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Fuel Question


2003SilvSS

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Posted

I found a post on here about 4 pages long on different octane's that people are running. The last time I filled up at the pump, I was running low on cash, so I filled up with 87 Octane. Man I think I noticed a big difference. Just cruising around it's fine, but stepping on it a little, I think there's a big difference. Lots of people said it would run rough and ping with 87 octane fuel, but I never noticed any pinging, just doggy acting. I guess I'll spend an extra 5 bucks at the pump and get the higher octane, 91 or 93. It just sucks ass when it's 2.00$/gallon

 

Brian

Posted
I found a post on here about 4 pages long on different octane's that people are running.  The last time I filled up at the pump, I was running low on cash, so I filled up with 87 Octane.  Man I think I noticed a big difference.  Just cruising around it's fine, but stepping on it a little, I think there's a big difference.  Lots of people said it would run rough and ping with 87 octane fuel, but I never noticed any pinging, just doggy acting.  I guess I'll spend an extra 5 bucks at the pump and get the higher octane, 91 or 93.  It just sucks ass when it's 2.00$/gallon

 

Brian

When you run less than 91, the PCM reverts to a low-octane "timing table" and pulls timing. So there is certainly less power, but not necessarily pinging.

Posted

I run 87 all the time in my SS and no problems, I have even towed with a two-place ski-doo trailer and no such pinging. There is onehelluva difference for mine when 91 is used. It really snaps.

Posted

yup. I've ran 87, 89 and 91. I almost always run 89 10% ethanol. never have any pinging with any of them and gas mileage was always the same. I'll only put in 91 when I'm going to the track :thumbs:

Posted
I found a post on here about 4 pages long on different octane's that people are running.  The last time I filled up at the pump, I was running low on cash, so I filled up with 87 Octane.  Man I think I noticed a big difference.  Just cruising around it's fine, but stepping on it a little, I think there's a big difference.  Lots of people said it would run rough and ping with 87 octane fuel, but I never noticed any pinging, just doggy acting.  I guess I'll spend an extra 5 bucks at the pump and get the higher octane, 91 or 93.  It just sucks ass when it's 2.00$/gallon

 

Brian

 

man, I wish i could get 93 for $2.00 a gallon,, 2.50-2.70 by my area

Posted

I only run Sunoco 93 or 94 in mine. Local stations have 93 for $.06 off a gallon on Tues and 94 on Wed. I also picked up a Sunoco master card which you get 4% off each purchase from sunocos and 1% off all others applied towards the next months bill. If i run the local Sheetz's 92/93 octane I ping.

Posted

I have never put anything but 93 in mine. I try to follow what the gas cap says "premium fuel only." But, if you can get by with 87, go for it.

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