87octane
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98 ultra misfire and knockish sound after running 87, low oil life I know it needs a change and I'm gonna change the super charger oil
I put 87 in by accident a week after purchasing this 98 Buick park Ave ultra with a very pleasing supercharger, and I've been told it reguires 91. The day after it started missing and has ran like that for the past few days, it also is making an almost knocking sound. I placed my hand on this...- Vwguy98
- Thread
- 87octane help misfire park ave premium fuel ultra unleaded
- Replies: 8
- Forum: Buick Park Avenue Forum
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