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110 octane??

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Old Jul 25, 2004 | 09:21 PM
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Default 110 octane??

i recently cut some 110 octane (5 gal) with 93 octane ( 10+gal) now service engine light on...im guessing its b/c of the gas...what codes will i see if tested...and is it bad for the ls1?
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Old Jul 25, 2004 | 09:40 PM
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110 oct is a leaded gas probably. you just killed your O2 sensors.
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Old Jul 25, 2004 | 09:54 PM
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I have ran Turbo Blue in my z28 before with no prob. that is 115 octane and smells like methanol. i have had no probs with it. high octane shouldnt hurt it.

Mike
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Old Jul 25, 2004 | 10:00 PM
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lead fouled O2 's
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Old Jul 25, 2004 | 10:30 PM
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Lead fouled 02s
Get the code and Im sure it will point at the o2s.
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Old Jul 25, 2004 | 10:36 PM
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whats the highest octane that should be used in our cars?
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Old Jul 25, 2004 | 10:51 PM
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It's not the octane, it's the lead. The highest unleaded gas I've seen is 100, at least in PA.
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Old Jul 25, 2004 | 11:55 PM
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leaded up 02's...

They might clear up with regular gas... if the code persists you might try cleaning the 02's...
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Old Jul 26, 2004 | 12:01 AM
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hm that is strange, nothing happened to mine when i ran 115 in it. oh well, good luck on the prob, sounds like O2's

Mike
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Old Jul 26, 2004 | 12:30 AM
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If you have brand new 02s you can sometimes get away with it. But older 02s that are half clogged anyways seem to foul very quickly. I had a set that fouled in 25 minutes of driving. Its also exacerbated by the fact that when you use 110 octane on your normal tune you will usually be running MUCH richer so the mixture doesnt burn completely. This is especially true at idle and part throttle.

So just stick to 100 octane unleaded. I know they do have 110 unleaded but I havent been able to find a plce locally to buy it.
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