91 or 93
87 octane.
Unleaded...if it's a stock engine you can run 87 octane.
Each car should have a recommended fuel octane in the owners manual.
According to the 2002 Lincoln Continental Owner Guide : ( " premium " unleaded , 91 octane or higher is used )
Premium unleaded 98 Octane
I would run a mix of 32:1 with 89 octane fuel.
Premium. Octane rating of 91 or higher.
87
87 octane should be sufficient
with an octane mesurer
Probably but you should use the grade recommended in the owners manual. All of the sensors and the computer are calibrated to the recommended fuel.
Poor fuel or water in the fuel. Using the wrong octane fuel.For the 2001 you should use Unleaded fuel only.87 to 91 octane.