIGHT... now the effin headlight is fogged up on the inside, so its time to bust out my good one from storage and do a replacement job
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Old 05-22-2008, 09:25 PM
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92preludeH23= premium gas only...F22 (same engine as 95-97 vtec accords). you can use regular.. the reason you have to use premium is the compression ratio in H23'svsF22's, my dad bought an f22 with cool air..i have a stock h23 with short ram, mine felt much more powerful.
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Old 05-22-2008, 09:27 PM
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higher octane fuel burns cleaner. enough said.
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Old 05-22-2008, 10:21 PM
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Quote:
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I have been putting 89 in mine, if you think about it, the compression ratio on our wonderful machines is 10:1, as compared to all the others which are much lower, like 9:1 or lower, so the higher octane is needed with the higher compression ratio. Plus, it's an extra 10 cents a gallon... we have close to a 12 gallon tank, so at the MOST your looking at an extra $1.20 to fill up your lude while keeping it in prestine condition and making it run like a champ.

But that's just me, I have a H22A motor, so idk what your motor is

Not to be a nut buster but wrong. The Toyota Prius is 13.0 compression and they sugest mid octance in cincinnati 89. In Indianapolis they sug regular.

Heat is why You run higher octance. Higher octance resists pre detination. Contrary to belief higher octance wont give you a noticable amount of power on a stock engine.

Now race engine that can run off pump gas an race fuel their will be a differance because the engine will run more efficently.
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Old 05-24-2008, 12:55 PM
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I found a nice little place out in the hills about a 25 min drive...small gas station/diner that sells 94 octane, pure gas, no alcohol....its a few cents cheaper than regular in town premium...and I hide it from my friends muaha
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