What Gas/Fuel Octane are most running? - Page 4 - Dodge Caliber SRT-4 Forums

MANDRUZZI · 07-21-2008, 01:32 PM

I ran 2 tanks on 87 and then 2 on 93. I felt a big difference on responce time. It could of been mental i guess. I swear the 93 did better when changing gears.

moparman53 · 07-24-2008, 06:32 PM

I haven't run any 87 yet. Two tanks of 87, followed by a tank of 93 seems to be working well so far.

Trinity · 07-25-2008, 10:00 AM

I ran on 93 for the first 2500... then 89... and now I have 87 in the tank. Sometimes 89.

93 was about 4.30 a gallon here... it's about 4.17 now... so I am almost willing to start using that again. And yes.. I realize it only saves like 3 bucks.. but I could use that towards another gallon... another 25 miles. I just got a new job so money is slow for a while.. so I save every penny I can.

rubi-soho · 07-25-2008, 07:25 PM

its so stinking hot here that I run 3 gal of 100 mixed with 91 for a full tank. cost about $4 more a tank... and its all good. didnt have any knock... but at 100* + every day I dont like the idea of running 87 and full boost in third.

pinecipal · 07-29-2008, 06:09 PM

Up here in the great white north, octane levels higher than 91 are only widely available through Sunoco. I mix their 94 with the premium 91 from other gasoline suppliers. No knock.
St. Catharines ON

EVLPMKN · 08-12-2008, 09:23 PM

Quote:

Originally Posted by fastyz400

104 octane race fuel $60 for 5 gallons.

Where in town are you purchasing your 104 race fuel? I am I am fairly close to your location, I am about 7 miles away from the new stadium.

gsxr7racer · 08-12-2008, 10:32 PM

Quote:

Originally Posted by Adam88

I personally would stay around 93 octane for a Daily Driver, just because the higher the grade of octane the quicker it burns so the less mileage you will get. You can run 104 octane without it eatting any seals though I believe.

Oh the great octane debate... the owner's manual "recommends" using 93 and states plain as day you can use what ever you like, it will just make the motor make less power. And I have to disagree with the above statement, the less octane you have the quicker the burn, that is why higher octane is more resistant to knock, it doesn't explode as quickly. Personally I am using 91 octane and it doesn't seem to make a whole lot of difference from the one tank of 94 I tried to the 91... the car still hauls ass!!

EVLPMKN · 08-13-2008, 07:06 PM

With the extreme heat we have in Arizona during the summer I have started noticing a very slight knock when I first get on it. The car adjusts quickly and it goes away but I do not want any knock.

I want this car to last at least 140K miles. (That is a little over 10 years on driving for me). I was going to keep my Mustang and drive it about 1/2 the time to keep the mileage lower on the SRT4. But I can't afford to keep up the maintenance and insurance on 4 cars. Plus the more I drive my SRT4 the more I love it, it sucks getting back into the slow v6 mustang.

07-21-2008, 01:32 PM	#31 (permalink)
MANDRUZZI Member Join Date: Jan 2008 Location: San Antonio Posts: 75	Test I ran 2 tanks on 87 and then 2 on 93. I felt a big difference on responce time. It could of been mental i guess. I swear the 93 did better when changing gears.

07-25-2008, 07:25 PM	#34 (permalink)
rubi-soho Member Join Date: Feb 2008 Posts: 72	its so stinking hot here that I run 3 gal of 100 mixed with 91 for a full tank. cost about $4 more a tank... and its all good. didnt have any knock... but at 100* + every day I dont like the idea of running 87 and full boost in third. __________________ '08 CSRT4 silver.... lead foot.

07-29-2008, 06:09 PM	#35 (permalink)
pinecipal Junior Member Join Date: Apr 2008 Posts: 4	Octane Levels Up here in the great white north, octane levels higher than 91 are only widely available through Sunoco. I mix their 94 with the premium 91 from other gasoline suppliers. No knock. St. Catharines ON

08-13-2008, 07:06 PM	#38 (permalink)
EVLPMKN Member Join Date: Jul 2008 Location: Phoenix, Arizona Posts: 51	With the extreme heat we have in Arizona during the summer I have started noticing a very slight knock when I first get on it. The car adjusts quickly and it goes away but I do not want any knock. I want this car to last at least 140K miles. (That is a little over 10 years on driving for me). I was going to keep my Mustang and drive it about 1/2 the time to keep the mileage lower on the SRT4. But I can't afford to keep up the maintenance and insurance on 4 cars. Plus the more I drive my SRT4 the more I love it, it sucks getting back into the slow v6 mustang. __________________ 2008 Caliber SRT4 1998 Ford Mustang 1965 Chevy C10 (EVLPMKN) 1963 Ford Falcoln Convertable

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07-24-2008, 06:32 PM	#32 (permalink)
moparman53 Member Join Date: Jun 2008 Location: Taylor, TX Posts: 68	I haven't run any 87 yet. Two tanks of 87, followed by a tank of 93 seems to be working well so far.

07-25-2008, 10:00 AM	#33 (permalink)
Trinity Member Join Date: Jun 2008 Location: Maryland Posts: 53	I ran on 93 for the first 2500... then 89... and now I have 87 in the tank. Sometimes 89. 93 was about 4.30 a gallon here... it's about 4.17 now... so I am almost willing to start using that again. And yes.. I realize it only saves like 3 bucks.. but I could use that towards another gallon... another 25 miles. I just got a new job so money is slow for a while.. so I save every penny I can.

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