I don't believe anybody eveny uses regular.

so do you fill up with mid-grade? or is it premium?

 

'99 manual says 90 octane. I put in 89. I don't think 1 will make that big of a difference. Plus 93 is a bit higher in octane and price. In my mind it won't make that much of a difference.

 

Mine says "Premium Gas Only" so that's what I use.

 

The manual acutally saids to use at least 91 octane. Here in CA, the highest octane we have is 91 and I have never seen 93. So I use Chevron Techron 91. I don't think it matters if you put anything less as far as things breaking down, it will only effect your performance.

 

I put in 91 as well...like the manual said.....although I think they suggested higher like 98...but then again..there is nothing more than 91 here....too bad.....

 

98? Where did you see that? Of course you can always get octane boost and boost it up to like 110 or something, but your spark plugs will be fried.........

 

i use plus (the middle one)

 

93 Octane

 

You can use lower octane fuel as long as the engine does not knock or ping (detonation). The engine will adjust to lower octane fuel by retarding the ignition spark and stop the knocking and pinging. The use of higher octane will allow for more ignition advance and higher performance. I have heard that some cars actually get less gas mileage from using higher octane fuel, because it doesnt burn as easily as lower octane fuel.

 

im runnin the supreme/premium/utlimate... usually i stick to using Exxon Supreme... the 03 manual suggests above 91or92... i forget but the high grade gas is good enough for it

 

94 Octane all the way, thats the only one I use

 

91 or whatever the highest I can get. Only Chevron and 76 and only switch after the tank is almost to dead empty.

 

You should only fill up with what the manufacture says to use. There are drawbacks to using higher or lower octane.

Higher octane is a waste of money. In order for an engine to take advantage of higher octane it needs to be able to compress the gas more than it was originally designed.

Lower octane is worse than using higher octane because it can actually cause damage. The gas will ignight as it is compressed before the spark plug fires. This causes knocking in the engine! A sure way to ruin your engine.

For more deail information check out this very informative write up from one of my favorite websites:

http://www.howstuffworks.com/question90.htm

 

I don't care which brand personally, as long as it's a 91.

 

I never use "ARCO".

 

My manual says use premium. For me that's 93. Not much of a difference in price compared to 91.

 

Strictly Amoco/BP ultimate gas for my baby! I think it's 93 or something like that.

 

I'm not sure if I've ever used ARCO...never really pay attention...but what's wrong with them?

 

I only use Premium



@cUr@-TL

 

i put in regular, i think it's octane 87, i dun find any problem with that,

 

I've heard that they have water contents mixed with gasoline at ARCO, that's why their prices are always cheaper than others.

 

Sunoco 94. !!!!

 

shell 91

don't like to mix with other brands or go higher with sunoco 94...which is useless for our car

 

Sunoco Ultra 94 only for my cars

 

Lately I've been getting gas from whichever pump appears to be the safest...

 

Physically safe? As in you can't get out of your car to pump your gas beacuse you might get hurt safe?

 

Using less than 91 octane gas is false economy. The computer makes adjustments in the timing to compensate for lower octane gas. This means using regular won't hurt your car but it will compromise power and mpg. You will not notice the loss of power in normal driving but if you calculate your mpg on different grades of gas(as I did) you will find you don't save any money by using regular. Please trust me on this and end this thread.

 

What rock are you hiding under??? ScotTLTypeS lives in Virginia. Turn on your TV and watch the news. You will learn that there is a sniper on the loose just randomly shooting people.

 

quote:
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Originally posted by edgalang


Physically safe? As in you can't get out of your car to pump your gas beacuse you might get hurt safe?
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Well, my post on this topic was kinda out of the blue... But yes, getting gas has taken on a whole new meaning in the D.C. area.

Makes me want to :yack:


But back to the actual topic... I use Exxon or Mobil 93 octane...

 

samkws,

Don't want to sound like a broken record... but you do know that Shell uses an additive which has been known to cause buildup ! I remember reading numerous articles on it on the web... I'll post if I find them again...They may have stoped using it ... I don't know for sure, but I haven't heard much lately... (this was back in 99,00 when I read this).

As to why 94... it only 2c more than 91...so on 50L fill up it only $1 more, so while I completely know it will do nothing more than the regular 91 on our cars ... its just something I do

Does any car require 94? Just curious.

 

Sunoco 93 Octane..
Ed

 

93 octane tried 87 a couple times and gas milage went down performance did to a little

 

well tests have been done saying that cars like accord which states that using 87 is fine, and putting in 93 isn't gonna do anything. but for cars which require / recommend to use premium, putting in 87 or 89 will only degrade the performance.

i have never put in anything less than 91 on my cars. imho if you can't shell out another 200 bucks a yr for having 91 or higher gas, you don't deserve to drive the car. that's if you think 89 is going to save you more money