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      07-19-2018, 07:44 AM   #1
SonnyJack
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98 & 100 Octane From the Track

So, after four track events and one autocross I decided it was time to change my oil and send off to Blackstone for analysis. On at least three of these events (either at Dominion or Summit Point) I put some 98 or 100 octane "unleaded" fuel in my car. Seems it's not as unleaded as I thought. My analysis shows a decent amount of lead in my oil which I am assuming is from the track gas.

For those of you who have far more experience than myself, is this going to cause me any long-term problems?

Thanks!
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      07-19-2018, 07:51 AM   #2
Mvy
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Its well known that track gas does commonly have lead in it so may be best to avoid this gas in your car. I think the biggest risk to lead in your fuel would be to your cats and your o2 sensors. It could foul them. Im not sure two or three tanks worth would be enough to cause you to need to replace them, but its a possibility. Watch for cat efficiency and o2 codes.
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      07-19-2018, 08:29 AM   #3
SonnyJack
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Quote:
Originally Posted by Mvy View Post
Its well known that track gas does commonly have lead in it so may be best to avoid this gas in your car. I think the biggest risk to lead in your fuel would be to your cats and your o2 sensors. It could foul them. Im not sure two or three tanks worth would be enough to cause you to need to replace them, but its a possibility. Watch for cat efficiency and o2 codes.
Thanks!
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