I bought a 91 Pontiac Firebird Formula in August '12. It had sat previously for about 5 years, so I had to replace alot of the fuel system to get it running. Since then, I have put about 10k miles on the car and every UOA shows high lead content. The car runs great and has no leaks. At the last oil change, I happened to check the oil before I drove it to get it warmed up, and it was about 1.5qts down, which I noted on the form. I think it was like that since the last OCI, as I have not lost any oil in the last 1k miles.
Oil has always been Mobil 1 0w30 and a Purolator filter.
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Oil has always been Mobil 1 0w30 and a Purolator filter.