Don't wate your money on more than 87! - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 20 (permalink) Old 11-11-2001, 05:45 AM Thread Starter
 
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Don't wate your money on more than 87!

OK, well I'm one of those guys that kinda bought into the fact that the R/T would gain the extra 10HP or so by using premium gas! I actually used 92 octone for over a year. Anyway, for about the last three weeks or so I've been using 87 octane and noticed the car ran just as good, if not better! Well, I made my monthly trip to the drag strip tonight and ran my best time EVER, on 87 octane! So, any of you guys using more than 87 octane cuz you think it's giving more HP please stop wasting your money! I'm done spending the extra $.20/gallon! By the way, my time was a [email protected] Not as good as Spook's, but it also wasn't 38 degrees outside. I haven't run a 15.65 since April using 92 octane, then I switch to 87 octane and run a 15.65! I could've done better too, but it was raining and I didn't get a chance to make another run.
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post #2 of 20 (permalink) Old 11-11-2001, 09:41 AM
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bboucher i agree with you mine runs just as good on 87 octane as 92 octane. I ran 15.606 on 92 octane and a 15.131 on 87 octane. It also seems to run better on the 87 octane. The weather here has been great high 50`s the last 2 weeks and they say the same for next week.
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post #3 of 20 (permalink) Old 11-11-2001, 02:49 PM
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Have either of you noticed any difference in fuel economy 87 vs. 92+?
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post #4 of 20 (permalink) Old 11-11-2001, 03:47 PM
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The old butt dyno tells me that I am losing a wee bit of performance and there is also very light audible pinging when I run regular unleaded. The car runs like a top on mid-grade so that is what I always buy.

As for mileage I get about 20-30 miles more out of a tank of regular, but that isn't enough of a trade off, plus I don't want the car to be knocking and eventually ruin something.

Probably has something to do with the high compression on the 1G 3.5L's.
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post #5 of 20 (permalink) Old 11-11-2001, 04:25 PM Thread Starter
 
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I stopped trusting the old butt dyno a long time ago! Everytime I changed something, it always felt like the car was faster, than I'd go to the track and it would be just the same, or even slower in one instance.

I know a car can get used to the higher octane's and won't run as good with regular anymore, that's one reason why I'm posting this. Switch back to regular now and save yourself some money
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post #6 of 20 (permalink) Old 11-11-2001, 04:56 PM
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Nah, I'll stay with the mid-grade. No knock, plus at the station I fill at they charge the same for regular and midgrade.

Currently $1.049 a gallon.
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post #7 of 20 (permalink) Old 11-11-2001, 04:57 PM
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I agree that the extra octane is a waste. I ran Mobil Super+ for three weeks to see if there was any difference and there was none. I switched back to 87 octane and am happy to be saving the money.

If there are no real gains to be had why spend the money?
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post #8 of 20 (permalink) Old 11-11-2001, 05:22 PM
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I usually just use mid-grade, but if I can save another dime or so per gallon without losing performance or fuel economy, I may try out the cheap stuff, especially at $.99 a gallon! Could use a few extra bux in savings.
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post #9 of 20 (permalink) Old 11-11-2001, 05:56 PM
 
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I use midgrade from Mobil and have no plans on changing...it's a habit ;)
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post #10 of 20 (permalink) Old 11-11-2001, 06:33 PM
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The mpg seems the same for my car. Gas here is $1.07 for 87 octane.
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post #11 of 20 (permalink) Old 11-11-2001, 08:17 PM
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Where do you gas up Spook? If you are in the area at all, the Conoco station down on the corner of Humbolt and 69th in BC is selling 87 and 89 for $1.04. They always have the lowest prices around.

Hell, 4 blocks away the gas stations along 252 sell for 10 cents a gallon more!
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post #12 of 20 (permalink) Old 11-11-2001, 08:42 PM
 
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1.04 a gallon?! i havent paid that in years. i believe when i turned 16 gas was just over a buck out here in cali and it hasnt really gone down since. im outraged...is it really that more expensive to ship it here compare to anywhere else in the us...i think not.
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post #13 of 20 (permalink) Old 11-11-2001, 09:09 PM
 
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about the octane thing.... the first gen 3.5's were setup to run best on 89 octane, not 87. thats why they run better on mid-grade
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post #14 of 20 (permalink) Old 11-11-2001, 10:27 PM
 
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We are paying about $1.29 for regular at the cheaper stations out here on the island. At least that's what I'm finding...
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post #15 of 20 (permalink) Old 11-11-2001, 11:14 PM
 
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I've always thought my 98 ES ran a bit better on 89 then 87 but being Cali gas prices were pathetically high for awhile. Stick with 89 & if you run the cheap shit pray it doesn't clog up your fuel filter, it isn't a cheap fix. :(

Some stations don't even sell 87 anymore, just 89 & 92. Eventually 92 will be gone anyways.
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