What kind of gas are you guys using?
Supreme Underlord/Abyss
Joined: Mar 2004
Posts: 563
Likes: 1
From: Long Island, NY
The flammable stuff.
I think Acura recommends 91 octane, but if you can't get 91, get higher or combine higher and lower to get as close to 91 as possible.
It's probably more hassle than it's worth to combine, though...
Regards,
I think Acura recommends 91 octane, but if you can't get 91, get higher or combine higher and lower to get as close to 91 as possible.
It's probably more hassle than it's worth to combine, though...
Regards,
Three Wheelin'
Joined: Jul 2005
Posts: 1,435
Likes: 0
From: Central NJ
93 octane here. There's actually a place about 20 min. from where I used to live that sold 100 octane, but that went for about $7.00 a gallon. A friend of mine who drives an S4 filled it up w/ it one time, and DAMN did his car fly 
Suzuka Master
Joined: Jan 2005
Posts: 7,438
Likes: 1
An S4 only has a compression ratio of 11:1 and there is no forced induction, sooo, I would conclude that it should not perform any differently than if it was running 93.
I would recomend 93, but 91 is fine too. If you have anything Higher you dont need to mix to bring the octane down.
I would recomend 93, but 91 is fine too. If you have anything Higher you dont need to mix to bring the octane down.
Intermediate
Joined: May 2005
Posts: 34
Likes: 0
From: Columbus, Ohio
where i live, you can only get 92 or 93 for premium. the next lowest grade is 89. i feel that if i have a choice between 92 and 93 at the same price why not go with 93. mobil seems to be the cheapest station along my route week in and week out, so i go with mobil which has 93.
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Instructor
Joined: Dec 2003
Posts: 186
Likes: 3
Originally Posted by mojo risin
where i live, you can only get 92 or 93 for premium. the next lowest grade is 89. i feel that if i have a choice between 92 and 93 at the same price why not go with 93. mobil seems to be the cheapest station along my route week in and week out, so i go with mobil which has 93.
They don't sell 91 octane in NJ. 87, 89 or 93 with some exceptions.
08' TL-S RuLeZ
Joined: Sep 2005
Posts: 147
Likes: 0
From: Somewhere MAD hot
I use water.
My 05 TL is special edition that Acura Michael (my friend) made just for me.
Its a hybrid and use 17 gallons of evian. I used Poland Spring before and my TL had engine ping.
Im gonna try to put in capri sun tomorrow.
My 05 TL is special edition that Acura Michael (my friend) made just for me.
Its a hybrid and use 17 gallons of evian. I used Poland Spring before and my TL had engine ping.
Im gonna try to put in capri sun tomorrow.
IT OWNS
Joined: Sep 2005
Posts: 55
Likes: 0
From: PA
I believe the reason they "say" to use 91 is simply because the car can run efficiently on 91. If you run higher, say...93 or 94 (sunoco) it will not hurt. Is there gain? Little to none, but your combustion will be more thorough and cleaner. So if you have access to higher (93 or 94) and doesn't kill your wallet, don't be shy.
300whp 237wtrq
Joined: Apr 2002
Posts: 787
Likes: 0
From: Bellevue, WA
Originally Posted by crazymjb
An S4 only has a compression ratio of 11:1 and there is no forced induction, sooo, I would conclude that it should not perform any differently than if it was running 93.
I would recomend 93, but 91 is fine too. If you have anything Higher you dont need to mix to bring the octane down.
I would recomend 93, but 91 is fine too. If you have anything Higher you dont need to mix to bring the octane down.
Instructor
Joined: Oct 2005
Posts: 156
Likes: 4
so if someone uses 87 or 89 will it be bad?...the reason i am asking is cause i dont want to mess up anything, but in my area (connecticut) it seems as if the 93 is a 35-40 cent differnce from the base fuel....so far i have been using 93 Mobil/Exxon
Instructor
Joined: Jan 2004
Posts: 219
Likes: 0
Originally Posted by invincible569
Is it true that the higher octane gas burns faster? Common sense would tell me yes.. but does anyone know technically?
Originally Posted by pzero23
I use 93 up in my 03 tl-s. I only have three options here 87 89 93. 93 is close enough for me.
