Steve
Interesting Oil analysis. My 03 GMC Yukon XL 2500 had high Lead content because Chevron 94. I dropped to 91 Octane and Lead ratio dropped significantly. I use Mobil 1 and change at 4500 mile increments.
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1971 W30 convert, triple green,second owner.
1971 W30 Convert, special order Rally red, completed
68 Camaro Z28,Corvette Bronze,Houndstooth
2016 Porsche Carerra Cab and 2021 C63S AMG ,modern fun.
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