I was filling up gas last night and saw 300C next to me filling up.
I looked over his panel and he is pouring 87 regular into tank.

So I started convo. "Do you use regular on that ride?"
Guy said "Yeah I put premium once every 4th tank"

I asked "Can you feel the difference in power?"
Guy said "Not really, just a litlte"

I talked about how manual recommends premium and cost difference is then left the pump. Maybe I should start putting cheaper gas.

 

just pay the extra money and keep ur engine happy

 

Another case of buying a vehicle you can't afford. Rule of thumb, if you can't afford to put premium in the ride you just purchased, you shouldn't have purchased it in the first place.

 

if u put 87 in it then the computor will just adjust to the octane, but it will still run. performance on the other hand may change due to the lower octane and because of that waht the ECU does.

 

I will never put anything other then premium in my car (yes, I pay for my own gas)...It just wont run properly with anything else...

 

"Fuel Requirement 89 octane unleaded mid-grade gasoline
recommended, 87 octane unleaded
regular gasoline acceptable"

for the 5.7 hemi

 

I dont understand how people think they are saving that much money by putting in 87 instead of whatever the car recommends.

 

Put the extra $3 or $4 in per visit cheap ass...

 

because some of the richest people are also the stingiest

 

You don't NEED to use premium. I actually like the idea of premium every 4th time.

 

jus cus it's "recommended" doesn't mean it "requires" premium

 

i would just put either 89 or 93, not 87, come on don't do that to your car. It's just like giving a person generic food to eat the rest of their life.

 

Some people don't need or notice the extra bit of performance they get on premium. Who cares?

 

i wish i can fill up with 100 octane everyday... only thing stopping me is the 15 miles or so i have to drive to fill up from my house...

 

If your car is only designed for 91 octane 100 octane would be a waste. So would 93 octane for that matter. Better to mix 2 parts 93 octane and one part 87 octane and pocket the change.


(Yes, I am a congenitally cheap bastard!)

 

Unless you boostin.

 

Depends on the car.. my '03 TL-P was VERY content on regular. I dont dare do it on my '97 or '05.

 

The current Accord V6's are designed to run on 87 octane and they have a compression ratio that is at least as high as the one in the old CL-S. I'm sure the RL would retard the timing if it detected knock while running 87 octane.

Allegedly Accord V6's will get another 10hp on 91 octane because the engine management computer will automatically advance the timing if there is no engine knock. I dunno if that's true but it's what I heard.

 

i'm a cheap ass I run the cheap crap in my accord,minivan,and the Ford.

the Good stuff goes in the CRX. but that's a track only car

 

the Accord V-6's I build yes they have what we call "knock senors." if you put the cheap crap in it it adjust the timing by itself.

Now side note: this was like back in 99 or 2000 when I was a senior in high school. My buddy's dad owned a speed shop with a dyno. I took my 94 Accord put it on the dyno with regular. drained the tank, ran it out of gas. filled it up with 91. it didn't change the HP rating or Torque rating. I don't have the graphs or anything i threw them out like 3-4 years ago. sorry.

 

x 10

Even my POS CRX HF gets the best stuff

 

if it doesnt make a big difference a dont see what the problem is. i think most dealers fill with 87 even if the car takes 91/92.

 

my 01 eclipse gt has a sticker on the gas door..."Premium Unleaded Fuel Only"

 

In the 300C's case, the diffference between 87 & 89 is not much at all.
In cars like the CLS, 87 & 93, or 91, is a bigger difference.

The 300C will run fine on 87. My neighbor has one & that's all he ever puts in it.

 

Might not be being cheap.
Every other day there is someone on tv saying how 93 octane is a waste of money.
I only use premium but that's because I just always have. I have put 87 and didn't feel any change in the car...its not like we are racing the cars down the street so meh who cares?

 

"Premium" = the "Best stuff"

You guys are a Marketers wet dream.

I use premium,but Im BOOSTED and my car REQUIRES it.

Otherwise...its regular.

 

I can't believe you guys that are running regular haven't had to replace your fetzer valve. I don't dare run regular. Do you have any idea what one of those runs for an Acura?

 

FYI, my brother has been running his 02 TL on regular for 65,000 miles.

 

Ive been running regular for the most part and mid-grade on my 02TL for 90,000 miles. The only time I buy premium is on 1000+mi trips or just randomly because I feel like it.

 

<---uses regular in his xB and G35x

 

the $5 a gallon and fact that you will do more damage by running 100 octane because the ECU isn't designed to burn the fuel fast enough isn't stopping you either?

 

but its so cool to say you run 100 octane in your car

 

Putting 93 in that car when its not required by Honda is wasting your money.

 

It depends what gas station you use. Sunoco, and one other station, at least in the United States, are the only companies that run their own seperate gas lines up from the port in Lousiana and Florida (talking about only East Coast here). The rest run 87,89,93 all in the same lines. The only difference is they add crap to it. Its all 87 octane, but with just various amounts of added crap. Gas stations get in trouble for it regularly, but there aren't enough investigators and money to check everything. The best thing you can do is repeatly complain about a specific station, and eventually someone will test the gas. My dad told me it takes about $1600 to test the 3 different octanes of gas at one gas station. It certainly doesnt hurt your car to put in 93 octane, but it isnt a true 93 octane. Sunoco and the other company are the only ones that have true pure octanes.

 

Some of you guys need new things to worry about. For christ's sake, I don't think I have ever taken notice of what grade of gasoline someone else was using in their car

 

i have a 3.0cl and its a v6 thats in a honda accord....i am not putting anything higher then regular into an accord engine except for once in a blue moon

 

y put anything more than regular at all??even once in a blue moon

that engine loses performance with anything higher than 87octane

 

Where did you hear this total BS???

 

I run premium
I pay for it
I wont put anything else in it
Car will run like shit without it

End of my story

 

I don't know why this conversation always comes up. Put in what is recommended by your users manual, that is what your car is designed to run on. It's not rocket science.

You are waisting your money putting 93 octane on a car designed to run on lower octane. It isn't "cleaner". And you are not going to get performance gains.

Conversely (i think someone here did the math here) the savings that you get at the pump by putting lower octane fuel in a vehicle designed for a higer octane rating, are offset by the loss in MPg mileage. The car can run on it, but it has to retard the timing. It is not running optimally.

Higher octane isnt "better" gas. When will people understand that simple statement.