But we dont so i use Chevron 91 everytime!
Cold Racketeer
Joined: Sep 2005
Posts: 1,009
Likes: 2
From: Chantilly VA
i think mixing 89 and 93 is the best solution unless you can buy 91 directly. if you alternate 89 and 93 (before your tank is empty) this should give you an octane level that is ideal for the car, at an average lower price than all 93. there is no reason that i am aware of to buy 93 or higher all the time in terms of what's good for the car.
Safety Car
Joined: Jul 2004
Posts: 3,589
Likes: 1
From: NorCal
Originally Posted by morninglight
John Eagle Acura - in houston - says to use the middle grade........ no one has "91" in houston.......
im wondering if i should combo premium and middle?
im wondering if i should combo premium and middle?
Originally Posted by Atrain
By using a higher octane fuel, the engine is less likely to ping or knock. Engineers can dial in more spark and gain more power. It also ensures the engine won't ping when loaded with a locked-up torque converter (5AT only), the air conditioning on and climbing a grade. So should you use 94 octane in your 2004-2005 Acura TL? No, you can use it, but you are wasting your money. Using more octane won't hurt anything (unless it's leaded fuel with 100+ octane), but using less octane can be bad. Especially if your engine has hypereutectic pistons. With any engine that has Knock Sensors, using less octane than what is required will almost always set them off and reduce performance. It also reduces efficiency of the engine since after all, what determines power output is how well it burns the fuel. Will fuel economy suffer, yes. How much? It's hard to say and there are many factors that contribute to the economy and spark timing at WOT is critical to making maximum power, not efficiency. So using 87 octane in the TL will almost always result in reduced performance due to the KS.
"Joe Cool"
Joined: Sep 2005
Posts: 484
Likes: 0
From: So. Cal
Originally Posted by dooky211
Wish we had 93 in the So Cal....
But we dont so i use Chevron 91 everytime!
But we dont so i use Chevron 91 everytime!
Same here!!
91 it is.... "I got no where else to go"!!!
89...
You spent so much on the car, you might as well spend a little more on gas.
Or get a Hyundai..
... I could only feel the difference
Instructor
Joined: Sep 2005
Posts: 171
Likes: 0
From: Monterey, California
I know it's sacreligious, but I've been puting 87 or whatever the cheapest gas is since I've had my TL. Although I did put premium in for one month to see if there was a difference and acording to my figures my MPG dropped by about 3-4 miles when I was on the good stuff. So go figure,.. I mean, I haven't heard any knocks or pinging and the car runs like a champ.
06 Anthracite TL
Joined: Aug 2001
Posts: 1,997
Likes: 335
From: Myrtle Beach, SC as of 5/2016
I'm sure a lot of people will disagree with me, but extra octane (essentially a flame retardant to prevent pre-ignition) does nothing. If the car is designed to run on 91 octane, that is the ideal gas. Anything less will allow the car to run, but probably not as efficiently. All cars have a knock sensor, so if preigntion occurs, then the timing will be automatically retarded somewhat to prevent further preignition. If a car is designed to run on 87 octane, then using 91 or better provides no benefit. Also, all gas is essentially the same, regardless of brand. They are all required to have certain detergents according to federal law, but I seriously doubt there is any major difference from dealer to dealer (I guess it depends on who has the best marketing strategy). Also, octane numbers vary depending on where you live and the altitude you reside at. My brother lives in Colorado and he typically sees regular gas with an 85 octane number (up in the mountains) vs. the normal 87 seen at lower altitudes.
Keep Right Except to Pass
Joined: Aug 2004
Posts: 2,411
Likes: 45
From: Kingstowne, VA
Sunoco is the only place around here that sells 91. If I need gas when I'm passing a Sunoco, I'll buy the 91. Otherwise, I use 93. It is not worth it to drive out of my way to find a Sunoco just to buy 91 octane because the price savings is not enough to offset the waste of gas involved in driving there; also, some of the other stations around are enough cheaper than the nearest Sunoco (probably because the Sunoco is by itself, whereas the others are on a street with several gas stations) that I sometimes pay less for 93 than I would for 91.
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