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Discussion Starter #1
Can you mix unleaded and leaded fuels together,I run 93 oct shell in my pulling truck and have about 6 gal of 110 oct sunoco racing fuel I need to get rid of, will be about a 50/50 mixture.
 

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oxygen sensors dont like leaded fuel... it coats them and wipes them out. some modern ones are self heating and arent affected as much, but still not a good idea for fuelies
 

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Wreaks havoc on the CATS as well. Pulling truck should be no problem.
 

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Discussion Starter #6
Thanks guys for the advise,went ahead and mixed it last night then went pulling. didnt notice any difference, but with only 11.5-1 comp I didnt think I would.
 
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