Anyone use 87 octane gas? Whats the CR for the 01-03 type S? I think its 10:1...

 

 

CL-S = Premium Fuel

 

Please use what they recommend which is 91 or better I believe. You should be better gas mileage with the higher oct I believe.

 

Call me a heretic, but I've used mostly 87 for the last year. I average over 30MPG with it, and get better MPG with 87/89 than with 91/93. My CL-S is basically just a commuter car to me though.

Edit: CR is 9.8:1, I believe.

 

I dont have the manual in front of me, but i believe the CR is 9.8:1 for the cl-p and 10.5:1 for the cl-s.

edit: Just checked my manual and the above is correct.

 

manual states 91+ only. The car is engineered to work with a premium fuel only. Sure, it will work with 87, but your performance will not be optimal, and you might run into problems (dirty injectors and etc) years from now.
you should have just bought Camry or accord, they are designed to work with 87.\but if you have performance car, it needs 91

 

well if it was 9.8-1, i would use 87. But @ 10.5-1, i will have to use 91. thanks for the clarification. Im going to swap in my J32A2 within 2 weeks in my 98 AV6 and was just making sure. Even @ 10-1 comp. it would be close.

 

CLS has a built in knock sensor. you can run any fuel octane from 87-93 in it and it will adjust timing accordingly.

 

i dont know how much adjustability the PCM has for that purpose, but i cant use my knock sensor with the accord PCM.

 

ive been running 87 in my car for almost 4 years and it is perfectly fine.

 

I'm with you

 

 

I don't believe the hype/advertising or urban legends about the detergent properties of premium fuel versus regular gas. Reputable brands of gasoline - of every grade - contain additives to prevent buildup within your engine.

I seriously doubt that Exxon, Shell or BP would deliberately not put those additives in the lower grades of gas. That would be extraordinarily bad business because the lower grades are what most people buy. If my CLS would run (well) on 87 - I would run 87.

As for octane levels - the only purpose of octane is prevent the fuel/air mixture from detonating at a certain temperature. The higher the octane - the higher the temperature. Using a higher octane than required is foolish. The minimum octane to prevent auto-detonation on the piston upstroke is what you should use.

Using less than the required octane will not cause the CLS to knock - due to the knock sensor - but it will reduce the performance of the car.

I know everyone's situation is different, but it's really not that much more money to run the correct fuel. I fill up my car about every 10 days on average. It has a 17 gal tank, but I usually put 13 gals or less in on a fill-up. 20 cents more per gal = $2.60 more per tank x 36.5 tanks per year = about $95 extra dollars/year. Or, put another way, if you had 1 less Starbucks coffee every 2 tanks of gas you'd break-even on the money. Just run 91!

 

haha, i go out of my way to get to a sunoco because they have 91. if i can't get to a sunoco, i'll put in 93 of something else

 

I use premium gas but if you were to use 87 would it damage the car to go into vtec

 

it doesnt sound like much to you cause you fill up every 10 days. i fill up 2-3 times a week.

ill keep running 87, i go slow in my car anyways. its too low to be hauling ass all over the place

 

2-3 times/week! Wow! That would be between 500-700 miles per week for me, but a good portion of my commute is on the highway.

Like I said - every person's situation is different - and when money is tight every little bit helps. However, even if someone fills up 10 times per month it's still less than $30 extra to use premium. Most folks can find $30 extra in a given month.

I mean - you can take your lady to the movies for $30 as long as you share a coke and she agrees not to eat any popcorn!

 

You bought a car with a high 10.5:1 compression. You bought a car that requires 91 or better gas. You fill up many times per week, you should be able to afford the little extra for the correct fuel

 

Believe it or not, Acura knows what they are doing. If the car ran properly on low grade fuel Acura would not have specified the good stuff.

Do it right.

 

I tried all 3. Most of the time I had my CL I used premium. I switched to 87 for a month and 91 for another month. That was about 6-8 fill ups. I never noticed any pinging, or knocking. No CELs.

I went back to Premium for the same reason I use it in my cars now....gas mileage was better and responce was better. And I tested it with my I35 that I have now. Got a lot of crap for using 87 in it. But, I had to check for myself. I do a lot of driving, so for me performance and mileage is an important issue.

 

87 gas = Ghetto

If you use 87 gas and actually spend money to mod your cars with performance parts for more hp, does that really make any sense at all.

If someone told you that you could have a 10 hp increase for $150 a year, I bet mostly everyone would take it.

Also, it is not proportional with the amount you save at the tank each fill.

You will not get as good of gas mileage with 87. The math is simple.

14 gallons for 93 at 3.29 per gallon at 20 mpg = 280 miles for $46.06

14 gallons for 87 at $3.09 per gallon at 18 mpg= 252 miles for $43.26

So you save $2.80 at the pump, but you lose 28 miles total which equals atleast 1 gallon more at $3.09 per gallon.

So by using 87 vs 91, you actually lose money and you lose hp.

So for all you people its a lose lose situation.

 

I don't know, an extra $3 for a tank is an aweful lot of money.

 

especially when you own a luxury brand car..

 

Cheap ass.

 

Anybody else notice this?

Why the fuck would go out of your way to use 91, when can use 93? That's retarded. I bet they're the same price, as well.

 

why would they be same price. now that's kind of "retarded"..and i like to keep something consistent in my tank. it asks for 91. i put in 91.

 

Only reason it says 91 or higher is cause Cali doesn't have 93. I think CA people are getting diminished performance from 91.